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:
May. 01, 2012
Filed:
Jan. 13, 2009
Arthur Jeanson, Thaon les Vosges, FR;
Jean-luc Perrin, Thaon les Vosges, FR;
Jean-yves Bodin, Thaon les Vosges, FR;
Arthur Jeanson, Thaon les Vosges, FR;
Jean-Luc Perrin, Thaon les Vosges, FR;
Jean-Yves Bodin, Thaon les Vosges, FR;
Honeywell International Inc., Morristown, NJ (US);
Abstract
A fluid pressure actuator for a turbocharger system's turbine bypass valve comprises a piston slidable in a cylinder so as to define a chamber containing a compression spring assembly operable to exert a spring force on the piston. The cylinder can be selectively subjected to a vacuum or pressure for exerting a fluid pressure force on the piston in a direction opposite from the spring force. The spring assembly comprises a first spring arranged to be compressed by the piston throughout a first range of motion of the piston in a compression direction, and at least a second spring arranged to be compressed by the piston throughout a second range of motion that is smaller than and co-terminal with the first range of motion but to be uncompressed during an initial part of the first range of motion of the piston in the compression direction.