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:
Jul. 25, 2006
Filed:
Mar. 07, 2003
Urs Wenger, Langenthal, CH;
Roger Martin, Othmarsingen, CH;
Urs Wenger, Langenthal, CH;
Roger Martin, Othmarsingen, CH;
Swissauto Engineering S.A., , CH;
Abstract
A gas-dynamic pressure wave supercharger includes a multi-cell rotor, a fresh air inlet channel, a high pressure air channel leading to the engine, and high and low pressure exhaust channels, with the high and low pressure exhaust channels enclosed in a gas enclosure, and the fresh air inlet channel and the high pressure charge air channel enclosed in an air enclosure. The high pressure exhaust channel includes an enlarged portion on the rotor side from which a duct extends to the low pressure channel. The duct is so regulated that a part of the exhaust gas is always first conducted from the high pressure exhaust channel into the enlarged portion before additional exhaust gas is conducted through the duct from the high pressure exhaust channel to the low pressure exhaust channel. Improved fuel consumption results over the entire performance range of the engine, particularly in the partial load range.