Aisan Kogyo Kabushiki Kaisha

Kazuhiko Nishimura

Satomi Wada

Masaki Ikeya

Shinji Kawai

Kazuhiro Yoneshige

Kunio Takagi

Yasunori Sakaue

Hiroki Endo

Hideaki Nawa

A fuel supply apparatus according to the present invention includes vapor production determining means for determining whether or not the vapor of the fuel is producible, and control means (ECU) for operating a passage resistance adjusting means of a pressure adjusting mechanism to cause increase of the pressure of the fuel supplied to an injector insomuch as the production of the vapor is inhibited when the vapor production determining means has determined a vapor producible condition.

Fuel supply apparatuses

Throttles () include a bore () defined within throttle body (). A longitudinal axis defined within the bore serves as a throttle air flow channel. Throttle shaft () extends across the air flow channel and is rotatably supported by the throttle body about a rotational axis. Throttle valve () is coupled to the throttle shaft and opens and closes the air flow channel by rotating throttle shaft and throttle valve within the bore. The throttle valve extends perpendicularly to the longitudinal axis of the bore when the throttle valve is disposed in a fully closed position. Clearance (S) is defined between a peripheral edge () of throttle valve and an inner wall of the bore when the throttle valve is in the fully closed position. The peripheral edge of the throttle valve end defines a substantially spherical surface having a radius (R) of curvature with respect to the rotational axis.

Throttle valves having spherical shaped edges

An air-fuel mixture control device controlling a combustible air-fuel mixture to be supplied to a combustion chamber of an engine This device is constructed of an injector used for fuel supply, a fuel pump, a fuel filter, a fuel pressure regulator, and an electronic control unit (ECU) which are united as an assembly with respect to a throttle body including an intake passage and a throttle valve . A memory incorporated in the ECU stores a correction value with respect to the fuel injection quantity dispersion preliminarily experimentally determined on an assembly-by-assembly basis. The ECU corrects the fuel injection quantity based on the correction value stored in the memory to control the fuel injection quantity.

Air-fuel mixture control device of engine

Growing community of inventors

Obu, Japan

Kazuhiko Nishimura