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:
Jun. 21, 2016
Filed:
Feb. 27, 2015
Denso Corporation, Kariya, Aichi-pref., JP;
Hamanakodenso Co., Ltd., Kosai, Shizuoka-pref., JP;
DENSO CORPORATION, Kariya, JP;
HAMANAKODENSO CO., LTD., Kosai, JP;
Abstract
A solenoid device includes a plunger driven in an axial direction, a wall portion arranged to oppose the plunger in the axial direction, and a respiratory pore cover covering an opening of a respiratory pore of the wall portion. A volume variable chamber is defined between the plunger and the wall portion. The respiratory pore cover defines a communication space communicated to the respiratory pore, and an opening which causes the communication space to communicate with an exterior space. A volume of the communication space is larger than a predetermined volume of fluid that flows through the respiratory pore from or into the volume variable chamber by a predetermined movement of the plunger.