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:
Jan. 21, 1986
Filed:
Sep. 10, 1984
Herbert Alf, Ludwigsburg, DE;
Rudolf Leipelt, Oberstenfeld, DE;
Rolf Fusser, Ingersheim, DE;
Helmut Spannbauer, Ludwigsburg-Ossweil, DE;
Filterwerk Mann & Hummel GmbH, Ludwigsburg, DE;
Abstract
An intake air temperature control device for mixture-compressing internal combustion engines having an inlet flapper proportioning the flows of cold and preheated raw air into a duct junction and into raw air mixing duct, the flapper-adjusting wax thermostat being arranged inside a thermostat chamber into which branch flows of cold and preheated raw air are admitted through two calibrated branch inlets. A narrow annular gap through which the combined branch flows must pass assures an integrated response of the thermostat to changing temperatures and air intake speeds. A lost-motion drive connection and a biasing member produce a full-load correction of the adjusted temperature. The flapper drive members may have valve edges which cooperate with the calibrated branch inlets to open and close the latter.