US 11,655,816 B2
Fluid working systems
Elliott Gruber, Atlanta, GA (US); and Luke Wadsley, Ames, IA (US)
Assigned to Danfoss Power Solutions GmbH & Co. OHG, Neumunster (DE)
Filed by Danfoss Power Solutions GmbH & Co. OHG, Neumunster (DE)
Filed on May 8, 2015, as Appl. No. 14/707,727.
Prior Publication US 2016/0327038 A1, Nov. 10, 2016
Int. Cl. F04C 15/00 (2006.01); F04C 2/12 (2006.01); F04C 15/06 (2006.01); F04C 29/12 (2006.01); F04C 29/00 (2006.01); F04C 29/06 (2006.01); F04B 53/16 (2006.01); F04C 2/02 (2006.01); F04C 2/16 (2006.01); F04C 2/18 (2006.01); F04C 2/344 (2006.01); F04C 18/02 (2006.01); F04C 18/16 (2006.01); F04C 18/18 (2006.01); F04C 18/12 (2006.01); F04C 18/344 (2006.01); F04B 11/00 (2006.01); F04B 39/12 (2006.01)
CPC F04C 15/0049 (2013.01) [F04B 11/00 (2013.01); F04B 11/0091 (2013.01); F04B 39/12 (2013.01); F04B 53/16 (2013.01); F04C 2/025 (2013.01); F04C 2/126 (2013.01); F04C 2/16 (2013.01); F04C 2/18 (2013.01); F04C 2/344 (2013.01); F04C 15/064 (2013.01); F04C 18/0215 (2013.01); F04C 18/126 (2013.01); F04C 18/16 (2013.01); F04C 18/18 (2013.01); F04C 18/344 (2013.01); F04C 29/0035 (2013.01); F04C 29/063 (2013.01); F04C 29/124 (2013.01); F05C 2253/14 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A fluid working system for a working fluid including a positive displacement machine, said positive displacement machine comprising:
at least one working chamber defined by an interior surface and, at least two, fluid port means allowing said working fluid to flow into and out of said working chamber,
displacement means within, or defined by, said working chamber to displace, or be actuated by, said working fluid from one fluid port means to another,
wherein the fluid working system has associated therewith a compliance volume elastically deforming due to pressure fluctuations in said working fluid to thereby smooth said pressure fluctuations of said working fluid within said fluid working system;
wherein the compliance volume is in fluid communication with said working fluid,
wherein a volume of material of the compliance volume is held in place by means of one or more protrusions from the interior surface of the working chamber, the one or more protrusions extending into the compliance volume; and
wherein the compliance volume does not displace the displacement means.