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:
Jul. 19, 2022
Filed:
Sep. 27, 2019
Toyota Motor Engineering & Manufacturing North America, Inc., Plano, TX (US);
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Tenghua Shieh, Ann Arbor, MI (US);
Takeo Yamaguchi, Toyota, JP;
Gaohua Zhu, Ann Arbor, MI (US);
Debasish Banerjee, Ann Arbor, MI (US);
Swetha Minupuri, Farmington Hills, MI (US);
Toyota Motor Engineering & Manufacturing North America, Inc., Plano, TX (US);
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Abstract
A passive thermal management system is provided for a fuel cell stack, along with methods for maintaining a uniform temperature across a fuel cell stack during cold weather conditions. The system includes a plurality of fuel cells arranged as a fuel cell stack. The fuel cell stack includes a main body portion defining an exterior surface and having first and second opposing end walls. The system includes a first end frame component having a first phase change material in thermal communication with the first end wall. A second end frame component is provided having a second phase change material in thermal communication with the second end wall. An insulation layer is wrapped around the exterior surface of the main body portion and is provided in thermal communication with the plurality of fuel cells.