US 11,719,187 B2
Air-fuel system for a circulating piston engine
Walter T. Bonin, Marlborough, MA (US)
Assigned to WB Development Company, LLC, Marlborough, MA (US)
Filed by WB Development Company, LLC, Marlborough, MA (US)
Filed on Jun. 3, 2022, as Appl. No. 17/832,028.
Application 17/832,028 is a continuation of application No. 16/671,854, filed on Nov. 1, 2019, granted, now 11,352,977.
Claims priority of provisional application 62/754,186, filed on Nov. 1, 2018.
Prior Publication US 2022/0290629 A1, Sep. 15, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. F02F 11/00 (2006.01); F02B 23/00 (2006.01); F01C 1/07 (2006.01); F15B 15/12 (2006.01); F02F 5/00 (2006.01); F01C 19/08 (2006.01); F02B 53/06 (2006.01); F02B 55/02 (2006.01)
CPC F02F 11/007 (2013.01) [F01C 1/07 (2013.01); F01C 19/08 (2013.01); F02B 23/00 (2013.01); F02B 53/06 (2013.01); F02B 55/02 (2013.01); F02F 5/00 (2013.01); F15B 15/125 (2013.01)] 22 Claims
OG exemplary drawing
 
1. An engine, comprising:
a housing;
a combustion assembly carried by the housing, the combustion assembly comprising:
an annular bore defined by the engine, and
a combustion piston assembly disposed within the annular bore, the combustion piston assembly comprising:
a set of pistons;
a sealing ring connected to each piston of the set of pistons, the sealing ring configured to provide selective access between the annular bore and at least one fluid conduit carried by the engine; and
at least one valve configured to move within the annular bore between a first position to define a travel path for at least one piston of the set of pistons and a second position to define a combustion chamber relative to the at least one piston of the set of pistons;
wherein the at least one valve comprises at least one rotary valve having a circular faceplate and a wall structure disposed at an outer periphery of the faceplate, a portion of the at least one rotary valve disposed within the annular bore such that the axis of rotation of the wall structure is substantially perpendicular to an axis of rotation of a piston of the combustion piston assembly.