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：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：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：US20200182167A1

公开(公告)日：2020-06-11

申请号：US16692795

申请日：2019-11-22

Applicant: Polaris Industries Inc.

Inventor： James H. BUCHWITZ ,  Darren J. HEDLUND

IPC: F02D31/00 ,  F02B37/18 ,  F02B57/06 ,  F01N13/10

Abstract: A system and method of operating the same includes an engine speed sensor determining an engine speed, an exhaust gas bypass valve, an exhaust gas bypass valve actuator coupled to the exhaust gas bypass valve and a controller. The controller partially opens the exhaust gas bypass valve with a first predetermined effective area greater than fully closed when the engine speed is at idle. The controller determines an acceleration event, holding the exhaust gas bypass valve open at least a second predetermined effective area greater than fully closed in response to the acceleration event.

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：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.