Valve means responsive to the operation of a vapor-seal valve for preventing fuel spillage from the discharge spout of a vapor-recovery fuel dispensing nozzle

Patent · Tue Jul 22 00:00:00 EDT 1980

OSTI ID:5026205

Pyle, W

A description is given a vapor-recovery fuel dispensing nozzle, comprising: a nozzle main body portion; a discharge spout projecting from the main body portion, said discharge spout having an outlet end proportioned for ease of insertion into a fill pipe of a fuel tank; a flow passage extending through said discharge spout and the nozzle main body portion for the flow of fuel therethrough; a flow control valve in the nozzle main body portion operable to regulate the flow of fuel through said flow passage; a vapor recovery passage means formed in the main body portion; a vapor recovery shroud disposed radially outwardly from said discharge spout and having an inner end and an outer end, the inner end of said shroud connected to the nozzle main body portion in communication with said vapor recovery passage means; a sealing collar at the outer end of said shroud for engagement with the fill pipe opening when said discharge spout is inserted therein in use of said nozzle to direct vapor expelled from the fuel tank during refueling to said vapor recovery passage means by way of said shroud; a vapor-seal valve for said nozzle operable to be in a closed position to prevent the escape of vapors through the outer end of said shroud when said nozzle is not in use and to be in an open position when said discharge spout is inserted into the fill pipe in use of said nozzle so that vapor expelled from the fuel tank during refueling may be directed by way of said shroud to said vapor recovery passage means; valve means responsive to the operation of said vapor-seal valve located in said discharge spout at the outlet end thereof for sealing the outlet end of said discharge spout to prevent the flow of fuel therethrough when said vaporseal valve is in a closed position and for opening the outlet end of said discharge spout to permit the flow of fuel therethrough when said vapor-seal valve is in an open position.

• Assignee: Chevron Research Co
• Patent Number(s): US 4213488
• OSTI ID: 5026205
• Resource Relation: Patent File Date: Filed date 4 Dec 1978
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
FUEL FEEDING SYSTEMS
VALVES
DESIGN
GASOLINE SERVICE STATIONS
NOZZLES
SEALING MATERIALS
COMMERCIAL SECTOR
CONTROL EQUIPMENT
EQUIPMENT
FLOW REGULATORS
FUEL SYSTEMS
MARKETERS
MATERIALS
RETAILERS
320104* - Energy Conservation
Consumption
& Utilization- Commercial & Industrial Buildings- (-1987)