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：US20200182138A1

公开(公告)日：2020-06-11

申请号：US16691995

申请日：2019-11-22

Applicant: Polaris Industries Inc.

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

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

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.