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. 10, 1991
Filed:
Jul. 10, 1990
Peter D Waters, San Diego, CA (US);
John M Champagne, Seattle, WA (US);
Sundstrand Corporation, Rockford, IL (US);
Abstract
A superheat sensor (10, 100) for sensing the superheat of a fluid (14) flowing through a fluid channel (16) in accordance with the invention includes an aperture (18) within the fluid channel; a sensor body (20) engaging the aperture with a fluid tight seal (26) between the body and the aperture, the sensor body having a sensor body channel (44) in fluid communication with fluid flowing within the fluid channel; a pressure sensor (22) contained within the sensor body having a pressure responsive element in fluid communication with the fluid flowing through the fluid channel for producing an electrical signal representative of pressure of fluid flowing in the fluid channel; a temperature sensor (52) connected to the sensor body having at least one surface in fluid communication with the fluid flowing through the fluid channel for producing an electrical signal representation of temperature of fluid flowing in the fluid channel contacting the at least one surface; and a superheat calculator (56), responsive to the electrical signals representative of pressure and temperature, for producing, a superheat signal representative of the superheat of the fluid flowing within the fluid passage.