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:
Feb. 28, 2017
Filed:
Aug. 27, 2014
Honda Motor Co., Ltd., Tokyo, JP;
HONDA MOTOR CO., LTD., Tokyo, JP;
Abstract
In a control method of a differential pressure water electrolysis system, a reference water level of a gas-liquid separator for normal operations is set to discharge a liquid water stored in the gas-liquid separator to a discharge tube. A depressurization reference water level which is a lower water level than the reference water level is set to discharge the liquid water stored in the gas-liquid separator to the discharge tube upon depressurizing. A depressurization valve is opened to reduce pressure at a cathode side after operation of a differential pressure water electrolysis device has been stopped, in a state with voltage applied. A permissible water level upper limit value at which an open/close valve is opened is switched from the reference water level to the depressurization reference water level when the depressurization valve is opened.