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. 02, 2025
Filed:
Dec. 28, 2022
Hitachi Industrial Equipment Systems Co., Ltd., Tokyo, JP;
Takehiro Matsuzaka, Tokyo, JP;
Masahiko Takano, Tokyo, JP;
HITACHI INDUSTRIAL EQUIPMENT SYSTEMS CO., LTD., Tokyo, JP;
Abstract
A gas compressor is capable of adjusting a temperature of a heat recovery liquid discharged from a waste-heat-recovery heat exchanger to a desired temperature at a low cost without providing a temperature adjusting valve in a passage of the heat recovery liquid. The gas compressor includes a heat exchange liquid temperature sensor for detecting the temperature Twof a heat exchange liquid discharged from a waste-heat-recovery heat exchanger, and a passage that allows at least part of a high-temperature fluid cooled by an air-cooled cooler to flow therethrough into a compressor. A controller has a heat exchange liquid temperature adjusting function to control the rotational speed of a cooling fan such that the temperature Twdetected by the heat exchange liquid temperature sensor gets closer to a predetermined target heat exchange liquid temperature Tw