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:
Oct. 29, 2002
Filed:
May. 03, 2001
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A heat-sensitive flow rate sensor that is high in productivity, superior in accuracy of flow rate measurement and sensitivity. A bottom face of a concave accommodating portion of an supporting member is provided with an adhesion face for fastening a flow rate-detecting element thereon with an adhesive , installation faces for holding the flow rate-detecting element thereon, and a protruding face for blocking in a raised manner the whole area of a cavity on the underside of the flow rate-detecting element . As a result of employing this construction, even when increasing an intake fluid to a large amount of flow, the protruding face blocks the vicinity of the cavity . Therefore, the fluid to be measured hardly flows into the gap between the underside of the flow rate-detecting element and the supporting member . Consequently, accuracy in flow rate measurement is improved. Furthermore, the protruding face is formed slightly larger than the area of the cavity in the flow rate-detecting element , thereby preventing an underflow. As a result, assembling the flow rate-detecting element becomes easier, which is suitable for large-scale production.