Fluent material handling – with receiver or receiver coacting mea – Diverse fluid containing pressure filling systems involving... – Filling with exhausting the receiver
Patent
1995-10-16
1998-10-06
Jacyna, J. Casimer
Fluent material handling, with receiver or receiver coacting mea
Diverse fluid containing pressure filling systems involving...
Filling with exhausting the receiver
417405, B65B 104, F04B 1700
Patent
active
058162976
ABSTRACT:
A motor/pump unit for pumping vapor in response to a flow of liquid, and particularly useful in systems for dispensing fuel to a vehicle wherein vapor given off by the fuel is to be returned from the filling port of the vehicle back to the fuel dispensing apparatus to avoid atmospheric contamination. One inventive embodiment, with available conventional fuel dispenser pressure and flow rate, allows abnormally small motor and pump chambers and motor/pump rotor assembly size and abnormally high rotor assembly rotation rate and abnormally quick rotor assembly acceleration to operating speed with sufficient vapor pumping capability. The resulting abnormally small motor/pump enables same to be easily adapted to a variety of existing dispensing pump and hose configurations. Under another embodiment, structure is provided for maximizing fuel flow rate and minimizing pressure drop across the motor/pump unit while providing adequate vapor pumping rate. Under another embodiment, structure is manually adjustable for varying the vapor pumping capacity of the motor/pump, for example to accommodate seasonal changes in fuel composition.
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Olson Scott Marlin
Wood Gregory Paul
Delaware Capital Formation Inc.
Douglas Steven O.
Jacyna J. Casimer
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