Fluid handling – Control by change of position or inertia of system – Vent opening or closing on tipping container
Patent
1992-07-07
1993-08-10
Hepperle, Stephen M.
Fluid handling
Control by change of position or inertia of system
Vent opening or closing on tipping container
137202, 1374895, 137493, 137510, 137522, 137587, F16K 2400
Patent
active
052340139
ABSTRACT:
An apparatus is provided for controlling venting of fuel vapor through an aperture in a fuel tank. The apparatus comprises a housing mounted in the aperture and a valve moveable in the housing between a blocking position blocking flow of fuel vapor from the fuel tank through the housing and a venting position allowing flow of fuel vapor from the fuel tank through the housing. A spring biases the valve towards its blocking position. A mechanism is provided for using fuel vapor from the fuel tank to move the valve against the spring towards its venting position. The using mechanism includes a venting control chamber receiving fuel vapor from the fuel tank in a conduit communicating fuel vapor from the fuel tank to the venting control chamber. The conduit includes a first portion and a second portion moveable relative to the first portion to define an intermediate portion. The apparatus further includes a flexible partition extending between the valve and the first portion to provide a barrier to prevent fuel vapor venting through the housing from entering the intermediate portion.
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Bell Lowell R.
Roetker John J.
Hepperle Stephen M.
Stant Manufacturing Inc.
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