Control for vacuum system

Details Control for vacuum system Control for vacuum system

1974-09-03

1976-01-27

Cohen, Irwin C.

Fluid handling

Line condition change responsive valves

Pilot or servo controlled

137DIG8, G05D 1606

Patent

active

039346072

ABSTRACT:
An indicator senses a deviation from a balance between a force generated by the vacuum level actually prevailing in the vacuum system and a force of constant magnitude permanently acting in the indicator. An air admission valve is connected to the vacuum system, and a connection is provided for transmitting a deviation impulse generated by the indicator to an operating means for controlling the air admission valve under the guidance of the deviation impulse.

REFERENCES:
patent: 356318 (1887-01-01), Jones
patent: 2174515 (1939-10-01), Hughes
patent: 3036778 (1962-05-01), Dillman
patent: 3357443 (1967-12-01), Brumm
patent: 3807439 (1974-04-01), Doe

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