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Hydraulic control device for hybrid transmission

Patent Number: 8439179
Publication Date: 2013-05-14
Inventors: ;

A hydraulic control device for a hybrid transmission is designed such that the cooling and lubrication oil line of the system are in oil communication even before the main oil line pressure reaches the set pressure of the overflow valve, so as to lubricate the transmission as soon as possible. The hybrid transmission design further provides an overpressure protection for the cooler. The hybrid transmission further uses a proportional pressure reducing valve to control the lock-up clutch, ...

Proximity sensor enabled mechanical power coupling system

Patent Number: 8439178
Publication Date: 2013-05-14
Inventor:

Systems and components for providing or receiving a mechanical power service through a mechanical power coupling system. A mechanical power service switch is provided for selectively communicating the mechanical power service between a first mechanical power service communicating device, such as a host or other mechanical power service source and a first mechanical power service communicating device, such as a mechanical power service consumer. The mechanical power service switch is ...

Wrap spring clutch coupling with quick release feature

Patent Number: 8439177
Publication Date: 2013-05-14
Inventor:

A rotational coupling is provided. The coupling includes first and second hubs disposed about an axis of rotation. The coupling further includes a wrap spring engaging the first hub and disposed radially outwardly of the second hub. The wrap spring is configured to couple the first and second hubs together for rotation during rotation of the first hub in a first rotational direction. The coupling may include one or more shoes disposed radially between the second hub and the wrap spring and ...

Coupling

Patent Number: 8439176
Publication Date: 2013-05-14
Inventor:

When, according to the invention, a coupling is provided between a driving shaft (1) and a hub (6), the shaft (1) being configured with several sets of grooves (2, 3) in which an elastic cord (4) may extend, the cord (4) in the deep track (2) will have a slight or poor engagement with the hub (6), while the cord in the low track (3) will be pressed out into firm engagement with the hub ...

Failure detecting apparatus for hydraulic circuit of gearbox

Patent Number: 8439175
Publication Date: 2013-05-14
Inventor:

A failure detecting apparatus for a hydraulic circuit of a gearbox includes an operating-state detector. The operating-state detector is configured to detect an operating state of a subject to be controlled with a control-signal pressure output from a solenoid valve. A current setting device is configured to set an electrical current supplied to a solenoid so as to close an output oil passage when a modulator valve is normal and to open the output oil passage when an open failure occurs in ...

Centrifugal clutch

Patent Number: 8434608
Publication Date: 2013-05-07
Inventor:

A centrifugal clutch (1) has a clutch drum (2) and at least one centrifugal weight (6). The centrifugal weight (6) is arranged on a carrier (5) and is radially displaceable referred to the rotational axis (8) of the centrifugal clutch (1). At least one holder (7, 27) holds the centrifugal weight (6) in at least one axial direction of the rotational axis (8) on the carrier (5). The holder (7, 27) includes at ...

Compact torque transmitting assembly

Patent Number: 8434607
Publication Date: 2013-05-07
Inventors: ; ; ; ;

A torque transmitting device for transmitting torque between a first and second members includes an annular piston that defines an axis and an apply plate translatable along the axis between an unengaged position and an engaged position. The apply plate has a first end disposed radially inward of a second end and is in contact with the piston. An apply disc is rotationally coupled to the first member and is translatable between unengaged and engaged positions. The apply disc is disposed ...

Clutch

Patent Number: 8434606
Publication Date: 2013-05-07
Inventor:

A clutch having a pressure plate (1) and a counter plate (16) is provided, with the pressure plate being displaceable by a clutch actuating mechanism such that a clutch disk can be clamped between the pressure plate and counter plate. The pressure plate is a multi-piece pressure plate having a central body (1) which includes a friction surface and on which at least one connecting element (5) is located, which protrudes beyond the friction surface and is connected ...

One-way clutch of roller type for starter of motor bike

Patent Number: 8434605
Publication Date: 2013-05-07
Inventor:

A one-way clutch of roller type comprises an outer race having pockets provided at their inner peripheries with cam surfaces, an inner race arranged in an inner diameter side of the outer race coaxially, a plurality of rollers disposed in the pockets and adapted to transmit torque between the outer race and the inner race when engaged by the cam surfaces, and accordion springs disposed in the pockets between the outer race and the rollers and having one ends secured to an axial end face of ...

Reversing transmission

Patent Number: 8434604
Publication Date: 2013-05-07
Inventor:

A reversing transmission includes a shaft, a retainer, a spacing collar, reversing members, two gears and two covers. The holder is sleeved on the shaft with spaced sliding notches formed thereon. The spacing collar is mounted on an outer surface of the retainer. The reversing members each include two spaced swing plates, with two reversed spiral teeth dented on two diagonal half surfaces of the two spaced swing plates. The reversing members slide into the sliding notches of the holder, ...

Low content control system for a dual clutch transmission

Patent Number: 8434603
Publication Date: 2013-05-07
Inventors: ; ; ;

A hydraulic control system for a dual clutch transmission includes a source of pressurized hydraulic fluid, first and second actuator control devices in downstream fluid communication with the source of pressurized hydraulic fluid, and first and second clutch control devices in downstream fluid communication with the source of pressurized hydraulic fluid. A first valve is in downstream fluid communication with the first and second actuator control devices. A second valve is in downstream ...

Torque transmission device

Patent Number: 8434602
Publication Date: 2013-05-07
Inventors: ;

A torque transfer device in the drive train of a motor vehicle for transferring torque between a drive unit and a shaft rotatable about a rotation axis, including: a hydrodynamic torque converter, which includes a converter cover, connectable to the drive unit, and which can be coupled through a pump shell to a turbine shell for torque transfer, which can be bridged by a torque converter lockup clutch for torque transfer, which comprises a piston, movable in an axial direction within a ...

Friction clutch system

Patent Number: 8430222
Publication Date: 2013-04-30
Inventors: ;

A friction clutch system mechanically couples a power source to a driven system of a vehicle while reducing the rotational inertia of the clutch system and yet still providing torsional damping within the system. In one embodiment, the friction clutch system includes a first friction disc assembly directly engaged with a second friction disc assembly. The first disc assembly may include protuberances that extend axially from a hub assembly, which in turn may include damping springs and an ...

Mechanically energized mechanical power coupling system

Patent Number: 8430221
Publication Date: 2013-04-30
Inventor:

A system for communicating a mechanical power service between mechanical power service communicating devices. A service switch is provided for selectively transferring the mechanical power service from a first mechanical power service communicating device, such as a host or other mechanical power service provider or source, to a second mechanical power service communicating device, such as an accessory device or other mechanical power service consumer. The service switch is activated to ...

Wet dual clutch transmission control system

Patent Number: 8430220
Publication Date: 2013-04-30
Inventors: ;

Pairs of variable feed solenoid valves provide fluid to a pair of input clutch actuators and a pair of inlet ports of a first or logic valve. The position of the first logic valve spool is controlled by a solenoid valve. A first pair of outlet ports of the first logic valve provide fluid to a first piston which selects two speed ratios. A second pair of outlet ports of the first logic valve provide fluid to a pair of inlet ports of a second logic valve. The position of the second logic ...

Clutch unit

Patent Number: 8424665
Publication Date: 2013-04-23
Inventors: ;

A clutch unit includes a lever-side clutch portion for controlling transmission/interruption of rotational torque to an output side with lever operation, and a brake-side clutch portion for transmitting torque input from the lever-side clutch portion to the output side and for interrupting torque reverse-input from the output side. The lever-side clutch portion includes an input-side member to which torque is input with the lever operation and claw portions extending in an axial direction ...

Friction part for a frictionally acting device

Patent Number: 8424664
Publication Date: 2013-04-23
Inventors: ;

The present invention relates to a friction part for a frictionally acting device, having an annular friction face which has an inner edge and an outer edge, wherein at least one set of grooves is provided in the friction face, which set of grooves has a first groove which extends from the inner edge or the outer edge to a branching point between the inner edge and the outer edge, and a second and third groove which extend in each case from the branching point to the other edge. According ...

Multi-plate clutch system

Patent Number: 8424662
Publication Date: 2013-04-23
Inventors: ;

A multi-plate clutch system includes: a pressure plate which is biased by a clutch spring in a direction in which driving friction plates and driven friction plates are brought into pressure contact with each other; and at least one of assist device configured to increase a pressure contact force when torque is changed for acceleration and the slipper device configured to decrease the pressure contact force when the torque is changed for deceleration. A ring member whose inner peripheral ...

Free wheel, especially for a crank CVT

Patent Number: 8424660
Publication Date: 2013-04-23
Inventor:

A free wheel, especially for a crank CVT, which has an inner ring, an outer ring that can rotate in at least one rotary direction in relation to the inner ring and is arranged radially around the inner ring, and a plurality of clamping bodies which have a head region and a foot region. The clamping bodies are arranged between the inner ring and the outer ring and can be subjected to the radially inwardly acting elastic force of a peripheral spring engaging in a spring groove, towards the ...