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:
Jan. 12, 2010
Filed:
Jul. 01, 2005
Applicant:
David James Haugen, Ann Arbor, MI (US);
Inventor:
David James Haugen, Ann Arbor, MI (US);
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02B 33/44 (2006.01); F02B 37/013 (2006.01); F02D 23/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A multi-stage turbocharging system recovers exhaust energy that is conventionally lost in bypassing exhaust flow from one stage to another in a multi-stage turbocharging system. The exhaust energy is preserved through converting a portion of the exhaust energy of the bypassed flow from pressure to kinetic energy (velocity) by passing the bypassed flow through a VGT vane outlet or other variable geometry valve/nozzle, and then not allowing the accelerated flow to dissipate energy before reaching the subsequent stage's turbine wheel, where the accelerated flow may then be converted to a mechanical rotational force by the lower pressure turbine's wheel.