Fuel vapor purge system for internal combustion engine and metho

Details Fuel vapor purge system for internal combustion engine and metho Fuel vapor purge system for internal combustion engine and metho

1993-08-16

1995-03-28

Miller, Carl S.

Internal-combustion engines

Charge forming device

Having fuel vapor recovery and storage system

123198D, F02M 3302

Patent

active

054007593

ABSTRACT:
A fuel vapor purge system for an internal combustion engine comprises a fuel tank, a purge pipe for introducing fuel vapor generated in the fuel tank into an intake passage of the engine, a purge valve installed in the piping, an engine control unit for opening the purge valve in dependence on the state in which the engine operates, a pressure sensor for detecting a pressure within the fuel tank, and an alarm being operative under the control of the engine control unit. The engine control unit opens the purge valve for a first predetermined period when the engine operation is in a steady state, makes decision as to occurrence of an abnormality in the purge system on the basis of a magnitude of change in the internal pressure of the fuel tank over a second predetermined period covering the first predetermined period, and activates the alarm when occurrence of an abnormality is determined.

REFERENCES:
patent: 5143035 (1992-09-01), Kayanuma
patent: 5186153 (1993-02-01), Steinbrenner
patent: 5193512 (1993-03-01), Steinbrenner
patent: 5197442 (1993-03-01), Blumenstock
patent: 5220896 (1993-06-01), Blumenstock
patent: 5230319 (1993-07-01), Otsuka
patent: 5259353 (1993-11-01), Nakai
patent: 5261379 (1993-01-01), Lipinski
patent: 5275144 (1994-01-01), Gross
patent: 5284121 (1994-02-01), Abe

Affiliated with

Also associated with

Rating

Fuel vapor purge system for internal combustion engine and metho does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Fuel vapor purge system for internal combustion engine and metho, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fuel vapor purge system for internal combustion engine and metho will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2244014