Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Vapor emission recovery and measuring method and vapor recovery collection boot

Patent ·
OSTI ID:5415915

A testing method and an apparatus are described for use at service stations to establish whether gasoline refueling systems meet government regulations for gasoline vapor emission. The apparatus includes a boot used to surround a gasoline dispensing nozzle while delivering gasoline to an automobile gas tank. This boot is used to recover the emitted vapors directly from the vehicle-nozzle interface region and the recovered apors are drawn by a pump through a flow meter and delivered to an analyzer. The outputs of the flow meter and analyzer may be delivered to a computing device to determine the mass emission rare of hydrocarbons and the accumulated total hydrocarbon mass emitted.

Assignee:
ERA-05-024626; EDB-80-067691
Patent Number(s):
US 4138880
OSTI ID:
5415915
Country of Publication:
United States
Language:
English