Resources Contact Us Home
Variable delivery fuel supply device

Image Number 3 for United States Patent #6209522.

A variable delivery fuel supply device capable of obtaining a stable fuel pressure even in a case of inoperability of an electromagnetic valve and capable of improving the durability of the electromagnetic valve, which comprises fuel injection valves 1a through 1d for injecting fuel to respective cylinders of an internal combustion engine, a delivery pipe 2 connected with the fuel injection valves 1a through 1d, a fuel pump 3 which sucks fuel from a fuel intake valve into a pressurizing chamber 23 by a reciprocating action of a plunger 21 in a cylinder 20 and supplies the pressurized fuel into the delivery pipe 2 through a discharge valve 31, an electromagnetic valve 32 located in a relief passage 35 communicating the pressurizing chamber 23 of the fuel pump 32 with the fuel intake port 27 and is adapted to control a discharge quantity of the pressurized fuel by relieving the pressurized fuel in the pressurizing chamber 23 into the fuel intake port 27 at the time of opening the valve to thereby control a fuel pressure in the delivery pipe 2, and a high pressure regulator 19 for controlling a fuel pressure by relieving the pressurized fuel in a high-pressure fuel passage including the delivery pipe 2.

  Recently Added Patents
Hydrogen generation device and fuel cell system
Toner cartridge
Mechanism for visible users and groups
Registry key federation systems and methods
Volume compensation within a photovoltaic device
Image forming apparatus to automatically select a communication condition
System and method for combined I/Q generation and selective phase interpolation
  Randomly Featured Patents
Apparatus of dynamic anti-vibration for storage device
Process for recovering organic hydroxides from waste solutions
Antenna switching equipment
Tread portion of a motorcycle tire
Ultraviolet irradiation apparatus for photochemical reaction and preparation process of vitamin D derivative making use of the same
Information system and method for disseminating technology information
Heat-radiating fin for a heat sink
Radio frequency connector
Table saw
Transceiver site selection a cellular communications system