The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Dec. 20, 2016

Filed:

Dec. 27, 2013
Applicants:

Honda Motor Co., Ltd., Minato-Ku, Tokyo, JP;

Nissin Kogyo Co., Ltd., Ueda-Shi, Nagano, JP;

Inventors:

Takaaki Ohnishi, Wako, JP;

Motoyasu Nakamura, Ueda, JP;

Masaki Kuramochi, Ueda, JP;

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B60T 11/224 (2006.01); B60T 13/14 (2006.01); B60T 11/20 (2006.01); B60T 11/228 (2006.01); B60T 11/34 (2006.01); B60T 7/04 (2006.01); B60T 13/74 (2006.01);
U.S. Cl.
CPC ...
B60T 13/146 (2013.01); B60T 7/042 (2013.01); B60T 11/20 (2013.01); B60T 11/228 (2013.01); B60T 11/34 (2013.01); B60T 13/745 (2013.01);
Abstract

A hydraulic-pressure generator including: primary and secondary pistons displaced corresponding to displacement of a brake pedal; a first pressure chamber communicating with a first hollow in the primary piston and generating in brake fluid hydraulic pressure corresponding to the displacement of the primary piston; a second pressure chamber communicating with a second hollow in the secondary piston and generating in the brake fluid hydraulic pressure corresponding to the displacement of the secondary piston; one or more first communication openings formed in a peripheral wall surrounding the first hollow; and second communication openings formed in a peripheral wall surrounding the second hollow. The flow rate of the brake fluid through the one or more first communication openings is different from the flow rate of the brake fluid through the second communication openings.


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