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US 2003/0213336 A1Published application
Automatic transmission
AssigneeHonda Giken Kogyo Kabushiki Kaisha
InventorsYoshiaki Hori, Seiji Hamaoka
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AssigneeHonda Giken Kogyo Kabushiki Kaisha
InventorsYoshiaki Hori, Seiji Hamaoka
Estimating the term…
An automatic transmission in a power unit with a torque converter and a hydraulic clutch to be engaged and disengaged for the switching of speed-change gears. Hydraulic pressure is applied to the clutch and is increased only when operating the clutch during acceleration of a vehicle. A pressure control valve is provided at a discharge port of an oil pump for supplying hydraulic oil to the hydraulic clutch. The pressure control valve includes a valve body, a valve element is axially slidably provided in the valve body, and a spring is provided between the valve element and the valve body in a sliding direction of the valve element for adjusting a set pressure for opening/closing of the pressure control valve. The valve element is urged in its closing direction by a repulsive force applied to a stator in the torque converter.
An automatic transmission in a power unit with a torque converter and a hydraulic clutch adapted to be engaged and disengaged in switching of speed-change gears, said automatic transmission comprising:
A pressure control valve adapted to be used with an automatic transmission in a power unit with a torque converter and a hydraulic clutch for engaging and disengaging during a switching of speed-change gears, comprising:
Dependencies are inferred from the claim text.