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US 10,309,358 B2Granted
Fuel pressure pulsation damping device and fuel system including the same
AssigneeFord Global Technologies, LLC
InventorsCharles Qin, Le Hong, Steven Shi
Life of this patent
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Abstract
The present disclosure provides a fuel pressure pulsation damping device in a fuel return line between a high pressure pump and a fuel tank in a fuel system. The fuel pressure pulsation damping device includes a housing having an inlet pipe, an outlet pipe and an intermediate pipe; and a rotatory impeller positioned in the intermediate pipe.
Claims20
A fuel pressure pulsation damping device located in a fuel return line between a high pressure pump and fuel tank in a fuel system, comprising:
- a housing having an inlet pipe, an outlet pipe and an intermediate pipe;
- and
- a rotatory impeller positioned in the intermediate pipe and having a plurality of vanes, wherein the housing and the plurality of vanes are configured to reduce pulsation and wherein the housing is made of plastic material.
A fuel supply system, comprising:
- a fuel tank;
- a high pressure pump;
- a supply line connecting the fuel tank and the high pressure pump;
- a return line connecting the fuel tank and the high pressure pump;
- and
- a fuel pressure pulsation damping device positioned at the return line between the high pressure pump and the fuel tank;
- wherein the fuel pressure pulsation damping device includes a housing having an inlet pipe, an outlet pipe and an intermediate pipe positioned between the inlet pipe and the outlet pipe;
- and a rotatory impeller positioned in the intermediate pipe, wherein the impeller includes a plurality of vanes, wherein a cross-section area of the intermediate pipe is larger than a cross-section area of the outlet pipe, and larger than a cross-section area of the inlet pipe, and wherein the housing and the plurality of vanes are configured to reduce pulsation and the housing is made of plastic material.
5 more elements
Dependencies are inferred from the claim text.