An intake air control device (20) for internal combustion engines includes a valve member (10, 10A) disposed within an intake air channel (3) of the internal combustion engine. The valve member is operable to open and close the intake air channel. An orifi...

An engine cooling system controls a cooling degree of an engine 1 according to an operating condition thereof by circulating cooling water through the engine. This system is provided with a water temperature sensor 31 for detecting a cooling water temperat...

A valve apparatus comprising a case (11) for accommodating a valve (28) and a body (2) forming a fluid passage as separate constituent elements, and the case (11) is fixed and disposed in the body (2).

In order to provide a filter structure for a canister in which dust or the like in air is prevented from sticking to the filter and being distributed over the entire surface thereof, and accordingly, the filter can hardly clogging so as to prevent lowering...

A fuel pump (50) may be mounted on a set plate (30). A canister (80) also may be mounted on the set plate (30). A mounting hole (12) may be provided in a fuel tank (10) and is adapted to receive the set plate (30). The fuel pump (50) and the canister (80) ...

A fuel supply pipe (43) is constituted of a fixed fuel supply pipe (43b) made of a metal such as stainless steel and connection fuel supply pipes (43a, 43c) made of, e.g., resin. The volume resistivities of the connection fuel supply pipes (43a, 43c) range...

A fuel supply apparatus 12 includes a throttle body 26 including an air-intake passage 24a and a throttle valve 25 and fuel supplying devices; a fuel pump 61, a fuel filter 62, a pressure regulator 63, and an electric control unit 64. Those fuel supplying ...