Check valve for fuel pump
AssigneeDelphi Technologies, Inc.
InventorDale M. Pickelman
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. The check valve also includes a valve guide disposed within the valve housing and a valve seat disposed within the valve housing and spaced from the valve guide. The check valve further includes a valve member having an aerodynamic shape disposed within 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 cooperate with the valve guide to allow fuel to flow through the outlet member.
Claims20
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 guide disposed in said valve housing;
- a valve seat disposed within said valve housing and spaced from said valve guide;
- and
- a valve member having an aerodynamic shape disposed within 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 cooperate with said valve guide to allow fuel to flow through the outlet member.
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 guide disposed in said passageway of said valve housing;
- a valve seat disposed in said passageway of said valve housing and spaced axially from said valve guide;
- and
- a valve member having a hub of an aerodynamic shape and a stem extending axially from said hub, said valve member being disposed within 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 engage said backstop portion to allow fuel to flow through the outlet member.
A check valve as set forth in claim 17 wherein said valve seat has a recess at one end thereof and communicating with said aperture to receive said hub and allow said cone to extend into said aperture when said valve member is in said closed 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 guide disposed tin said passageway and including a first aperture extending axially therethrough and a plurality of legs extending radially and spaced circumferentially thereabout;
- a valve seat disposed within said passageway of said valve housing and spaced axially from said valve guide, said valve seat including a second aperture extending axially therethrough;
- a valve member disposed within said valve housing and having a hub of an aerodynamic shape with a cone tip and a stem extending axially from said hub and received in said first aperture;
- and
- a spring disposed about said stem to urge said hub of said valve member toward said valve seat, said hub having a closed position to engage said valve seat and close said second aperture to prevent fuel from flowing through the outlet member and an open position to allow fuel to flow through said second aperture.
Dependencies are inferred from the claim text.