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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Kyushima; Tatsuo
Address:
Toyota, JP
No. of patents:
23
Patents:












Patent Number Title Of Patent Date Issued
4817472 Transmission control system with protection against excessively high speed downshifting April 4, 1989
In an automatic transmission control system incorporating the conventional line, throttle, and governor fluid pressure regulation valves, mannual selector valve, and shift valves such as 1/2, 2/3, and 3/4 shift valves, there is further incorporated a modulator fluid pressure control valv
4768633 Torque converter lock up clutch rotary shock absorber with inner plate element location construc September 6, 1988
A rotary power transmission device including a hydraulic torque converter which transmits rotary power between coaxial power input and power output shafts, and a lock up clutch system which also transmits rotary power between the power input and power output shafts, wherein the lock up
4676123 Automobile transmission with output shaft parallel to crank shaft and parking gear fixed to the June 30, 1987
An improved transverse-mount type driving device for an automobile, having an output gear provided between last and intermediate planetary gear units of an auxiliary speed change gear assembly, the output gear meshing with a driven gear on a transmission shaft which extends parallel with
4480499 Driving device for automobiles November 6, 1984
An improved transverse-mount type driving device for an automobile, having an output gear provided between last and intermediate planetary gear units of an auxiliary speed change gear assembly, the output gear meshing with a driven gear on a transmission shaft which extends parallel with
4441594 Fluid type torque converter apparatus April 10, 1984
A lockup clutch of a fluid type torque converter apparatus is disposed in parallel to a fluid type torque converter and directly connects an input shaft and an output shaft to each other. The lockup clutch comprises first and second disc elements disposed midway of a drive force transmis
4440276 Torque converter lock up clutch shock absorber with pressure transmitting hole through disk elem April 3, 1984
A rotary power transmission device including a hydraulic torque converter which transmits rotary power between coaxial power input and power output shafts, and a lock up clutch system which also transmits rotary power between the power input and power output shafts, wherein the lock up
4437358 Transmission with torque converter and lock up clutch with lubrication and pressurization system March 20, 1984
An automatic transmission includes: a gear transmission mechanism which can provide several speed stages according to selective supply of hydraulic pressures from a control system; a hydraulic fluid pump; a torque converter incorporating a lock up clutch which is selectively engaged or
4428259 Fail safe automatic transmission lock up clutch control system January 31, 1984
An automatic transmission includes a gear transmission mechanism with first and second friction mechanisms which are alternatively engaged by alternative supply of first and second actuating pressures thereto when the highest speed stage and the next to highest speed stage are altern
4428258 Transmission control system with modified back pressure accumulator January 31, 1984
A fluid pressure control system for controlling an automatic transmission which includes a gear transmission mechanism and several fluid pressure actuated friction engaging mechanisms, selective engagement of which provides various speed stages from the gear transmission mechanism. A lin
4427098 Torque transmission apparatus including direct coupling clutch and fluid-type torque converter January 24, 1984
In a torque transmission apparatus of an automatic transmission for an automotive vehicle, a direct coupling clutch is provided in parallel to a fluid type torque converter. The direct coupling clutch comprises; a first clutch element connected to an input shaft or an output shaft; a fir
4426891 Radially outward return spring for transmission brake January 24, 1984
A transmission has a gear mechanism which is selected between speeds by selective engagement of a brake including first and second friction plate elements. A piston is driven by pressure in a fluid pressure chamber so as selectively to squeeze the friction plate elements together and eng
4406181 Automatic transmission control system with holddown device September 27, 1983
An automatic transmission includes a gear transmission mechanism with several friction engaging mechanisms. Selective supply of actuating pressure to these mechanisms selectively provides different speed stages from the transmission, including a directly connected speed stage and an
4406179 Apparatus for preloading an antifriction bearing in an automatic transmission September 27, 1983
In a transmission for automobiles including; a housing containing planetary gear units respectively having at least three revolving elements, such as ring gears, sun gears and a carrier; an input shaft connected to one of the revolving elements of the planetary gear units, and an output
4399895 Torque converter lock up clutch rotary damper with reinforcing lips August 23, 1983
A rotary power transmission device includes a torque converter, which transmits rotary power between coaxial power input and power output shafts, and a lock up clutch between the power input and power output shafts, which includes first and second plate elements which can be biased t
4394827 Transmission control system with modified friction engaging mechanism actuating pressure July 26, 1983
A fluid pressure control system for controlling an automatic transmission which includes a gear transmission mechanism and several fluid pressure actuated friction engaging mechanisms, selective engagement of which provides various speed stages from the gear transmission mechanism. A lin
4380179 Engagement device in automatic transmission April 19, 1983
In an automatic transmission including sun gears, ring gears and a carrier for rotatably supporting a pinion on a shaft, the pinion being adapted to mesh with the sun gear and the ring gear; the improvements comprising a hub extending radially outside of the ring gear and having a fricti
4364285 Automatic transmission December 21, 1982
An automatic transmission, including a transmission casing and a transaxle casing formed with connecting flanges and joined together by means of these connecting flanges, with a torque converter and a differential gear mechanism being mounted in the transaxle case, while a hydraulic flui
4356742 Transmission control system providing overlapped shift line combinations November 2, 1982
A fluid pressure control system for controlling an automatic transmission, which includes a gear transmission mechanism and several fluid pressure actuated friction engaging mechanisms, and which is shifted to various speed stages including an overdrive speed stage, a directly connected
4315443 Transmission for use in motor vehicle February 16, 1982
A transmission for a motor vehicle including a fluid-type torque converter coaxial with and operatively connected to an auxiliary speed change gear assembly which includes coaxially arranged, operatively coupled underdrive and overdrive units and an output driving gear, the underdrive an
4280374 Transmission for use in motor vehicle July 28, 1981
A transmission for use in a motor vehicle having a torque converter; an auxiliary speed change-gear assembly coaxial with the torque converter; an intermediate shaft extending through the auxiliary speed change-gear assembly; a countershaft extending in parallel to the intermediate shaft
4263823 Compact transmission for use in automobiles having means for counterbalancing internal thrusts April 28, 1981
A vehicular transmission including an underdrive unit and an overdrive unit each having at least one planetary gear system including a sun gear, ring gear, planetary pinions and planetary carrier wherein an axial extension member integral with the output gear of the underdrive unit and a
4258586 Compact transmission for use in automobiles March 31, 1981
A vehicular transmission including an underdrive unit and an overdrive unit operatively interconnected by an intermediate shaft, each having at least one planetary gear system including a sun gear, a ring gear, planetary pinions and a planetary carrier wherein an extension member integra
4226200 Automatic transmission casing October 7, 1980
An automatic transmission for vehicles including a fluid torque converter, a change-over gear mechanism, and an oil pressure control means, wherein the oil pressure control means is substantially composed of a grooved portion formed integrally with the housing of the transmission, a firs










 
 
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