Mono-block control valve with side bypass passage

Details Mono-block control valve with side bypass passage Mono-block control valve with side bypass passage

1995-06-30

1996-12-24

Nguyen, Hoang

Fluid handling

Systems

Supply and exhaust

E03B 100

Patent

active

055865771

ABSTRACT:
An improved mono-block control valve having a side bypass passage substituting for a typical center bypass passage is disclosed. The side bypass passage simplifies the passage structure of the valve body into a two-dimensional structure, thereby remarkably reducing the valve body size and improving the space efficiency and cutting down the cost. The left and right return passes are connected together by a connection passage at every section of the valve body. Due to the connections passages, the control valve prevents passage resistance and pressure loss in the return passages and makes both the negative pressures in the right and left actuator ports and the negative pressures in the sections uniform. The control valve thus improves the operational stability and reliability.

REFERENCES:
patent: 3225781 (1965-12-01), Kruger et al.
patent: 4080994 (1978-03-01), Flaschar et al.
patent: 4099541 (1978-07-01), Binkley et al.
patent: 4150690 (1979-04-01), Heiser et al.

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