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| Number | Title | Issue Date |
| 8181454 | Enhanced pressure balancing of an oil pump rotor for an automatic transmission A transmission includes a torque converter and an oil pump for providing fluid. The transmission has a stator shaft and a torque converter hub mounted on the stator shaft, defining an annular chamber between the stator shaft and the torque converter hub. A pump roto... | 05/22/2012 |
| 8096115 | Pump drive of an automatic transmission A pump drive of an automatic transmission with a hydrodynamic torque converter driven by a drive motor and with an oil pump driven by a pump wheel of the torque converter. The pump wheel of the torque converter is connected to a converter hub that extends from the p... | 01/17/2012 |
| 7984610 | Hydrodynamic machine The present invention relates to a hydrodynamic machine, especially a hydrodynamic retarder, including a bladed primary wheel and a bladed secondary wheel which are arranged opposite of each other axially with respect to their blade configurations such that they joi... | 07/26/2011 |
| 7827786 | Seal assembly for reducing fluid loss from transmission pump An improved seal assembly is provided that minimizes loss of transmission pump pressure by controlling fluid flow past a torque converter hub bushing to meet bushing lubrication requirements without unnecessarily diminishing pump pressure and while also minimizing f... | 11/09/2010 |
| 7818965 | Torque converter output augmentation method and apparatus A torque converter output augmentation apparatus includes a torque converter connected between an engine and a driven component in a drive train. The torque converter is connected into a hydraulic circuit along with a hydraulic fluid pressurizer, a hydraulic fluid c... | 10/26/2010 |
| 7426826 | Hydrodynamic machine, for example, hydrodynamic coupling or hydrodynamic brake The invention concerns a hydrodynamic coupling or a hydrodynamic brake with the following features: having an impeller and a turbine wheel, which together form a toroidal working chamber; the impeller sits on a dri... | 09/23/2008 |
| 7354511 | Hydraulic unit for industrial trucks A hydraulic unit for industrial trucks, comprising a motor pump unit which is directly attached to a tank, a reflux filter which has an elongate filter casing for a filtering element adapted to be introduced into the tank through an opening, a hose coupling, and an ... | 04/08/2008 |
| 7290987 | Impeller hub for torque converter A direct replacement impeller hub for the torque converter of an automatic transmission and a method of repairing an impeller assembly utilizing the replacement impeller hub to provide increased service longevity. In the present impeller hub the geometric roundness ... | 11/06/2007 |
| 7254943 | Arrangement and method for coupling an air compressor to the driving shaft of an internal combustion engine An arrangement and method for coupling an air compressor to the driving shaft of an internal combustion engine that is used as the drive engine of a vehicle, wherein the air compressor supplies a pneumatic device. The arrangement contains a controllable turbocouplin... | 08/14/2007 |
| 7114331 | Pump drive shaft with internal flow tube and method of installation A pump drive shaft for an automatic transaxle wherein the cross-sectional profile of the internal flow tube has been modified to a non-cylindrical configuration to increase the flow of transmission fluid through the pump drive shaft from the torque converter. A sele... | 10/03/2006 |
| 6993902 | Fluid coupling for mobile equipment In an assembly including a diesel engine, a fluid coupling connected to the flywheel of the diesel engine, a comminuting machine and a conveyor for feeding the comminuting machine, a fluid coupling module is common to various output power train assemblies. Slip spee... | 02/07/2006 |
| 6928810 | Hydrodynamic component A hydrodynamic component (1) comprising: two rotating blade wheels: a primary blade wheel (3) and a secondary blade wheel (4), which together form at least one torus-shaped working chamber (5Z); at least inlet (10) for service fluid leadi... | 08/16/2005 |
| 6769248 | Fluid coupling for mobile equipment In an assembly including a diesel engine, a fluid coupling connected to the flywheel of the diesel engine, a comminuting machine and a conveyor for feeding the comminuting machine, a fluid coupling module is common to various output power train assemblies. Slip spee... | 08/03/2004 |
| 6408621 | Fluid coupling assembly A fluid coupling assembly 10 is provided and includes a stationary housing 12, which h forms a first chamber 14; an inner housing or output member 16 which is rotatably disposed within chamber 14 and which forms a second chamber 18; and a rotor or drive m... | 06/25/2002 |
| 6357228 | Sleeveless support of pump gear drive The present invention provides a torque converter support for an automatic transmission which uses a driving gear of a fluid pump to support the torque converter. The driving gear is supported by a journal area of the fluid pump. The torque converter impe... | 03/19/2002 |
| 5799492 | Hydrodynamic unit, particularly for the transmission line of a motor vehicle A hydrodynamic unit, particularly for the transmission line of a motor vehicle, which, in addition to a main pump wheel, also has an auxiliary pump wheel which can be frictionally connected with the main pump wheel in the circumferential direction via a c... | 09/01/1998 |
| 5720167 | Rotating pump seal A rotating pump seal is interposed between a transmission's pump and pump body bushing. The seal includes a predetermined flow area allowing a sufficient amount of fluid flow to lubricate the bushing while restricting excessive flow.... | 02/24/1998 |
| 5400884 | Torque convertor A torque convertor includes a torque convertor body and a power disconnecting clutch. The torque convertor body is connected to an input-side member for transmitting power to the power disconnecting clutch. The power disconnecting clutch has a drive-side ... | 03/28/1995 |
| 5046326 | Transport refrigeration system A transport refrigeration system having an evaporator, an evaporator blower, a variable speed drive for the evaporator blower, a refrigerant compressor, and a prime mover for the compressor which includes an internal combustion engine having an output sha... | 09/10/1991 |
| 4970860 | Fluid coupling for helicopter propeller A disengageable connection between an internal combustion engine and a propeller which serves for the drive of a gyroplane. The disengageable connection is a fluid coupling which includes a controllable oil circulatory system. The fluid coupling is suppli... | 11/20/1990 |
| 4916899 | Stator shaft connection through oil pump of automatic transmission An oil pump of an automatic transmission, which comprises a casing having an oil pump gear chamber formed therein, the casing having first and second bores exposed to the oil pump gear chamber, the first and second bores being coaxially spaced from each o... | 04/17/1990 |
| 4693081 | Control system and method for controlling output type hydraulic fluid pump of automatic transmission providing increased pump output pressure with increase in engine load An automatic transmission, for a vehicle with an engine, includes a hydraulic fluid pump which supplies pressurized hydraulic fluid. The engine load is detected, and the pump output is controlled so as to increase with increase of the load on the engine. ... | 09/15/1987 |
| 4592203 | Hydro-dynamic transmissions A torque converter has a positive displacement pump (15,16) for charging and for circulating fluid for cooling purposes, which is driven at a speed equal to the difference in speed between the input and the output of the torque converter. The torque conve... | 06/03/1986 |
| 4445328 | Variable fill fluid coupling with charging liquid collector In variable fill-type fluid couplings, a driving impeller and a driven runner are coupled for joint rotation by means of a liquid medium in an active liquid chamber formed by the rotating members. The active liquid chamber is continuously bled at a select... | 05/01/1984 |
| 4444009 | Hydrodynamic torque converter A hydrodynamic torque converter which includes a booster pressure line for introducing a booster pressure into an internal hydrodynamic circuit. An inlet orifice of the booster pressure line into the circuit, arranged in a zone of the outer torus of the c... | 04/24/1984 |
| 4350011 | Pumping apparatus for fluid The disclosure concerns a pumping apparatus for working fluid, in a hydrodynamic coupling, or the like. Working fluid is stored in a sump and is to be lifted by a spinning disc to an elevated container from which the working fluid is then directed back in... | 09/21/1982 |
| 4321793 | Integrated hydraulic circuit for off highway work vehicles A pair of pumps deliver pressurized fluid to a steering control valve assembly controlling the operation of a steering cylinder. The steering control valve assembly diverts any excess of the incoming pressurized fluid to a hoist control valve assembly con... | 03/30/1982 |
| 4238929 | Arrangement to cool oil in hydraulic control system of automatic transmission for industrial vehicle The present invention relates to an arrangement to cool oil used in a hydraulic control system of an automatic transmission for an industrial vehicle. The hydraulic control system includes an operating pressure feed line, a pressure regulator valve to reg... | 12/16/1980 |
| 4203289 | Hydrodynamic control coupling A hydrodynamic control coupling having a toroidal working chamber defined by a primary bladed wheel connected with a driving motor and a secondary bladed wheel connected to the driven element; a draining device for draining working fluid from the working ... | 05/20/1980 |
| 4198818 | Primary pump drive for automatic motor vehicle transmissions A primary pump drive for automatic motor vehicle transmissions, in which the primary pump is adapted to be driven directly from the input and is arranged with its axis parallel to the input axis. The pump is constructed as an internally toothed pump and i... | 04/22/1980 |
| 4133177 | Variable fill fluid coupling control means The combination of a variable fill fluid coupling with a control means therefor is improved by providing the combination with a control means which comprises an interconnected series of a pressure transducer, an electrical controller and an electro-propor... | 01/09/1979 |
| 3965680 | Hydrokinetic device A hydrokinetic device comprising a fluid containing housing and unique relatively rotatable wheel means, including an impeller wheel connected to an input shaft and a turbine wheel connected to an output shaft. With the addition of a stator wheel the devi... | 06/29/1976 |
| 3955365 | Fluid coupled drive apparatus Drive apparatus providing input gearing with an input shaft adapted to be connected to a single-shaft gas turbine, output gearing with an output shaft for connection to a load, a fluid coupling interconnecting the input and output gearing, and fluid suppl... | 05/11/1976 |
