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.

Date of Patent:
Apr. 09, 2019

Filed:

May. 01, 2013
Applicant:

Nuovo Pignone Srl, Florence, IT;

Inventors:

Riccardo Bagagli, Florence, IT;

Leonardo Tognarelli, Florence, IT;

Assignee:

Nuovo Pignone SRL, Florence, IT;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F04B 7/00 (2006.01); F04B 39/10 (2006.01); F16K 31/524 (2006.01); F04C 14/24 (2006.01);
U.S. Cl.
CPC ...
F04B 7/0057 (2013.01); F04B 39/10 (2013.01); F04C 14/24 (2013.01); F16K 31/524 (2013.01);
Abstract

Cam actuated valves for compressors including mechanisms for changing an instant when the cam actuated valve is opened and/or a time interval during which the cam actuated valve is in an open state within the time range of a compression cycle. A reciprocating compressor has: a body including a compression chamber; a cam having an oblong portion, being located inside the body and being configured to be rotated around a rotation axis, to perform a rotation during each compression cycle; an actuating element located inside the body and configured to receive a linear displacement or an angular displacement due to the oblong portion of the cam; and a valve located on a flow path of the fluid toward or from the compression chamber and configured to be switched to an open state by the actuating element. The reciprocating compressor also includes a controller configured to adjust timing of the valve.


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