Fluent material handling – with receiver or receiver coacting mea – Diverse fluid containing pressure filling systems involving... – Filling with exhausting the receiver
Patent
1999-01-08
2000-04-04
Douglas, Steven O.
Fluent material handling, with receiver or receiver coacting mea
Diverse fluid containing pressure filling systems involving...
Filling with exhausting the receiver
141 46, 141 98, 141198, 141DIG1, B65B 3100
Patent
active
060448733
ABSTRACT:
An apparatus is provided for detecting the presence of a vehicle equipped with an onboard refueling vapor recovery system. The apparatus has a body that is equipped with an inlet fluid port and an outlet fluid port that is in fluid communication with the inlet fluid port. The body also has an inlet vapor port that is in fluid communication with the outlet fluid port. The apparatus further includes a vacuum chamber that is located within the body, and that is in fluid communication with the vapor port and the outlet port. The apparatus has a vaccum activated detecting switch coupled to the body that is in fluid communication with the vacuum chamber. A vacuum-generating nozzle is coupled within the body between the inlet port and the vacuum chamber. Fuel may be provided to the inlet port and routed through the nozzle to create a vacuum within the chamber. The vapor port may be coupled to a vapor return line, and the switch can be adjusted to detect the pressure difference occurring when air is returned through the vapor port rather than fuel vapor. This sensed difference can then be used to adjust the operation of a Phase II vapor recovery system.
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patent: 5782275 (1998-07-01), Hartsell, Jr. et al.
Aspirator-Assist.RTM. by Red Jacket, "Your Answer to Stage II Vapor Recovery," 2 pages, prior to Jan. 8, 1999.
Douglas Steven O.
Huynh Khoa D.
Miller Zane A.
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