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:
Oct. 20, 1981
Filed:
Sep. 11, 1979
Herbert Schleiermacher, Bruhl, DE;
Klockner-Humboldt-Deutz Aktiengesellschaft, Cologne, DE;
Abstract
A crankcase ventilating device for reciprocating piston internal combustion engines, in which a connecting line between the crankcase and the intake conduit is controlled by a control valve including a spring-loaded control piston, which piston is axially displaceable and has one of its end faces adapted to be actuated upon by the pressure in the crankcase whereas its other end face is adapted to be actuated upon an ambient pressure. The control piston is acted upon by the ambient pressure through a throttle opening ahead of which, when looking in the direction of flow of ambient air through the throttle opening to the control piston, there is arranged a separating chamber having an inlet opening communicating with ambient air.