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:
Jan. 17, 2023

Filed:

Dec. 14, 2018
Applicant:

Robert Bosch Gmbh, Stuttgart, DE;

Inventors:

Hiroaki Atsushi, Kanagawa, JP;

Kosaku Sagayama, Kanagawa, JP;

Assignee:

Robert Bosch GmbH, Stuttgart, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60T 8/36 (2006.01); B60T 13/14 (2006.01); B60T 13/68 (2006.01); B60T 8/32 (2006.01);
U.S. Cl.
CPC ...
B60T 13/142 (2013.01); B60T 8/3225 (2013.01); B60T 8/368 (2013.01); B60T 13/148 (2013.01); B60T 13/686 (2013.01);
Abstract

To obtain a hydraulic pressure control unit and a straddle-type vehicle brake system, each of which can answer a request for downsizing. The straddle-type vehicle brake system has a hydraulic circuit that includes: a primary channel through which brake fluid in a master cylinder is delivered to a wheel cylinder; a secondary channel through which the brake fluid in the wheel cylinder is released to a primary channel intermediate portion; and a supply channel that supplies the brake fluid to a secondary channel intermediate portion. In a state where a surface on which a motorof a base bodyin the hydraulic pressure control unit is vertically provided is seen from the front, an opening for a first valvethat controls a flow rate on the wheel cylinder side of the primary channel intermediate portion and an opening for a second valvethat controls a flow rate on an upstream side of the secondary channel intermediate portion overlap a first straight line L, and an opening for a third valvethat controls a flow rate on the master cylinder side of the primary channel intermediate portion and an opening for a fourth valvethat controls a flow rate of the supply channel overlap a second straight line Lthat crosses the first straight line Lat a right angle.


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