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：US20210131366A1

公开(公告)日：2021-05-06

申请号：US17145295

申请日：2021-01-09

Applicant: Polaris Industries Inc.

Inventor： Dallas J. BLAKE ,  James H. BUCHWITZ ,  Lucas R. SALFER ,  Darren J. HEDLUND ,  Reed A. HANSON ,  Eric L. GAUSEN

IPC: F02D41/00 ,  F02B37/18

Abstract: A method and system for controlling a wastegate comprises determining a boost pressure target, measuring a boost pressure, determining a boost pressure error from the measured boost pressure and the boost pressure target, determining a wastegate position change based on boost pressure error, and changing the wastegate position corresponding to the wastegate position change.

公开(公告)号：US20210131343A1

公开(公告)日：2021-05-06

申请号：US17145317

申请日：2021-01-09

Applicant: Polaris Industries Inc.

Inventor： William J. Bryant ,  Derek D. ZIMNEY ,  Angus M. MORISON ,  Colton ROSS ,  Ross LIBERTY ,  Lucas R. SALFER ,  Sean M. TRIHEY ,  Darren J. HEDLUND ,  James H. BUCHWITZ

IPC: F02B37/18 ,  F02B37/02 ,  F01N1/24 ,  F01N1/00

Abstract: An exhaust system includes a housing comprising a first housing portion and a second housing portion separated by a common wall. The first housing portion has a first exhaust passage therethrough. The first exhaust passage has a first inlet receiving exhaust gasses from a turbocharger. The second housing portion has a second exhaust passage therethrough. The second exhaust passage has a second inlet receiving gasses from an exhaust bypass valve. The first passage and the second passage are non-intersecting within the housing.

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.

公开(公告)号：US20230349336A1

公开(公告)日：2023-11-02

申请号：US18346993

申请日：2023-07-05

Applicant: Polaris Industries Inc.

Inventor： Dallas J. BLAKE ,  James H. BUCHWITZ ,  Lucas R. SALFER

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

CPC classification number: F02D41/0007 ,  B62J50/21 ,  F01N13/1805 ,  F02B37/186 ,  F02D23/00 ,  F02D41/10 ,  F02D2200/101 ,  F02D2200/703 ,  F02B2075/025

Abstract: A method and system for controlling operation of a two-stroke engine having a turbocharger includes the two-stroke engine comprising an electronically controlled exhaust valve. A throttle position sensor generates a throttle position signal corresponding to a position of a throttle plate of a throttle. A boost box is coupled to the two-stroke engine. A boost box pressure sensor is coupled to the boost box and generates a boost box pressure signal corresponding to a pressure within the boost box. A controller is coupled to the boost box pressure signal controlling a position of the electronically controlled exhaust valve in response to the boost box pressure signal and the throttle position signal.

公开(公告)号：US20230243293A1

公开(公告)日：2023-08-03

申请号：US18133665

申请日：2023-04-12

Applicant: Polaris Industries Inc.

Inventor： James H. Buchwitz ,  Lucas R. SALFER ,  Derek ZIMNEY ,  Tim KELLER ,  Karsten SCHOLLE ,  Marcel SEMRAU ,  Clifton J. SEUSY

IPC: F02B37/18 ,  F02B75/02 ,  F02D9/08 ,  F02B37/16 ,  F02M35/10 ,  F02C5/00 ,  F02C6/06 ,  F02C9/18 ,  F02B37/02 ,  F02C6/12

CPC classification number: F02B37/186 ,  F02B37/16 ,  F02B37/025 ,  F02B37/162 ,  F02B37/164 ,  F02B75/02 ,  F02C5/00 ,  F02C6/06 ,  F02C6/12 ,  F02C9/18 ,  F02D9/08 ,  F02M35/10026 ,  F02M35/10091 ,  F02M35/10157 ,  F02B2075/025 ,  F05D2220/40

Abstract: A turbocharger and method of controlling the same includes a turbine housing comprising an inlet and an outlet, turbine wheel coupled to a shaft. The turbine housing comprising a first scroll and a second scroll for fluidically coupling the inlet and the turbine wheel. The first scroll has a first end adjacent the inlet and a second end adjacent the turbine wheel. The second scroll has a third end adjacent the inlet and a fourth end adjacent the turbine wheel. An exhaust gas diverter valve is coupled to the turbine housing restricting flow into the first scroll or the second scroll.

公开(公告)号：US20220316412A1

公开(公告)日：2022-10-06

申请号：US17831828

申请日：2022-06-03

Applicant: Polaris Industries Inc.

Inventor： James H. BUCHWITZ ,  Dallas J. BLAKE ,  Lucas R. SALFER ,  Alexander M. HETTEEN ,  Reed A. HANSON ,  Darren J. HEDLUND ,  Daniel E. ERICKSON ,  Chad A. DALE ,  Derek ZIMNEY

IPC: F02D9/10 ,  B62J50/21 ,  F01N13/18 ,  F02B37/18 ,  F02D23/00 ,  F02D41/10 ,  F02D13/02

Abstract: A method and system for controlling operation of a two-stroke engine having a turbocharger includes the two-stroke engine comprising an electronically controlled exhaust valve. A throttle position sensor generates a throttle position signal corresponding to a position of a throttle plate of a throttle. A boost box is coupled to the two-stroke engine. A boost box pressure sensor is coupled to the boost box and generates a boost box pressure signal corresponding to a pressure within the boost box. A controller is coupled to the boost box pressure signal controlling a position of the electronically controlled exhaust valve in response to the boost box pressure signal and the throttle position signal.

公开(公告)号：US20200182164A1

公开(公告)日：2020-06-11

申请号：US16696198

申请日：2019-11-26

Applicant: Polaris Industries Inc.

Inventor： James H. BUCHWITZ ,  Ralph W. LAUZZE, III ,  Eric L. GAUSEN ,  Andreas H. BILEK ,  Dallas J. BLAKE ,  Derek D. ZIMNEY ,  Lucas R. SALFER ,  Ron DANIELSON

IPC: F02D19/02 ,  F02M59/20 ,  F02D31/00 ,  F02B75/02

Abstract: A method and system for operating a two-stroke engine includes a fuel system comprising a fuel pressure sensor, fuel temperature sensor and a fuel injector and a controller in communication with the fuel pressure sensor and fuel temperature sensor. The controller controls the fuel injector with a fuel pulsewidth determined by determining a beginning time of a window for measuring fuel pressure, determining an ending time of the window, measuring fuel pressure between the beginning time and the ending time, determining a fuel pulsewidth based on the fuel pressure and fuel temperature and injecting fuel into the two-stroke engine in response to a desired fuel mass.