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:
Aug. 19, 1980
Filed:
Nov. 30, 1978
Herbert Schleiermacher, Bruhl, DE;
Klockner-Humboldt-Deutz Aktiengesellschaft, Cologne, DE;
Abstract
A venting valve for a crankcase of a reciprocable piston internal combustion engine with a valve housing which is divided into three chambers by way of a movable wall and a hollow cylindrical valve member which is sealingly connected to the movable wall. The first one of these three chambers is arranged for communication with the surrounding or environment whereas the second chamber has a connection for communication with the crankcase, and the third chamber, which includes the inner chamber of the valve member, has a connection for communication with a suction conduit. The valve member in combination with its valve seat controls an opening between the second and third chambers. The connection for communication with the suction conduit forms the inner valve housing-connected support for the movable wall and is axially aligned with the valve member, and the connection for communication with the crankcase is located opposite the connection to the suction conduit and coaxially surrounds the valve member.