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Positive-pressure crankcase ventilation

Patent Number: 8109259
Publication Date: 2012-02-07
Inventors: Ulrey, Joseph Norman; Pursifull, Ross Dykstra

A method for combusting a vapor of a fuel accumulated in a crankcase of an engine, the engine disposed in a vehicle having a fuel tank and an adsorbent canister coupled to the fuel tank. The method comprises flowing compressed air from a first air source through the crankcase to yield a crankcase effluent enriched in gasses leaked from the combustion chamber, which include the fuel vapor. The method further comprises combining the crankcase effluent with an effluent from the adsorbent ...

Method of diagnosing a slow EGR system in an internal combustion engine

Patent Number: 8109258
Publication Date: 2012-02-07
Inventors: Allain, Marc Christian; Menoyo-Alonso, Miguel

There is disclosed a method for diagnosing slow EGR response in an internal combustion engine equipped with an electronic controller with memory. In one embodiment, the method includes passing an EGR setpoint value and an actual EGR value through first order filters to eliminate high frequency noise; determining an actual EGR gradient as a function of any difference between the EGR set point and the actual EGR value while simultaneously determining an actual EGR gradient; and logging a ...

Fluid selection valve unit, exhaust gas control valve having the same, and waste gate valve having the same

Patent Number: 8109257
Publication Date: 2012-02-07
Inventors: Shiraishi, Takashi; An, Byeongil

A fluid selection valve unit comprising a valve seat having a side surface having a predetermined depth and a bottom surface continuous to the side surface and a valve member supported with a rotary shaft at one end. The valve member includes a bottom portion and a side end surface formed above the bottom portion, and is configured so that a passage area of a gap formed between the side end surface of the valve member and the side surface of the valve seat is smaller than a contact passage ...

Solenoid current control with direct forward prediction and iterative backward state estimation

Patent Number: 8109256
Publication Date: 2012-02-07
Inventors: Stiles, Steven Douglas; Xiao, Yun; Williams, Carnell E.; Ge, Ping

An engine control system comprises a current control module and a solenoid actuator module. The current control module determines a duty cycle based on a desired current through a solenoid of an engine system and a resistance of the solenoid and corrects the resistance based on an actual current through the solenoid. The solenoid actuator module actuates the solenoid based on the duty ...

Engine controller

Patent Number: 8109255
Publication Date: 2012-02-07
Inventors: Stewart, Gregory E.; Rhodes, Michael L.

A system for controlling fuel to an engine to minimize emissions in an exhaust of the engine. There may be a controller connected to an actuator, for example a fuel control actuator, of the engine and to emissions sensors, such as an NOx and/or PM sensor, proximate to an exhaust output of the engine. The controller, for example a speed controller, may have an input connected to an output of a pedal or desired speed setting mechanism. A speed sensor at a power output of the engine may be ...

Method of controlling the spark lead of an internal combustion engine

Patent Number: 8109254
Publication Date: 2012-02-07
Inventors: Poggio, Luca; Po, Giacomo; Cavina, Nicolo′

A method of controlling the spark lead of an internal combustion engine having at least one cylinder fitted with a spark plug; the method including the steps of: determining a standard spark lead value; determining an engine knock index in the cylinder; calculating a correction factor as a function of the engine knock index; determining a modified spark lead value by applying the correction factor to the standard spark lead value; and controlling the spark plug using the modified spark lead ...

Method for ascertaining the noise emission of an internal combustion engine

Patent Number: 8109253
Publication Date: 2012-02-07
Inventors: Schueler, Matthias; Engber, Arnold; Youssef, Mohamed; Kessler, Michael; Loeffler, Axel

Methods for ascertaining the combustion noises of an internal combustion engine need only a structure-borne noise sensor and may be carried out using little computing ...

Rotary engine combustion chamber

Patent Number: 8109252
Publication Date: 2012-02-07
Inventors: Watkins, Barton W.; Hendrix, Lawrence A.

An apparatus for facilitating combustion in a rotary engine with planetary rotors orbiting inside a housing containing a main rotor. In various embodiments, the planetary rotor has a multi-faceted face that engages a bridge during the transition from the compression cycle to the combustion cycle with the bridge and face forming a dynamic seal; the planetary rotor has a face engaging a bridge during the transition from the compression cycle to the combustion cycle such that the bridge and ...

LPG fueled internal combustion engine powered devices

Patent Number: 8109251
Publication Date: 2012-02-07
Inventors: Kostka, David; Herzer, Bernardo J.

A gas phase of LPG such as propane is used to power a small internal combustion engine driving or powering a preselected device such as a powered lawnmower, weed whacker, string trimmer, leaf blower or the like and the fuel system is provided with heating arrangements that insure the gas phase of the LPG is discharged from the LPG tank for all operating conditions of the ...

Glow plug with integrated pressure sensor

Patent Number: 8109250
Publication Date: 2012-02-07
Inventors: Ramond, Alain; Goretti, Sandro

A glow plug includes: a tubular body (2) having at one of its ends a plug head as well as a fixing zone including elements (12, 13) for being fixed in a bore, an arm (4) mounted on the body (2) of the plug at the end opposite to the plug head, and a pressure sensor (8) sealingly insulated from the corresponding cylinder. The arm (4) is fixed to an elastically deformable tubular zone (17) designed to project inside the cylinder. The pressure ...

Valve control for a gas exchange valve in an internal combustion engine

Patent Number: 8109249
Publication Date: 2012-02-07
Inventor: König, Nikolaus

A valve control for a gas exchange valve of an internal combustion engine includes at least one spring element for preloading the valve in an end position and a fixing device for the releasable fixing of the valve. The spring element in a moveable insert, which by means of an actuation device is adjustable in actuation direction of the valve between an end position close to the valve disc and an end position far from the valve disc for adjusting a preload applied on the valve by the spring ...

Valve lifter and surface treatment method thereof

Patent Number: 8109248
Publication Date: 2012-02-07
Inventors: Lyo, In Woong; Kim, Woong; Choi, Sung Moom; An, Jeong Uk; Kim, Hyung Ick; Ahn, Seung Gyun; Baek, Hong Kil; Jung, Jin Won

The present invention provides a valve lifter, including a buffer layer, a Me diamond-like carbon layer having a thickness of 0.3˜0.6 μm, and a diamond-like carbon layer having a thickness of 1˜1.5 μm and a SP3 bonding fraction of 60˜70%, which are sequentially formed on a base body which is subjected to carbonitriding treatment. The valve lifter can exhibit superior low-friction characteristics and wear ...

Wear resistant camshaft and follower material

Patent Number: 8109247
Publication Date: 2012-02-07
Inventors: Tung, Simon Chin-Yu; Wakade, Shekhar G.

A materials combination for a camshaft and follower of an engine valve train provides excellent wear resistance. The camshaft or camshaft lobes are made from a malleable cast iron and the cam followers are made from a carbonitrided 52100 or 4130 steel to provide excellent wear resistance equivalent to diamond-like coatings at greatly reduced ...

Camshaft damping mechanism and method of assembly

Patent Number: 8109246
Publication Date: 2012-02-07
Inventors: Hayman, Alan W.; Gallon, Robert Jack; McAlpine, Robert S; Baker, Rodney E.

A camshaft damping mechanism may include first and second housing members and a biasing member. The first housing member may be engaged with a camshaft. The second housing member may be slidably coupled to the first housing member and may abut an engine structure. The biasing member may be retained axially between the first and second housing members and may force the first housing member in an outward axial direction from the second housing ...

Variable valve apparatus

Patent Number: 8109245
Publication Date: 2012-02-07
Inventor: Tateno, Manabu

A drive cam opens or closes an intake valve via a variable mechanism, a split-type rocking cam arm, and a valve actuating mechanism. The variable mechanism varies a position of an intermediate roller corresponding to a rotating angle of a control shaft, thereby variably setting a lift amount of the intake valve. The split-type rocking cam arm includes an input arm and an output arm, and a connection selection mechanism is disposed between the arms. When the arms are connected together, the ...

Crankdisk bearing alternatives for the Waissi type opposed piston internal combustion engine

Patent Number: 8109244
Publication Date: 2012-02-07
Inventor: Waissi, Gary Ray Robert

An improvement to the Waissi type opposed piston internal combustion engine is proposed. The engine has at least one pair of aligned and opposed cylinders with one reciprocating double-headed piston assembly in each cylinder pair. The reciprocating motion of the piston is transmitted to the driveshaft by a rotating crankdisk, which is rigidly and off-centered mounted to the driveshaft. The high friction metal to metal contact between the crankdisk and the piston contact wall is replaced by ...

Spark ignition type internal combustion engine

Patent Number: 8109243
Publication Date: 2012-02-07
Inventors: Kamiyama, Eiichi; Akihisa, Daisuke

An internal combustion engine provided with a variable compression ratio mechanism able to change a mechanical compression ratio and a variable valve timing mechanism able to individually control the opening timing and closing timing of the intake valve. At the time of engine low load operation, the maximum expansion ratio is obtained by making the mechanical compression ratio maximum and, while the mechanical compression ratio is made maximum, the opening timing of the intake valve is ...

Multi-thermostat engine cooling system

Patent Number: 8109242
Publication Date: 2012-02-07
Inventor: Deivasigamani, Sridhar

A cooling system for an engine is disclosed. The cooling system may have a pump driven by the engine to pressurize coolant, a single heat exchanger configured to cool pressurized coolant, and an aftercooler configured to transfer heat from air entering the engine to pressurized coolant. The cooling system may also have a multi-thermostat arrangement configured to always direct at least a portion of the pressurized coolant from the pump through the aftercooler, and selectively direct ...

Diesel engine system with exhaust gas recirculation

Patent Number: 8104457
Publication Date: 2012-01-31
Inventors: Endo, Hiroyuki; Ide, Kazunari; Sato, Shinichi; Okajima, Akihide

A diesel engine system includes a diesel engine, a throttle valve, an EGR (Exhaust Gas Recirculation) path, an EGR valve and a controller. The throttle valve controls a flow rate of intake air to the diesel engine. Exhaust gas is recirculated along the EGR path from an exhaust port to an intake port of the diesel engine. The EGR valve controls a flow rate of the exhaust gas. The controller controls the throttle valve and the EGR valve such that an opening of the throttle valve decreases and ...

Method and arrangement for exhaust-gas recirculation in an internal combustion engine

Patent Number: 8104456
Publication Date: 2012-01-31
Inventor: Yacoub, Yasser Mohamed sayed

A system and method are disclosed for providing exhaust-gas recirculation in an internal combustion engine that has an exhaust-gas turbocharger. The exhaust gas to be recirculated is collected from the exhaust line downstream of a turbine of the turbocharger, passed through a condensate separator, and supplied into the intake line upstream of the compressor. The condensate is filtered, collected in a reservoir, and pumped to an injection device coupled to the engine intake at a location ...

Passing type fuel reformer

Patent Number: 8104455
Publication Date: 2012-01-31
Inventors: Kitajima, Shizuo; Watanabe, Takashi; Sekine, Noriya

An object of the present invention is to provide a passing type fuel reformer which can reform fuel fed into an engine so as to aim at further enhancing the improvement effect of fuel consumption, and which can be simply and surely installed in the vicinity of a fuel tank. Spherical particles (1c) are charged at a filling rate of not less than 90% in a cylindrical body (1) which is formed therein with through-holes at a rate of opening area of not less than 50%, the ...

Method for fuel vapor canister purging

Patent Number: 8104454
Publication Date: 2012-01-31
Inventors: Schondorf, Steven; Watson, Tom

A method of controlling fuel vapor purging in a hybrid electric vehicle capable of selectively operating an engine is disclosed. In one example, the method includes initiating purging in response to an amount of liquid fuel residing in a fuel tank of the hybrid electric vehicle and a duration since the previous fuel tank filling ...

Evaporated fuel treating apparatus and method of treating evaporated fuel

Patent Number: 8104453
Publication Date: 2012-01-31
Inventor: Kobayashi, Masahide

An evaporated fuel treating apparatus and method of treating evaporated fuel, that can re-gasify adsorbed fuel within a canister and supply it to an engine, are obtained. A compressor, a first control valve, a storage container and a second control valve are provided at a supply delivery piping that communicates a canister with an engine air intake tube, in that order from the canister side. By driving the compressor, vapor within the canister is fed to the storage container, canister ...

Method for carrying out a high-pressure start of an internal combustion engine, control facility and internal combustion engine

Patent Number: 8104452
Publication Date: 2012-01-31
Inventors: Cwielong, Martin; Chapuis, Benoit; Wiese, Matthias; Bretl, Martin

In known methods for carrying out a high-pressure start of an internal combustion engine, inconvenient starting behavior can sometimes occur. In a method for carrying out a high-pressure start of an internal combustion engine (1), a high-pressure pump (22) is used to feed fuel from a fuel tank (17) to a pressure accumulator (20) and a pressure adjuster (23) is used to control the pressure in the pressure accumulator (20), wherein the high-pressure ...

Fuel injection device having an improved electrical plug and socket connection

Patent Number: 8104451
Publication Date: 2012-01-31
Inventor: Schmieder, Dietmar

A fuel injection device for injecting fuel includes an electrical-plug-and-socket connection configured as a modular component. The electrical-plug-and-socket connection includes an electric line region and exactly one one-piece plug contact molding. The plug contact molding surrounds the electric line region, and the plug contact molding forms a part of the outer geometry of the fuel injection ...

Backwards injected engine

Patent Number: 8104450
Publication Date: 2012-01-31
Inventor: Gentile, Francis X.

Fuel is injected into and through the exhaust port and into the cylinder of the piston engine during the time when the flow is reversed from the normally expected flow. The engine is able to operate with some or all of its fuel injected backwards of conventional expectations. In another embodiment the fuel is injected with solid stream injector sprays directed against exhaust valves and ports and deflected into the piston cylinder against the flow of normally aspirated or supercharged ...

Water reduction mechanism for an internal combustion engine

Patent Number: 8104449
Publication Date: 2012-01-31
Inventors: Throop, Medville Jay; Denlinger, Adam; Basu, Amiyo K

A system for an engine includes an engine block having a cylinder, an oil delivery system including an oil reservoir at least partially enclosing an oil emulsion and providing lubricating oil to at least one cylinder, and a controller configured to adjust the heat delivered to the engine via a heat adjustment mechanism in response to a concentration of water in the oil ...

Bolt fastening structure for internal combustion engine, and engine incorporating same

Patent Number: 8104448
Publication Date: 2012-01-31
Inventors: Fukuzawa, Sumiko; Kuribara, Hiroshi; Kamiya, Mitsuyoshi; Ueda, Shingo

A bolt fastening structure for an internal combustion engine includes bolt fitting holes formed in a cylinder of the engine. An inner wall of a top portion of a crankcase includes boss portions having openings, as an extension to the corresponding bolt fitting holes, with internal threads formed therein. The crankcase further includes hollow recesses formed thereon between the boss portions and crankshaft rotational support portions. Fastening bolts, each having an external thread formed at ...

Method for the production of a piston for internal combustion engines and piston for an internal combustion engine

Patent Number: 8104447
Publication Date: 2012-01-31
Inventors: Garcia, Joao Lester; Furquim, Heraldo Carlos

A method for producing a piston for internal combustion engines includes the following steps: a first part is pre-fabricated by hot forging and a recess which has an undercut is formed in the first part during pre-fabrication by forming on the first part a projection, to which projection a lateral force is applied to form the undercut; a second part is pre-fabricated by hot forging and a projection is formed on this second part whose dimensions are matched to the dimensions of the recess; ...

Engine with carburetor mounted on an insulator

Patent Number: 8104446
Publication Date: 2012-01-31
Inventors: Shimazaki, Takayoshi; Takeshima, Syouta

Screw holes are provided on a contacting surface of an insulator so as to enable a carburetor to be mounted on the insulator at a plurality of positions rotated about an axial center of an intake hole. The insulator is mounted on a cylinder at a predetermined position while the carburetor is mounted on the insulator by inserting bolts for mounting the carburetor into the screw holes through through holes of the carburetor. Accordingly, the carburetor can be mounted at a plurality of ...

Spark plug and cylinder head

Patent Number: 8104445
Publication Date: 2012-01-31
Inventor: Seeger, Peter

A spark plug comprises a spark plug body, which carries two electrodes bordering a spark gap at one end, and exhibits a nut with external thread that can rotate around the spark plug body. A cylinder head exhibits a rotational coding complementary to the rotational coding of the spark plug ...

Pre-chamber igniter having RF-aided spark initiation

Patent Number: 8104444
Publication Date: 2012-01-31
Inventor: Schultz, James M.

An igniter for an internal combustion engine is disclosed. The igniter may have a body, and a pre-combustion chamber integral with the body and having at least one orifice. The igniter may also have at least one electrode associated with the pre-combustion chamber. The at least one electrode may be configured to direct RF energy to lower an ignition breakdown voltage requirement of an air and fuel mixture in the pre-combustion chamber. The RF energy alone may be insufficient to ignite and ...

Helical cam device and method

Patent Number: 8104443
Publication Date: 2012-01-31
Inventor: Krozek, Jeffrey C.

A helical cam device for use with a wide variety of applications generally includes a first cam component, a second cam component and an axial guide. The cam components each have a helical cam track located on an axial end, so that coaxial alignment of the two cam components allows opposing cam tracks to contact and rotate against each other. The helical cam tracks, which are preferably divided into quadrant sections, are designed such that relative rotational movement between the cam ...

Mechanical roller tappet for an internal combustion engine

Patent Number: 8104442
Publication Date: 2012-01-31
Inventors: Jansen, Manfred; Geyer, Norbert; Kucht, Karsten; Radinger, Norbert; Dorn, Stefan

A mechanical roller tappet (1a, 1b) comprising a tappet housing (2a, 2b) shaped out of sheet metal, a drive roller (3) actuable by a cam (9) and an axle (5a, 5b) on which the drive roller (3) is mounted, end portions (24) of the axle (5a, 5b) being supported in axle eyes (23) of the tappet housing (2a, 2b), said tappet ...

Cam follower for a valve drive of an internal combustion engine

Patent Number: 8104441
Publication Date: 2012-01-31
Inventors: Moeck, Stephan; Kress, Michael

A cam follower for a valve drive of an internal combustion engine. The cam follower has a housing and a cam roller. The cam roller is arranged between the side walls of the housing and is mounted on a journal which bridges the side walls. The cam roller, which has an outer ring, a rolling body set and an inner ring, is a combined plain and rolling bearing. The outer ring and the inner ring are in sliding contact with one another, and the rolling body set is arranged between the inner ring ...

Continuous variable valve lift device

Patent Number: 8104440
Publication Date: 2012-01-31
Inventors: Kim, Young Nam; Kwak, Young Hong; Kwon, Ki Young; Kong, Jin Kook; Lee, Eun Ho; Woo, Soo Hyung

The CVVL device includes a rocking cam having a rolling face contacting a rocker arm is formed to press the rocker arm when pivoted, a rocking roller, which is disposed above the drive cam and rolls on an outer circumference of the drive cam, a control apparatus, which changes a position of the rocking roller rolling on the outer circumference of the drive cam; and a rocking apparatus, which pivots the rocking cam according to a position of the rocking roller such that a position where the ...

Camshaft adjuster

Patent Number: 8104439
Publication Date: 2012-01-31
Inventors: Kohrs, Mike; Schafer, Jens

Traditional camshaft adjusters are connected to a lubricant circuit of an internal combustion engine. Lubricant flows which are too large flood the drive of the camshaft adjuster, which leads to needless churning losses in the drive and needless losses of the pump capacity of the lubricant for other structural components of the internal combustion engine. According to the invention, a flow element (59), which includes a throttle element or screen in the flow channel (26), is ...

Air intake porting for a two stroke engine

Patent Number: 8104438
Publication Date: 2012-01-31
Inventors: Chrisman, Bruce M.; Coleman, Randy

A two stroke engine of a particular configuration can have its power output increased by running bigger pistons and using ports in the piston skirt through which to conduct compressed air within the skirt through short passages in the cylinder housing that conduct the air from within the skirt to above the piston. As a result a larger piston can be used for the same spacing and opening size in the block to save the need to redesign the block and the crankshaft. A position adjuster for the ...

Electromechanical device for controlling a variable compression ratio engine

Patent Number: 8104437
Publication Date: 2012-01-31
Inventor: Rabhi, Vianney

An electromechanical device (800) which can be used to control the compression ratio of a variable compression ratio engine, includes mechanical elements for transmitting movement (801) between at least one electric engine (802) and at least one control rod (20) of a control jack (8) of a control device (12) for adjusting the vertical position of a control rack (7) of the variable compression ratio ...

Quasi free piston engine

Patent Number: 8104436
Publication Date: 2012-01-31
Inventor: Gray, Jr., Charles L.

A quasi free piston engine uses, a small, lightweight crankshaft to connect the piston assemblies of the free piston engine with a flywheel. While most of the power output from the combustion pistons is extracted by pumping pistons as hydraulic power, the small crankshaft and flywheel ensure exact TDC position of the combustion pistons in operation, and provide a rotating means to drive combustion cylinder intake and exhaust valves. Flywheel speed may be monitored to provide feedback on ...

Cooling fan control

Patent Number: 8104435
Publication Date: 2012-01-31
Inventors: Gale, Allan Roy; Schwartz, William Samuel; Karanth, Dinakara; Parks, Steven James; O'Donohue, Garrett

Methods and systems are provided for reducing aerodynamic drag on a moving vehicle. One example method comprises, during a first vehicle moving condition, operating the cooling fan, and during a second vehicle moving condition, selectively applying a braking torque on the ...

Exhaust gas valve

Patent Number: 8100118
Publication Date: 2012-01-24
Inventor: Sudmanns, Hans

The invention relates to an exhaust gas line for exhaust gas from at least one cylinder of an internal combustion engine, having at least one collecting housing (1) with a connection to an exhaust gas recirculation system (2). The collecting housing (1) is designed as a section of the exhaust gas line for the internal combustion ...

Method and system for controlling engine exhaust

Patent Number: 8100117
Publication Date: 2012-01-24
Inventors: Riegger, John Christopher; Penkevich, Steven Paul; Yamada, Shuya Shark

An engine having one of a plurality of exhaust valves in each cylinder that may be deactivated is disclosed. In one example, one exhaust valve of each cylinder is deactivated in response to engine speed. The engine may have improved engine torque at low engine speeds and reduced time to torque (e.g., turbo ...

Diesel emission reduction using internal exhaust gas recirculation

Patent Number: 8100116
Publication Date: 2012-01-24
Inventors: He, Xin; Durrett, Russell P.

A method for controlling combustion in a direct-injection diesel engine includes monitoring a crankshaft rotational position of a cylinder of the engine, monitoring an engine load, determining an intake stroke within the cylinder based upon the crankshaft rotational position, and when the engine load is less than a threshold engine load, opening an exhaust valve for the cylinder during a portion of the intake ...

Method for operating a spark ignition engine

Patent Number: 8100115
Publication Date: 2012-01-24
Inventor: Koch, Thomas

In a method for operating a spark ignition engine, wherein the inlet valves of the spark ignition engine are closed very early or very late, and a combustion air flow which is supplied to the spark ignition engine is compressed by means of a charger, and, under full load operation, the inlet valves are closed either early or late to avoid knocking of the engine, a partial flow of re-circulated exhaust gas is supplied to the combustion air flow supplied to the engine also during full load ...

Fuel vaporizer for fuel injected engines

Patent Number: 8100114
Publication Date: 2012-01-24
Inventor: Rowley, Gerald W.

Free heat from an exhaust manifold of an internal combustion engine or an electric heater supplies heat to a vaporizer. Gasoline is converted from fluid to vapor in the vaporizer and sent directly to the fuel injectors. Water fog may be added to the air intake manifold. One embodiment adds a catalyst to the vaporizer to convert gasoline to propane vapor. Fuel efficiency from 30 to 43 miles per gallon has been ...

Fuel pump layout structure in motorcycle

Patent Number: 8100113
Publication Date: 2012-01-24
Inventor: Sugiyama, Eiji

A fuel pump layout structure in a motorcycle, including an engine, a fuel pump for the supplying fuel to the engine, a frame for supporting the engine and the fuel pump, and a rear suspension damper disposed behind the frame with a swing arm being swingably suspended from the rear suspension damper, wherein said fuel pump is disposed on one side of said rear suspension ...

Fuel-supply quantity estimating apparatus and fuel injection system

Patent Number: 8100112
Publication Date: 2012-01-24
Inventors: Ishizuka, Koji; Nakata, Kenichiro

A variation waveform of fuel pressure is obtained by use of a fuel pressure sensor which detects pressure of fuel supplied to an injector. A quantity of fuel supplied to the injector is estimated based on a waveform of the detected pressure that is greater than a reference value due to a fuel pumping, in the obtained variation waveform. Especially, in a case that the fuel pressure sensor is provided to each of a plurality of injectors, it is desirable to obtain the variation waveform based ...

Fuel injection system for an internal combustion engine

Patent Number: 8100111
Publication Date: 2012-01-24
Inventor: Stingele, David

A fuel injection system of the common rail type for an internal combustion engine with two rows of cylinders is to be designed such that the deviations in the injection quantities of their injectors from one another are as slight as possible. The fuel injection system has a high-pressure pump, from which fuel flows to a first rail and a second rail which each have respective associated injectors for the two rows of cylinders. The first rail, in a structural unit with a throttle as a ...

Fuel injector with selectable intensification

Patent Number: 8100110
Publication Date: 2012-01-24
Inventors: Ibrahim, Daniel Richard; Shinogle, Ronald Dean

A system for selectively intensifying fuel for injection utilizing a fuel injector having an intensifier piston connected to a drain and a pressurized fuel source. The intensifier piston includes a control chamber co-axially positioned opposite from an intensification chamber, and a pressurization chamber co-axially positioned between the control chamber and the intensification chamber. The control chamber selectively fluidly communicates with the pressurized fuel source and the drain. The ...