FUEL SUPPLY DEVICE

摘要

A fuel supply device includes a fuel pump and a filter case that houses a fuel filter, a fuel pumped by the fuel pump from inside a fuel tank is filtered by the fuel filter and supplied from inside the filter case toward an internal combustion engine, and the filter case includes a case body having a closed bottom shape that forms a housing chamber of the fuel filter, a case cap that covers an aperture of the case body by being joined to the case body, and a residual pressure retention valve that, when the fuel pump is stopped, retains a pressure of the fuel supplied from inside the filter case toward the internal combustion engine, the residual pressure retention valve being disposed at a joint boundary of the case body and the case cap.

主权项

1. A fuel supply device, comprising:
a fuel pump; and a filter case that houses a fuel filter, wherein a fuel pumped by the fuel pump from inside a fuel tank is filtered by the fuel filter and supplied from inside the filter case toward an internal combustion engine, and the filter case includes
a case body having a closed bottom shape that forms a housing chamber of the fuel filter,a case cap that covers an aperture of the case body by being joined to the case body, anda residual pressure retention valve that, when the fuel pump is stopped, retains a pressure of the fuel supplied from inside the filter case toward the internal combustion engine, the residual pressure retention valve being disposed at a joint boundary of the case body and the case cap.