Master cylinder

Details Master cylinder Master cylinder

2007-09-04

2007-09-04

Leslie, Michael (Department: 3745)

Power plants

Pressure fluid source and motor

Pulsator

Reexamination Certificate

active

11334389

ABSTRACT:
A large-diameter bore portion is formed in a portion defining a pressure chamber in a cylinder body on a side opposite to a circumferential groove relative to a slidable inner-diameter portion. A communication groove capable of allowing communication between the circumferential groove and the large-diameter bore portion is formed in an upper portion of the slidable inner-diameter portion. A point of maximum depth of the communication groove is located radially outward of a bottom of the circumferential groove. The master cylinder of the present invention is capable of preventing the supply of a brake fluid from being restricted in an evacuation process, and enables a reduction in length to be machined of the communication groove, thus reducing the time for machining and suppressing an increase in cost.

REFERENCES:
patent: 6935112 (2005-08-01), Koshimizu et al.
patent: 2004/0079078 (2004-04-01), Bacardit et al.
patent: 2004-231093 (2004-08-01), None
patent: 2004-299568 (2004-10-01), None

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