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.
Patent No.:
Date of Patent:
May. 22, 2001
Filed:
Dec. 10, 1999
Shigemitsu Nohira, Kariya, JP;
Aisin Seiki Kabushiki Kaisha, Kariya, JP;
Abstract
The present invention is directed to a hydraulic pressure control unit, which includes a housing having hydraulic passages defined therein, and a plurality of electromagnetic valves having valve mechanisms disposed in the hydraulic passages and solenoid coil portions mounted on one wall of the housing for actuating the valve mechanisms. The electromagnetic valves include four large electromagnetic valves provided with cylindrical solenoid coil portions, each having a relatively large diameter, and eight small electromagnetic valves provided with cylindrical solenoid coil portions, each having a relatively small diameter. And, two rows of four small electromagnetic valves aligned in a row are located in parallel with each other on the wall of the housing, and two rows of two large electromagnetic valves aligned in a row are located in parallel with the two rows of the four small electromagnetic valves. Each of the four large electromagnetic valves is located in substantial contact with two neighboring small electromagnetic valves in each row of the four small electromagnetic valves.