Claims
- 1. A shield for mitigating admission of moisture and gases into an actuator of a pintle-type valve, a pintle extending from a pintle bearing in a valve body through a bearing splash shield into an actuator, the moisture and gas shield comprising:
a) a tubular portion slidably disposed on said pintle, and b) a radial flange mounted on said tubular portion, said shield being slidably adaptable on said pintle to form alternately a first seal of said flange against said bearing splash shield and a second seal of said flange against said actuator.
- 2. A shield for mitigating admission of moisture and gases into an actuator of a pintle-type valve, the valve having a valve body and a pintle bearing disposed in the valve body and shielded by a bearing splash shield, the actuator being mounted on the valve body for receiving and axially actuating a pintle extending from the bearing through the splash shield into the actuator, an annular chamber being formed between the splash shield and the actuator, the moisture and gas shield comprising:
a) a tubular portion slidably disposed on said pintle, and b) a radial flange mounted equatorially on said tubular portion within said annular chamber, said shield being slidably adaptable on said pintle to form alternately a first seal of said flange against said bearing splash shield and a second seal of said flange against said actuator.
- 3. A pintle-type valve, comprising:
a) a valve body; b) a pintle bearing disposed in said valve body and shielded by a bearing splash shield; c) a pintle extending from said bearing through said splash shield; d) an actuator mounted on said valve body for receiving and axially actuating said pintle, an annular chamber being formed between said splash shield and said actuator; and e) a moisture and gas shield having a tubular portion slidably disposed on said pintle and having a radial flange mounted equatorially on said tubular portion within said annular chamber, said moisture and gas shield being slidably adaptable on said pintle to form alternately a first seal of said flange against said bearing splash shield and a second seal of said flange against said actuator.
- 4. A valve in accordance with claim 3 wherein said valve is an exhaust gas recirculation valve.
- 5. A valve in accordance with claim 4 wherein said exhaust gas recirculation valve is mounted in an internal combustion engine.
CROSS REFERENCE TO RELATED APPLICATIONS
[0001] This application claims the benefit of U.S. Provisional Application Ser. No. 60/184,760, filed Feb. 24, 2000.
Provisional Applications (1)
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Number |
Date |
Country |
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60184760 |
Feb 2000 |
US |