Transmission having a vacuum ventilation control

Details Transmission having a vacuum ventilation control Transmission having a vacuum ventilation control

F - Mech Eng,Light,Heat,Weapons

16

H

74/118, 138/12,

F16H 41/00 (2006.01) F01M 13/02 (2006.01) F16H 57/02 (2006.01)

Patent

CA 1201361

TRANSMISSION HAVING A VACUUM VENTILATION-CONTROL Abstract of the Disclosure A transmission includes a housing having the interior thereof connected for fluid communica- tion with a vacuum source, such as an engine mani- fold. A check valve and regulator valve are disposed between the transmission housing and the vacuum source. The check valve prevents fluid flow from the vacuum source to the transmission while the regulator valve limits the maximum vacuum that can be drawn in the transmission housing. The normal transmission fill tube opening has installed therein a filter for restricting fluid flow to the interior of the housing or a cap for preventing fluid flow through the fill tube during normal operation.

452588

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