| 摘要 |
A fuel supply system to control an air-fuel mixture for an internal combustion engine which includes an air-flow sensor located in the intake manifold and a manually controlled throttle element. The air-flow sensor includes a rotary element mounted about an axis that extends in the direction of flow, which is moved against a reset force in accordance with the amount of flowing air, so that the air-flow sensor sensor adjusts a fuel supply valve to meter an amount of fuel that corresponds to the amount of air. The rotary element has at least one axial recess which cooperates with a port of the manifold to control an air-flow section and has radial ribs which limit a control chamber having at least one wall securely fixed to the manifold housing, said control chamber being in communication with the intake manifold between the air-flow sensor and the throttle element, while the intake manifold pressure upstream from the air-flow sensor acts upon said ribs. A movable portion of the fuel-metering valve controlled by the air-flow sensor has at least one control slit which opens into a face of the movable portion crosswise to the axis of the air-flow sensor, said control slit arranged to cooperate with at least one control port in a fixed fuel-metering body. |
