公开(公告)号：US20200182140A1

公开(公告)日：2020-06-11

申请号：US16692470

申请日：2019-11-22

Applicant: Polaris Industries Inc.

Inventor： James H. BUCHWITZ ,  Darren J. HEDLUND ,  Jon P. BRANDT ,  Chad A. DALE ,  Lucas R. SALFER ,  Reed A. HANSON ,  Sean M. TRIHEY ,  Derek D. ZIMNEY

IPC: F02B37/18 ,  F02B57/06 ,  F02M26/41 ,  F01N13/10

Abstract: An engine system comprises a two stroke engine, an exhaust manifold, a tuned pipe coupled to the exhaust manifold and a turbocharger coupled to the engine. The turbocharger comprises a turbine inlet coupled to the exhaust manifold through the tuned pipe, and a turbine outlet coupled to an exhaust pipe. A silencer is coupled to the exhaust pipe. A bypass pipe has a first end coupled to the tuned pipe and a second end bypassing the turbine outlet and a wastegate disposed in the bypass pipe.

公开(公告)号：US20200182142A1

公开(公告)日：2020-06-11

申请号：US16692724

申请日：2019-11-22

Applicant: Polaris Industries Inc.

Inventor： Derek D. ZIMNEY ,  James H. BUCHWITZ ,  Lucas R. SALFER ,  Reed A. HANSON ,  Darren J. HEDLUND ,  Sean M. TRIHEY ,  Jon P. BRANDT ,  Chad A. DALE

IPC: F02B37/18 ,  F02B75/02 ,  F01N1/02 ,  B62M27/02 ,  B62M9/00

Abstract: A two-stroke engine system has a two stroke engine with an exhaust manifold, a tuned pipe coupled to the exhaust manifold, a stinger coupled to the tuned pipe and a turbocharger coupled to the stinger has a turbine portion having a turbine wheel having an inducer area and a turbine exducer area. A wastegate is in communication with the turbocharger. The wastegate comprises a port area greater than about 37% of the turbine exducer area.

公开(公告)号：US20210310426A1

公开(公告)日：2021-10-07

申请号：US17145297

申请日：2021-01-09

Applicant: Polaris Industries Inc.

Inventor： Dallas J. Blake ,  James H. BUCHWITZ ,  Lucas R. SALFER ,  Steven R. HANSON ,  Joseph D. THARALDSON ,  Darren J. HEDLUND ,  Reed A. HANSON ,  Derek D. ZIMNEY ,  James A. BARCZAK ,  Chad A. DALE ,  Daniel E. ERICKSON ,  Jon P. BRANDT ,  Alexander M. HETTEEN

IPC: F02D23/00 ,  F02B37/18 ,  B62J50/21 ,  F01N13/18 ,  F02D41/10

Abstract: A system and method of controlling a turbocharged engine system includes receiving a boost mode selection signal and controlling the turbocharged engine system in response to the boost mode selection signal.

公开(公告)号：US20200182141A1

公开(公告)日：2020-06-11

申请号：US16692628

申请日：2019-11-22

Applicant: Polaris Industries Inc.

Inventor： James H. BUCHWITZ ,  Darren J. HEDLUND ,  Jon P. BRANDT ,  Reed A. HANSON ,  Lucas R. SALFER ,  Derek D. ZIMNEY ,  Sean M. TRIHEY

IPC: F02B37/18 ,  F02B57/06 ,  F01N13/10

Abstract: An engine system and method of operating the same includes a two stroke engine, an exhaust manifold coupled to the two-stroke engine, a tuned pipe coupled to the exhaust manifold coupled to the exhaust manifold, a stinger pipe coupled to the tuned pipe, a silencer coupled to the tuned pipe and an exhaust pipe, and an exhaust bypass valve. Exhaust gases are directed from the two stroke engine through an exhaust manifold and through a tuned pipe. An opening of the exhaust bypass valve is changed to redirect exhaust gases away from the tuned pipe to change a pressure within the tuned pipe. In response to changing the opening of the exhaust bypass valve, the airflow through the engine is changed.

公开(公告)号：US20200182139A1

公开(公告)日：2020-06-11

申请号：US16692336

申请日：2019-11-22

Applicant: Polaris Industries Inc.

Inventor： James H. BUCHWITZ ,  Ralph W. LAUZZE, III ,  Eric L. GAUSEN ,  Lucas R. SALFER ,  Jon P. BRANDT ,  Chad A. DALE ,  Darren J. HEDLUND ,  Reed A. HANSON ,  Derek D. ZIMNEY

IPC: F02B37/18 ,  F02B37/16 ,  F02B57/06 ,  F02B31/06

Abstract: An exhaust gas diverter valve coupled within a pipe comprises a housing having a passage therethrough, a valve member rotatably coupled within the housing the valve member rotates about a valve axis. A first valve seat mat be disposed partially circumferentially within said passage and extending radially inwardly.