IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0563473
(1983-12-20)
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발명자
/ 주소 |
- Thornton Donald I. (Warwick RI) Peyton Richard H. (Berkley MA)
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출원인 / 주소 |
- Allied Corporation (Morristown NJ 02)
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인용정보 |
피인용 횟수 :
6 인용 특허 :
4 |
초록
▼
Fuel supply system for a vehicle engine includes a filter/reservoir housing (22, 122, 222) which is communicated to one or more fuel tanks (12, 162, 164, 262, 264) and to the vehicle engine (14, 114, 214) by a fuel supply line (16, 116, 216) and a transfer pump (30, 130, 230). Excess fuel is returne
Fuel supply system for a vehicle engine includes a filter/reservoir housing (22, 122, 222) which is communicated to one or more fuel tanks (12, 162, 164, 262, 264) and to the vehicle engine (14, 114, 214) by a fuel supply line (16, 116, 216) and a transfer pump (30, 130, 230). Excess fuel is returned to the fuel tanks by a return line (18, 118, 218) which also communicates through the reservoir housing (22, 122, 222). Primary fuel pumps (24, 166, 168, 266, 268) pump fuel at a greater flow rate than that of the transfer pump (30, 130, 230) so that the excess fuel is returned to the tank through the return line (18, 118, 218), thereby assuring that fuel being returned from the engine does not mix with fuel being pumped to the engine. The reservoir housing (22, 122, 222) contains a quantity of fuel so that the engine will not be deprived of fuel if the fuel pickup in the tanks (12, 162, 164, 262, 264) momentarily is above the fuel level.
대표청구항
▼
Fuel supply system for a vehicle engine comprising fuel storage means, a fuel supply line communicating said fuel storage means to said engine, a fuel return line for returning unused fuel to said fuel storage means, a fuel reservoir housing communicated with said fuel supply and fuel return lines a
Fuel supply system for a vehicle engine comprising fuel storage means, a fuel supply line communicating said fuel storage means to said engine, a fuel return line for returning unused fuel to said fuel storage means, a fuel reservoir housing communicated with said fuel supply and fuel return lines and dividing said fuel supply line into a first section communicated with said fuel storage means and a second section communicated with said engine, said housing being divided into an inlet chamber communicated with said first section of said fuel supply line and an outlet chamber communicated with the second section of said fuel supply line and with said fuel return line, first pump means for pumping fuel through said first section of said fuel supply line, and second pump means for pumping fuel through the second section of said fuel supply line at a flow rate less than the flow rate at which the first pump means pumps fuel through the first section of the fuel supply line, the quantity of fuel pumped into said reservoir housing through said first section of the fuel supply line in excess of the quantity of fuel pumped from said reservoir housing through the second section of the fuel supply line being returned to said fuel storage means through said fuel return line, said fuel return line being divided into a first section between the engine and the reservoir housing and a second section between the reservoir housing and said fuel storage means, said outlet chamber providing a substantially unrestricted flowpath between said first and second sections of the fuel return line and the second section of the fuel supply line so that the quantity of fuel pumped by said first pump means in excess of the quantity of fuel pumped by said second pump means is normally pumped into said fuel return line at a pressure level greater than the pressure level in the fuel return line to prevent flow of fuel from said first section of the fuel return line into the second section of the fuel supply line during normal operation of said first pump means, but communication being permitted between said first section of the fuel return line into the second section of the fuel supply line through said outlet chamber when said first pump means fails to pump fuel into said first section at a predetermined rate.
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