Vapor control valve and system therefor

Details Vapor control valve and system therefor Vapor control valve and system therefor

1986-07-31

1987-11-03

Cox, Ronald B.

Internal-combustion engines

Charge forming device

Having fuel vapor recovery and storage system

123518, 25112901, 25112921, F02M 3720

Patent

active

047037377

ABSTRACT:
A vapor control valve (12) and system therefor for controlling fuel tank (14) pressure and for purging hydrocarbons from a storage canister (16) comprising a single electrical coil (44) responsive to control signals, wound about a carrier or bobbin (34) including a central passage (36) and means for dividing said central passage into first (40) and second (42) axially aligned portions; a first piston (60) slidably received within said central passage at said first portion (40); a second piston (80) slidably received within said central passage at said first portion (42); a first valve seat (132) for receiving said first piston; a second valve seat (106) for receiving said second piston, a first spring (66) for biasing said first piston into said first valve seat; a second spring (90) for biasing said second piston into said second valve seat, wherein the spring constant of said first spring is less than the spring constant of said second spring.

REFERENCES:
patent: 946215 (1910-01-01), Geissinger
patent: 3043336 (1962-07-01), Parent
patent: 3172637 (1965-03-01), Adams
patent: 3521851 (1970-07-01), Sorrow
patent: 3550632 (1970-12-01), Noakes
patent: 3842860 (1974-10-01), Stampfli
patent: 4175526 (1979-11-01), Phelan
patent: 4432328 (1984-02-01), Shimizu

Affiliated with

Also associated with

Rating

Vapor control valve and system therefor does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Vapor control valve and system therefor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Vapor control valve and system therefor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1669631