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. 31, 1990
Filed:
Feb. 17, 1989
Applicant:
Inventor:
Wilfried Blotenberg, DinsLaken, DE;
Assignee:
MAN Gutehoffnungshutte GmbH, Oberhausen, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04D / ;
U.S. Cl.
CPC ...
415 27 ; 415-1 ;
Abstract
In the surge limit control for turbo compressors the amplification factor of the control device producing the control signal for a blow-off valve is varied according to the ascending gradient of the compressor's characteristic corresponding to the respective working point.