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:
Apr. 14, 2020
Filed:
Nov. 22, 2017
Thermo King Corporation, Minneapolis, MN (US);
Emerson Climate Technologies—transportation Solutions Aps, St. Louis, MO (US);
Thermo King Corporation, Minneapolis, MN (US);
Abstract
A refrigeration system for use in transport includes a compressor, a condenser, and an evaporator connected in series, an evaporator fan, a supply air temperature sensor, a return air temperature sensor, and a controller. The evaporator fan is configured to discharge supply air from the system to a refrigerated space. The supply air temperature sensor is configured to sense the supply air temperature of the supply air. The return air temperature sensor is configured to sense a return air temperature of return air returning from the refrigerated space to the system. The controller is programmed to determine a requirement for moderate heating and a requirement for increased heating based on the supply air temperature and the return air temperature, to activate the evaporator fan when the requirement for moderate heating is determined, and to increase a speed of the evaporator fan when the requirement for increased heating is determined.