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:
Dec. 29, 2020
Filed:
Sep. 20, 2019
Nidec Tosok Corporation, Kanagawa, JP;
Dongming Chen, Kanagawa, JP;
Tomohiko Nakanishi, Kanagawa, JP;
NIDEC TOSOK CORPORATION, Kanagawa, JP;
Abstract
Provided is an electric valve device which is capable of improving the accuracy of detecting whether there is a gas leakage from a blow-by gas passage and capable of detecting detachment of the electric valve device from a pipe of a fresh air passage. The electric valve device includes an inflow side pipe portion, an outflow side pipe portion, a barrier which partitions off the inflow side pipe portion from the outflow side pipe portion, a valve body which opens and closes an opening arranged on the barrier by moving in the axial direction, and a solenoid which drives the valve body. The inflow side pipe portion includes a bypass path which communicates with the outflow side pipe portion through a second opening separately from a passage which communicates with the outflow side pipe portion through a first opening used as the opening.