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:
Nov. 13, 2001
Filed:
Feb. 25, 2000
Urs Wenger, Langenthal, CH;
Roger Martin, Othmarsingen, CH;
Swissauto Engineering S.A., , CH;
Abstract
The gas-dynamic pressure wave machine which is destined for the charge air supply of an internal combustion engine comprises a rotor (,) with cells (,), a low pressure fresh air inlet channel (,), a high pressure charge air channel (,) leading to the internal combustion engine (,), a high pressure exhaust channel (,) coming from the internal combustion engine, and a low pressure exhaust channel (,), the low pressure exhaust channel (,) and the high pressure exhaust channel (,) being enclosed in a gas enclosure (,) and the low pressure fresh air inlet channel (,) and the high pressure charge air channel (,) being enclosed in an air enclosure (,). In order to eliminate the detrimental pressure pulsations, on one hand, and to increase the compression efficiency, on the other hand, a direct connection (,) is provided between the high pressure charge air channel (,) and the high pressure exhaust channel (,), which connection preferably comprises a nonreturn valve (,).