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. 17, 1990
Filed:
Oct. 21, 1988
Toyo Sumi, Shimizu, JP;
Motoshi Miyanaka, Shimizu, JP;
Keiji Sato, Shizuoka, JP;
Yoshiki Hayata, Shimizu, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
An air conditioner in which an outdoor unit having a compressor, a condenser, and expansion valve and an outdoor fan and an indoor unit having an evaporator and an indoor fan are connected by a piping to form a refrigerating cycle, and which has an outdoor air introducing mechanism including a damper disposed in an air flow path of the indoor fan of the indoor unit so as to enable introduction of outdoor air into the room. The air conditioner has: a comparison means for periodically comparing the room temperature with a room temperature set point; an alteration means for altering, on the basis of the output from the comparison means, a mixed air temperature initial set point preliminarily determined; and a control means for controlling the operations of the outdoor air introduction damper, the outdoor and indoor fans and the compressor.