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:
May. 17, 1983
Filed:
Mar. 11, 1981
Seiji Sumikawa, Saitama, JP;
Kazuo Utsugi, Saitama, JP;
Diesel Kiki Co., Ltd., Saitama, JP;
Abstract
A heater unit for use in an air conditioner for automotive vehicles comprises: a casing formed therein with an air inlet passage, a discharging air passage communicating the air inlet passage with an upper or face-level air outlet or a floor air outlet, a heating air passage extending from the air inlet passage to the inlet of a heater core, and a hot air passage extending from the outlet of the heater core and terminating at least in a side wall of the heater core where it intersects with the discharging air passage; a temperature adjusting damper for adjusting the ratio of air being supplied from the air inlet passage to the discharging air passage and air being supplied from the air inlet passage to the heating air passage; and an auxiliary damper arranged at the intersection of the air discharge passage with the hot air passage or in its vicinity for interrupting the communication between the latter two passages. The auxiliary damper is adapted to be in a position to interrupt the communication of the air discharge passage with the hot air passage when the temperature adjusting damper is in the maximum cooling position, and in a position to allow the communication between the two passages when the temperature adjusting damper is in either of the maximum heating position and an intermediate position between the maximum heating position and the minimum cooling position.