Viscous fluid supply control apparatus and method thereof

Details Viscous fluid supply control apparatus and method thereof Viscous fluid supply control apparatus and method thereof

1998-07-02

2000-07-18

Morris, Lesley D.

Fluid sprinkling, spraying, and diffusing

With signals, indicators, recorders, meters or changeable...

239 99, 239124, B67D 508

Patent

active

060894695

ABSTRACT:
A viscous fluid supply control apparatus reduces a difference between a primary side pressure of a feeding pump and a secondary side pressure thereof to lessen an internal leak of the feeding pump. The viscous fluid supply control apparatus comprises a viscous fluid supply source, a discharge nozzle for discharging a viscous fluid, a feeding pump for feeding the viscous fluid from the viscous fluid supply source to the discharge nozzle, a first pressure sensor for detecting the primary side pressure of the feeding pump, a second pressure sensor for detecting the secondary side pressure of the feeding pump, and pressure regulation control means for controlling actuation of pressure regulating means regulating the primary side pressure based on detection values obtained by the first and second pressure sensors. The pressure regulation control means controls the actuation of the pressure regulating means such that the primary side pressure of the feeding pump converges on the secondary side pressure thereof.

REFERENCES:
patent: 4274380 (1981-06-01), De Vulpillieres
patent: 4585169 (1986-04-01), Kinsey
patent: 4848657 (1989-07-01), Hashimoto et al.
patent: 5048754 (1991-09-01), Rich
patent: 5312042 (1994-05-01), Larson
patent: 5397054 (1995-03-01), Ziegs

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