US 11,703,098 B2
Piston assembly with adjuster
Kamil Babicki, Paczków (PL); and Maciej Krulak, Warsaw (PL)
Assigned to GOODRICH CORPORATION, Charlotte, NC (US)
Filed by Goodrich Corporation, Charlotte, NC (US)
Filed on Jun. 9, 2021, as Appl. No. 17/343,167.
Claims priority of application No. 434320 (PL), filed on Jun. 15, 2020.
Prior Publication US 2021/0388877 A1, Dec. 16, 2021
Int. Cl. F16D 65/54 (2006.01); B64C 25/44 (2006.01); F16D 65/18 (2006.01); F16D 121/04 (2012.01); F16D 125/06 (2012.01)
CPC F16D 65/543 (2013.01) [B64C 25/44 (2013.01); F16D 65/18 (2013.01); F16D 2121/04 (2013.01); F16D 2125/06 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A piston assembly for engaging two selectively engageable parts comprising:
a housing defining a piston cylinder, the housing comprising a main body housing defining a chamber and an end cap positioned at a distal end of the chamber of the main body housing adjacent to a pressure plate;
a piston positioned within the chamber; and
an adjuster assembly comprising:
a piston stroke limiter configured to limit a length of a return stroke of the piston from an extended stroke position and a retracted stroke position;
a crushable body acting between the piston and the piston stroke limiter, the crushable body being arranged to reduce in axial length when a length of an extension stroke exceeds a length of a retraction stroke to maintain the length of the return stroke; and
an extension stroke stop defined by a radial surface of the end cap and a retraction stroke stop defined by a radial surface at the distal end of the chamber of the main body housing adjacent to the pressure plate, wherein the piston stroke limiter comprises a limiting member movable in an axial direction between the extension stroke stop and the retraction stroke stop.