Actuator housing

Details Actuator housing Actuator housing

1996-08-29

1999-03-09

Rivell, John

Fluid handling

With indicator, register, recorder, alarm or inspection means

Position or extent of motion indicator

137338, 25112915, 123571, F02M 2507, F16K 4900, F16K 3700, F16K 3106

Patent

active

058787798

ABSTRACT:
An EGR valve useful for metering exhaust gas to the intake of an internal combustion engine is disclosed. The EGR valve includes a base member through which exhaust gas passes and in which is disposed a valve member. An actuator housing is constructed with integral, hollow leg members for mounting the actuator to the base and also includes a valve stem passage which sealingly engages an opening in the base to provide a leak-free passage for the valve from the base to the actuator. A solenoid assembly disposed within the housing includes a bottom portion which is configured with openings to support fasteners which pass through the bottom and the hollow housing legs to engage corresponding faster openings in the base to fix the actuator housing to the base by placing the legs in compression thereagainst. In addition the housing includes integral venting features which allow the housing interior to remain in communication with atmospheric pressure when said valve passage is exposed to manifold vacuum thereby preventing contamination of the solenoid actuator with exhaust gas from the exhaust gas passage.

REFERENCES:
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patent: 5626165 (1997-05-01), Shinobu
patent: 5680880 (1997-10-01), Miyake et al.
patent: 5685519 (1997-11-01), Bircann et al.
patent: 5687698 (1997-11-01), Mastro et al.

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