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:
Jun. 06, 2000
Filed:
Nov. 04, 1998
Applicant:
Inventors:
Stephen Johnston, Redford, MI (US);
Kevin J Laboe, Birmingham, MI (US);
Assignee:
DaimlerChrylser Corporation, Auburn Hills, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01P / ;
U.S. Cl.
CPC ...
123 4111 ; 123 4112 ; 123 4149 ; 165 51 ;
Abstract
A cooling fan system includes an engine driven mechanical fan and an electrically driven fan. The mechanical fan and the electrical fans are placed in series within a common shroud that directs air between them. In one application, the electrical fan generates an axially directed air flow and the mechanical fan produces a radially directed air flow. The electrical fan is rotated counter to the mechanical fan.