Proportional electromagnetic valve having amplifier therein

Details Proportional electromagnetic valve having amplifier therein Proportional electromagnetic valve having amplifier therein

1988-07-19

1990-05-29

Michalsky, Gerald A.

Fluid handling

With indicator, register, recorder, alarm or inspection means

Position or extent of motion indicator

13762565, 137884, 25112908, 2511291, 25112915, F15B 13044

Patent

active

049287303

ABSTRACT:
A proportional electromagnetic valve includes a valve main body having a valve member, a solenoid to drive the valve member, and an amplifier unit to control the solenoid. The solenoid is attached to one or both side portions of the valve main body. The amplifier unit has a size which is almost equal to a size on the unit attaching surface side of the valve main body and solenoids. The casing of the amplifier unit has an enclosing space large enough such that single printed board having all of drive amplifiers attached there to placed in the casing of the amplifier unit.

REFERENCES:
patent: 4308891 (1982-01-01), Loup
patent: 4418720 (1983-12-01), Day et al.
patent: 4458289 (1984-07-01), Lukasczyk
patent: 4796661 (1989-01-01), Hishinuma et al.

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