Patent ID: 11891969
Assignee: AISAN KOGYO KABUSHIKI KAISHA
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F  B  Y | IPC B  F

Claim 0:
1. A fuel-feeding device, comprising:
a fuel tank storing fuel therein;
a fuel pump configured to feed the fuel in the fuel tank to an engine through a fuel-feeding conduit extending from the fuel tank;
an aspirator disposed along a branched conduit extending from the fuel-feeding conduit, wherein the aspirator is configured to generate a negative pressure therein in response to a flow of the fuel flowing through the branched conduit from the fuel-feeding conduit;
a negative pressure sensor configured to detect the negative pressure generated by the aspirator; and
a control device configured to control a revolution speed of the fuel pump,
wherein the control device is configured to determine a sign of vapor generation in the fuel stored in the fuel tank based on the negative pressure detected by the negative pressure sensor and to increase the revolution speed of the fuel pump when such a sign is determined.