Apparatus and method for periodically cleaning a charcoal canist

Internal-combustion engines – Charge forming device – Having fuel vapor recovery and storage system

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

123520, F02M 3704

Patent

active

059750626

ABSTRACT:
A method and apparatus for periodically air-washing a charcoal canister and for testing leak-tightness of a closed fuel supply system of an internal combustion engine in which a reversible electric air pump is installed in a line connecting the fuel system and the canister to the intake manifold of the engine upstream of the choke valve. In one direction of operation of the pump, ambient air is sucked through the canister and fed to the intake manifold to wash the canister and in the other direction of operation of the pump, air is pumped from above the choke valve in the intake manifold to the fuel system to pressurize the system to check leak-tightness thereof. When the engine is turned off, the pump is shut off and the fuel supply system is connected to the canister.

REFERENCES:
patent: 4070828 (1978-01-01), Barres
patent: 5273020 (1993-12-01), Hayami
patent: 5349935 (1994-09-01), Mezger et al.
patent: 5411004 (1995-05-01), Busato et al.
patent: 5450834 (1995-09-01), Yamanaka et al.
patent: 5635630 (1997-06-01), Dawson et al.
patent: 5881700 (1999-03-01), Gras et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Apparatus and method for periodically cleaning a charcoal canist does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus and method for periodically cleaning a charcoal canist, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for periodically cleaning a charcoal canist will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2122351

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.