Check valve for fuel pump
AssigneeDelphi Technologies, Inc.
InventorsRobert A. Roth, Partab Jeswani
Life of this patent
Estimating the term…
Abstract
A check valve for a fuel pump of a vehicle includes a valve housing adapted to be disposed in an outlet member of the fuel pump and a valve seat formed on the valve housing. The check valve also includes a valve member disposed in the valve housing and having a closed position to engage the valve seat to prevent fuel from flowing through the outlet member and an open position to allow fuel to flow through the outlet member. The valve housing has a vortex abating geometry located near the valve seat to add turbulence to fluid flow past the valve seat when the valve member is in the open position.
Claims18
A check valve for a fuel pump of a vehicle comprising:
- a valve housing adapted to be disposed in an outlet member of the fuel pump;
- a valve seat formed on said valve housing;
- a valve member disposed in said valve housing and having a closed position to engage said valve seat to prevent fuel from flowing through the outlet member and an open position to allow fuel to flow through the outlet member;
- and
- said valve housing having a vortex abating geometry located near said valve seat to add turbulence to fluid flow past said valve seat when said valve member is in said open position.
A check valve for a fuel pump of a vehicle comprising:
- a valve housing adapted to be disposed in an outlet member of the fuel pump, said valve housing having a passageway extending axially therethrough;
- a valve seat formed on said valve housing adjacent said passageway;
- a valve member disposed in said passageway of said valve housing and having a closed position to engage said valve seat to prevent fuel from flowing through the outlet member and an open position to allow fuel to flow through the outlet member;
- and
- said valve housing having a vortex abating geometry spaced radially from said valve seat to add turbulence to fluid flow past said valve seat when said valve member is in said open position.
A check valve for a fuel pump of a vehicle comprising:
- a valve housing adapted to be disposed in an outlet member of the fuel pump, said valve housing having a body portion with a passageway extending axially therethrough;
- a valve seat formed on said valve housing adjacent said passageway;
- a valve member disposed in said passageway of said valve housing and having a closed position to engage said valve seat to prevent fuel from flowing through the outlet member and an open position to allow fuel to flow through the outlet member;
- said valve member having an annular groove extending radially therein;
- a seal disposed in said groove for contacting said valve seat when said valve member is in said closed position;
- said valve housing having an enlarged opening at one end of said passageway and said valve member has a flange at one end and disposed in said enlarged opening;
- a spring disposed about said valve member between said flange and surface of the enlarged diameter portion to urge said seal and valve member toward said valve seat;
- and
- said valve housing having a vortex abating geometry spaced radially from said valve seat to add turbulence to fluid flow past said valve seat when said valve member is in said open position.
Dependencies are inferred from the claim text.