US 12,018,611 B2
Turbocharger system for a two-stroke engine
Sean Trihey, Roseau, MN (US); Darren Hedlund, Roseau, MN (US); Reed Hanson, Roseau, MN (US); Lucas Salfer, Sabol, MN (US); James Buchwitz, Roseau, MN (US); and Derek Zimney, Roseau, MN (US)
Assigned to Polaris Industries Inc., Medina, MN (US)
Filed by Polaris Industries Inc., Medina, MN (US)
Filed on Sep. 16, 2021, as Appl. No. 17/476,761.
Application 17/476,761 is a division of application No. 16/691,995, filed on Nov. 22, 2019, granted, now 11,174,779.
Claims priority of provisional application 62/776,571, filed on Dec. 7, 2018.
Prior Publication US 2022/0003154 A1, Jan. 6, 2022
Int. Cl. F02B 37/18 (2006.01); F02B 37/02 (2006.01); F02B 37/16 (2006.01); F02B 75/02 (2006.01); F02C 5/00 (2006.01); F02C 6/06 (2006.01); F02C 6/12 (2006.01); F02C 9/18 (2006.01); F02D 9/08 (2006.01); F02M 35/10 (2006.01)
CPC F02B 37/186 (2013.01) [F02B 37/025 (2013.01); F02B 37/16 (2013.01); F02B 37/162 (2019.05); F02B 37/164 (2013.01); F02B 75/02 (2013.01); F02C 5/00 (2013.01); F02C 6/06 (2013.01); F02C 6/12 (2013.01); F02C 9/18 (2013.01); F02D 9/08 (2013.01); F02M 35/10026 (2013.01); F02M 35/10091 (2013.01); F02M 35/10157 (2013.01); F02B 2075/025 (2013.01); F05D 2220/40 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A system comprising:
an engine comprising a throttle body;
a turbocharger comprising a turbine portion and a compressor portion, the turbine portion driven by exhaust of the engine, the compressor portion driven by the turbine portion to pressurize air that is fed to a boost box;
the boost box directing air to the engine,
said turbocharger and said engine disposed on a first side of the boost box within a vehicle;
a bypass path coupling the boost box to ambient air outside the boost box by bypassing the compressor portion;
a one way valve disposed on a second side of the boost box opposite the engine and the turbocharger on the first side, the second side rearward relative to the front of the vehicle, said one way valve coupled in the bypass path communicating air through the one way valve when a first pressure in the boost box is lower than air pressure outside the boost box.