US 12,129,812 B2
Engine apparatus and method for operation
Kevin Michael VandeVoorde, West Chester, OH (US); Joshua Tyler Mook, Cincinnati, OH (US); Aigbedion Akwara, Cincinnati, OH (US); Jason Joseph Bellardi, Fairfield, OH (US); Mohammed El Hacin Sennoun, West Chester, OH (US); Mary Kathryn Thompson, Fairfield Township, OH (US); Scott Douglas Waun, Loveland, OH (US); Michael Thomas Gansler, Mason, OH (US); and Michael Robert Notarnicola, Cincinnati, OH (US)
Assigned to HYLIION HOLDINGS CORP, Cedar Park, TX (US)
Appl. No. 17/603,151
Filed by HYLIION HOLDINGS CORP, Cedar Park, TX (US)
PCT Filed May 20, 2020, PCT No. PCT/US2020/033710
§ 371(c)(1), (2) Date Oct. 12, 2021,
PCT Pub. No. WO2020/236877, PCT Pub. Date Nov. 26, 2020.
Claims priority of provisional application 62/850,599, filed on May 21, 2019.
Claims priority of provisional application 62/850,623, filed on May 21, 2019.
Claims priority of provisional application 62/850,678, filed on May 21, 2019.
Claims priority of provisional application 62/850,692, filed on May 21, 2019.
Claims priority of provisional application 62/850,701, filed on May 21, 2019.
Prior Publication US 2022/0195959 A1, Jun. 23, 2022
Int. Cl. F02G 1/044 (2006.01); B33Y 80/00 (2015.01); F02G 1/04 (2006.01); F02G 1/043 (2006.01); F02G 1/047 (2006.01); F02G 1/05 (2006.01); F02G 1/053 (2006.01); F02G 1/055 (2006.01); F02G 1/057 (2006.01); F02G 3/00 (2006.01); F23R 3/00 (2006.01); F28D 9/04 (2006.01); F28D 21/00 (2006.01); F28F 7/02 (2006.01); F28F 13/00 (2006.01); F28F 13/14 (2006.01)
CPC F02G 1/044 (2013.01) [B33Y 80/00 (2014.12); F02G 1/04 (2013.01); F02G 1/043 (2013.01); F02G 1/047 (2013.01); F02G 1/05 (2013.01); F02G 1/053 (2013.01); F02G 1/055 (2013.01); F02G 1/057 (2013.01); F02G 3/00 (2013.01); F23R 3/005 (2013.01); F28D 9/04 (2013.01); F28F 7/02 (2013.01); F28F 13/003 (2013.01); F28F 13/14 (2013.01); F02G 1/0435 (2013.01); F02G 2243/00 (2013.01); F02G 2244/00 (2013.01); F02G 2244/08 (2013.01); F02G 2244/50 (2013.01); F02G 2244/52 (2013.01); F02G 2244/54 (2013.01); F02G 2250/00 (2013.01); F02G 2254/10 (2013.01); F02G 2254/18 (2013.01); F02G 2257/00 (2013.01); F02G 2258/10 (2013.01); F02G 2270/40 (2013.01); F02G 2270/45 (2013.01); F02G 2270/80 (2013.01); F02G 2280/10 (2013.01); F28D 2021/0026 (2013.01); F28F 2210/10 (2013.01); F28F 2250/04 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A system for energy conversion, the system comprising:
a closed cycle engine containing a working fluid, the closed cycle engine comprising;
a first chamber defining an expansion chamber;
a second chamber defining a compression chamber each separated by a piston attached to a connection member of a piston assembly;
a heater body in thermal communication with the first chamber;
a cold side heat exchanger in thermal communication with the second chamber;
a third chamber defined within the piston, wherein the third chamber is in selective flow communication with the first chamber, the second chamber, or both,
wherein the piston comprises a folded cross-sectional member positioned within the third chamber,
wherein the piston comprises a first monolithic piece and a second monolithic piece, the second monolithic piece comprising the folded cross-sectional member, and
wherein the first monolithic piece is positioned proximate to the first chamber, and wherein the first monolithic piece separates the first chamber and the third chamber within the piston.