Fuel vapor control system

Details Fuel vapor control system Fuel vapor control system

1990-09-04

1991-07-09

Moy, Joseph Man-Fu

Receptacles

Closures

With condition responsive vent or valve

220 85VR, 220 85VS, 220 862, B65D 5116

Patent

active

050297228

ABSTRACT:
An anti-pollution mechanism usable on the filler tubes of automotive fuel tanks to prevent vaporous hydrocarbons from escaping from the tank through the tube, especially at the instant when the closure cap at the mouth of the tube is initially opened such as required during refueling. A vapor escape line extends from the fuel tank to a vapor collection canister. A pressure-operated valve in the escape line is automatically opened in response to opening of the cap on the filler tube such that vapors and fumes escape through the line instead of flowing out of the tube mouth.

REFERENCES:
patent: 4701198 (1987-10-01), Uranishi et al.
patent: 4719949 (1988-01-01), Mears
patent: 4765504 (1988-08-01), Sherwood et al.
patent: 4809863 (1989-03-01), Woodcock et al.
patent: 4946060 (1990-08-01), Sherwood et al.

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