Invention Grant
- Patent Title: Fuel pump for an internal combustion engine
- Patent Title (中): 用于内燃机的燃油泵
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Application No.: US13423528Application Date: 2012-03-19
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Publication No.: US09562504B2Publication Date: 2017-02-07
- Inventor: Yosuke Tanabe , Jason Abbas , George Saikalis
- Applicant: Yosuke Tanabe , Jason Abbas , George Saikalis
- Applicant Address: JP Tokyo
- Assignee: Hitachi, Ltd
- Current Assignee: Hitachi, Ltd
- Current Assignee Address: JP Tokyo
- Agency: Mattingly & Malur, P.C.
- Main IPC: F04C2/08
- IPC: F04C2/08 ; F02M63/02 ; F02M59/12 ; F02M59/36 ; F04C2/18 ; F04C14/26

Abstract:
A fuel pump for a direct injection internal combustion engine having a housing defining a pump chamber. Driven and idler toothed gears are rotatably mounted within the pump chamber so that the driven and idler gears are in mesh with each other at a predetermined location in the pump chamber. A fluid inlet is formed through the housing and open to an inlet subchamber in the pump chamber. A fluid outlet is also formed through the housing and open to an outlet subchamber in the pump chamber. A pressure relief passageway fluidly connects the inlet subchamber to the outlet subchamber and a valve is disposed in series with the pressure relief passageway. A control circuit controls the actuation of the valve to control the pump pressure at the pump outlet.
Public/Granted literature
- US20130243636A1 FUEL PUMP FOR AN INTERNAL COMBUSTION ENGINE Public/Granted day:2013-09-19
Information query
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