Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Low noise fuel injection pump










Image Number 6 for United States Patent #7610902.

A fuel pump assembly has a bushing defining a pumping chamber, a plunger, a cam follower piece, and a compliance device for absorbing noise by increasing either or both of a hydraulic and/or a mechanical compliance of the fuel pump assembly. The compliance device may includes a spring washer or a press-fit spring. The pump bushing and/or plunger may include a cavity as the compliance device for increasing dead volume, the cavity being in fluid communication with the pumping chamber via an orifice. A deflectable or movable mechanism is positioned within a cavity for increasing dead volume, and a solenoid varies a diameter of the orifice. The moveable mechanism includes a poppet valve having a switching pressure related to engine speed. A vehicle includes an engine, transmission, fuel rail, and a fuel pump assembly configured with at least one compliance device for absorbing a hydraulic noise component.








 
 
  Recently Added Patents
Wall flow type exhaust gas purification filter
Computer network running a distributed application
Light emitting device
Clothing fastener accessory
Catalytic pyrolysis using UZM-44 aluminosilicate zeolite
Managing device functionality during predetermined conditions
Variety corn line NPAA2675
  Randomly Featured Patents
Binding agent for solid block functional material
Method and apparatus for bridged tap impact analysis
Idling speed control system for internal combustion engines
Process for the production of solutions of lower aliphatic carboxylic acid salts of cationic dyestuffs
Appliance drawer and latch mechanism therefor
Retractor apparatus for electrical cord
Over-the-door hanging apparatus
Fish cleaning device
Biorheological measurement
Motor