Impulse pump
AssigneeWalbro Corporation
InventorsTakashi ABEI, Naoya KUMAGAI
Life of this patent
Estimating the term…
Abstract
In at least some implementations, a carburetor includes a body, a fuel pump diaphragm and a pressure pulse passage. The fuel pump diaphragm is carried by the body and defines in part a fuel chamber on one side of the fuel pump diaphragm and a pressure pulse chamber on the other side of the fuel pump diaphragm. The pressure pulse passage communicates the pressure pulse chamber with a pressure pulse source to provide pressure pulses in the pressure pulse chamber to actuate the fuel pump diaphragm. The pressure pulse passage includes an inlet communicating with a passage in which pressure pulses are present and the inlet is spaced from a surface defining the passage in which pressure pulses are present.
Claims17
A carburetor, comprising:
- a body;
- a fuel pump diaphragm carried by the body and defining in part a fuel chamber on one side of the fuel pump diaphragm and a pressure pulse chamber on the other side of the fuel pump diaphragm;
- and
- a pressure pulse passage communicating the pressure pulse chamber with a pressure pulse source to provide pressure pulses in the pressure pulse chamber to actuate the fuel pump diaphragm, the pressure pulse passage including an inlet communicating with a passage in which pressure pulses are present and the inlet being spaced from a surface defining the passage in which pressure pulses are present.
A carburetor, comprising:
- a body;
- a diaphragm carried by the body and defining in part a fuel chamber on one side of the fuel pump diaphragm and a pressure pulse chamber on the other side of the diaphragm;
- and
- a pressure pulse passage communicating the pressure pulse chamber with a pressure pulse source to provide pressure pulses in the pressure pulse chamber to actuate the diaphragm, the pressure pulse passage including an inlet communicating with a passage in which pressure pulses are present and the inlet being spaced from a surface defining the passage in which pressure pulses are present.
Dependencies are inferred from the claim text.