Patents Assigned to Toyota Motor Corp.
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Patent number: 6371070Abstract: An inertia charge intake manifold is associated with an internal combustion engine having a plurality of cylinders. The intake manifold includes a plurality of elongated separate branch pipes each corresponding to a respective one of the cylinders. The intake manifold also includes a common flange for connecting a first end of each branch pipe to the internal combustion engine. The common flange has a first surface attached to the internal combustion engine. Further, the intake manifold includes a surge tank to which a second end of each branch pipe is connected. The common flange, the surge tank and each branch pipe are made of a hard thermoplastic synthetic resin. The common flange is integrally connected to the surge tank.Type: GrantFiled: July 20, 2001Date of Patent: April 16, 2002Assignees: Daihatsu Motor Co., Ltd., Toyota Motor Corp., G. P. Daikyo CorporationInventors: Hiroshi Munetoki, Yoshihiro Kimoto, Mikio Nakashima, Nobuyuki Homi, Ryuji Takashina, Toshiki Miyachi, Takeharu Suga
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Patent number: 6283078Abstract: An inertia charge intake manifold is associated with an internal combustion engine having a plurality of cylinders. The intake manifold includes a plurality of elongated separate branch pipes each corresponding to a respective one of the cylinders. The intake manifold also includes a common flange for connecting a first end of each branch pipe to the internal combustion engine. The common flange has a first surface attached to the internal combustion engine. Further, the intake manifold includes a surge tank to which a second end of each branch pipe is connected. The common flange, the surge tank and each branch pipe are made of a hard thermoplastic synthetic resin. The common flange is integrally connected to the surge tank.Type: GrantFiled: August 31, 1999Date of Patent: September 4, 2001Assignees: Daihatsu Motor Co. Ltd., Toyota Motor Corp., Daikyo Co. Ltd.Inventors: Hiroshi Munetoki, Yoshihiro Kimoto, Mikio Nakashima, Nobuyuki Homi, Ryuji Takashina, Toshiki Miyachi, Takeharu Suga
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Patent number: 4753132Abstract: A hydraulic servo for friction coupling devices of automatic transmissions, the hydraulic servo comprising: an annular drum including outer and inner cylinders and a side wall connecting the two cylinders together and mounted fixedly or rotatably within an automatic transmission case; an intermediate cylinder mounted concentrically in a predetermined position between the outer and inner cylinders of the drum; a return biasing means located between the intermediate and inner cylinders; and a connecting member securely connecting the return biasing means to a piston.Type: GrantFiled: April 29, 1985Date of Patent: June 28, 1988Assignees: Aisin-Warner Ltd., Toyota Motor Corp.Inventors: Koji Sumiya, Koji Kobayashi, Haruki Takemoto, Seitoku Kubo, Yutaka Taga, Kazuaki Watanabe
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Patent number: 4738159Abstract: A four-wheel drive automatic transmission primarily consisting of an automatic transmission having a transmission case, a transmission gear mounted in the transmission case and an automatic transmission hydraulic control unit including a transmission valve body secured to the bottom surface of the transmission case; and a four-wheel drive transfer having a transfer case, a transfer unit mounted in the transfer case and a transfer hydraulic control unit including a transfer valve body secured to the bottom surface of the transfer case. The automatic transmission hydraulic control unit and the transfer hydraulic control unit communicate with each other by oil passages cast in the transmission case and in the transfer case.Type: GrantFiled: February 5, 1987Date of Patent: April 19, 1988Assignees: Aisin-Warner Ltd., Toyota Motor Corp.Inventors: Kozo Kato, Yoichi Hayakawa, Yutaka Taga, Shinya Nakamura
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Patent number: 4646890Abstract: A one-way clutch biasing means for an automatic transmission, comprising: an inner spline formed on a one-way clutch retaining member; an outer spline formed on the outer race of the one-way clutch and loosely meshed with the inner spline; and a resilient member fitted between a side wall surface of the inner spline of the retaining member and an opposing side wall surface of the outer spline of the outer race to urge the outer race constantly in the locking direction of the one-way clutch.Type: GrantFiled: October 10, 1984Date of Patent: March 3, 1987Assignees: Aisin-Warner Ltd, Toyota Motor Corp.Inventors: Yoshihiro Yamada, Mutsumi Kawamoto, Tatsuya Iwatsuki, Koujiro Kuramochi
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Patent number: 4597677Abstract: A leaf-type foil thrust bearing, such as may be employed in a high-speed, light-load application, particularly, as a thrust bearing for a turbo charger, having a significantly reduced manufacturing cost. A plurality of recesses are formed in a thrust surface of a seat member disposed opposite the bearing surface of a rotating bearing member. The recesses gradually become shallower from their forward edges to the rearward edges in the direction of rotation of the rotating members. Corrugated foils are disposed in each of the recesses, with the corrugation height of each of the foils being constant. Top foils cover the respective corrugated foils, and each of the top foils has a forward edge attached to the thrust surface adjacent the forward edges of each of the recesses.Type: GrantFiled: October 11, 1985Date of Patent: July 1, 1986Assignees: Taiho Kogyo Co., Toyota Motor Corp.Inventors: Yoshiyuki Hagiwara, Teru Morishita
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Patent number: 4517030Abstract: This invention discloses a process for activating steel surface prior to phosphating treatment wherein the steel surface is cleaned, the cleaned steel surface is then treated with an aqueous activating solution containing titanium and pyrophosphate ion, and thereafter the steel surface is treated with a phosphating solution, characterized in that magnesium ion is included in said aqueous activating solution in order to suppress formation of an inactive film on said steel surface due to the presence of said pyrophosphate ion, and then said steel surface is treated with the resulting aqueous activating solution.Type: GrantFiled: August 6, 1984Date of Patent: May 14, 1985Assignees: Toyota Motor Corp., Nihon Parkerizing Co.Inventors: Tsukasa Yamamoto, Asao Mochizuki, Hiroshi Okita, Toshi Miyawaki, Yoshiji Shirogane, Kazuhiko Mori