Patent Number: 6,170,382

Title: Negative-pressure booster

Abstract: A negative-pressure booster is provided with a housing, two movable walls, a power piston, an input member, an air valve seat, a negative-pressure valve seat, a control valve having an air sealing valve portion and a negative-pressure sealing portion, an output rod, an reaction disc, a slider valve, and an actuator. The output of the negative-pressure booster can be adjusted by adjusting the driving force of the actuator.

Inventors: Tsubouchi; Kaoru (Toyota, JP), Miwa; Akihiko (Anjo, JP)


International Classification: B60T 13/57 (20060101); B60T 13/72 (20060101); B60T 13/66 (20060101); B60T 8/48 (20060101); F15B 009/09 ()

Expiration Date: 01/09/2013