Engine intake structure
AssigneeKawasaki Jukogyo Kabushiki Kaisha
InventorRen Toriizuka
Life of this patent
Estimating the term…
Abstract
An intake structure of the present invention is applied to a multi-cylinder engine including an electrically controlled throttle integrally including a throttle valve configured to adjust an amount of air to be supplied to the engine and an electronic control unit configured to control the throttle valve. The engine intake structure includes: an air cleaner configured to purify the air; and an intake manifold configured to distribute the air purified by the air cleaner to an intake port of each cylinder of the multi-cylinder engine. The electrically controlled throttle is attached to the intake manifold such that the electronic control unit is separated outward in a radial direction of an engine rotation shaft.
Claims18
An engine intake structure comprising:
- an electrically controlled throttle including:
- a throttle body having an intake passage formed therein;
- a throttle valve configured to adjust an amount of air to be supplied to a multi-cylinder engine, the throttle valve being disposed inside the throttle body;
- and
- an electronic control unit configured to control the throttle valve, the electronic control unit being attached to an outer surface of the throttle body;
- the throttle valve and the electronic control unit being integrated with the throttle body;
- an air cleaner configured to purify the air;
- and
- an intake manifold configured to distribute the air purified by the air cleaner to an intake port of each cylinder of the multi-cylinder engine, wherein
- the electrically controlled throttle is attached to the intake manifold such that the electronic control unit is positioned away from the intake manifold in a radial direction of an engine rotation shaft, and
- the electrically controlled throttle is arranged such that a part of the electrically controlled throttle that protrudes radially outward of the engine rotation shaft is disposed in an area opposite from the engine rotation shaft with respect of a throttle body of the electrically controlled throttle.
An engine intake structure comprising:
- an electrically controlled throttle integrally including a throttle valve configured to adjust an amount of air to be supplied to a multi-cylinder engine and an electronic control unit configured to control the throttle valve;
- an air cleaner configured to purify the air;
- and
- an intake manifold configured to distribute the air purified by the air cleaner to an intake port of each cylinder of the multi-cylinder engine, wherein
- the electrically controlled throttle is coupled to the intake manifold by a fastener provided along a flow direction of the air, and
- an intake passage connecting the air cleaner and the electrically controlled throttle extends in a curved manner so as to bypass the fastener.
An engine intake structure comprising:
- an electrically controlled throttle integrally including a throttle valve configured to adjust an amount of air to be supplied to a multi-cylinder engine and an electronic control unit configured to control the throttle valve;
- an air cleaner configured to purify the air;
- and
- an intake manifold configured to distribute the air purified by the air cleaner to an intake port of each cylinder of the multi-cylinder engine, wherein
- the electrically controlled throttle is attached to the intake manifold such that the electronic control unit is positioned away from the intake manifold in a radial direction of an engine rotation shaft, and
- the electrically controlled throttle is disposed inside a cover of a fuel pump in the radial direction of the engine rotation shaft.
An engine intake structure comprising:
- an electrically controlled throttle integrally including a throttle valve configured to adjust an amount of air to be supplied to a multi-cylinder engine and an electronic control unit configured to control the throttle valve;
- an air cleaner configured to purify the air;
- and
- an intake manifold configured to distribute the air purified by the air cleaner to an intake port of each cylinder of the multi-cylinder engine, wherein
- an electric cable connecting the electrically controlled throttle and a fuel nozzle is disposed along the intake manifold, and
- the intake manifold is formed with:
- a first groove in which the electric cable is arranged;
- or
- a second groove in which a grip member gripping an electric cable connecting the electrically controlled throttle and a fuel nozzle is disposed.
Dependencies are inferred from the claim text.