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. 27, 2002
Filed:
Feb. 24, 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, 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 housing and the low pressure fresh air inlet channel and the high pressure charge air channel being enclosed in an air housing, and each of all four channels communicating with the rotor through sector-shaped openings in their respective housings. The sector-shaped openings of the high pressure charge air channels are adjustably arranged in order to allow an adjustment of the process over the entire performance field of the internal combustion engine. For a further, even better adjustment of the process, the ratio of the total opening width of the high pressure channels to the total opening width of the low pressure channels is equal to or less th 1:3.25 while the total opening width of the high pressure channels amounts to 45° at the most. A further improvement is obtained by the fact that the air housing and/or the rotor casing are provided with a water cooling system.