Air intake control device of fuel injection engine
AssigneeSuzuki Motor Corporation
InventorHiromi Deguchi
Life of this patent
Estimating the term…
Abstract
In an air intake control device of a fuel injection engine, a throttle body includes a cam lever rotatably mounted on a sub-throttle valve, a stopper cam for rotating a main throttle pulley, and a link mechanism for linking the cam lever and the stopper cam. When the sub-throttle valve is fully opened while a main throttle valve is closed, the rotation of the cam lever is transmitted to the stopper cam by the link mechanism, and the main throttle valve is opened at the angle required for the first idling by the rotation of the stopper cam.
Claims6
An air intake control device of a fuel injection engine including a fuel pump, an injector for injecting fuel from said fuel pump, and a throttle body in which said injector is mounted, wherein said throttle body comprises:
- a main throttle valve to be opened and closed in connection with the operation of a throttle grip by a driver;
- a sub-throttle valve to be opened and closed by motor driving according to the running state of said engine;
- a driving rotator mounted at one end of a rotation shaft of said sub-throttle valve so as to corotate with said rotation shaft;
- a driven rotator for rotating a main throttle pulley for operating said main throttle valve;
- and
- a link mechanism for linking said driving rotator and said driven rotator, and
- wherein, when said sub-throttle valve is fully opened while said main throttle valve is closed, the rotation of said driving rotator is transmitted to said driven rotator by said link mechanism so as to rotate said driven rotator, and said main throttle valve is opened at a predetermined angle necessary for the first idling by the rotation of said driven rotator.
Dependencies are inferred from the claim text.