Entryway system including a divided volute turbocharger

An entryway system comprising:

• a divided volute turbocharger for receiving exhaust gas from an internal combustion engine and for delivering compressed air to the internal combustion engine, the internal combustion engine including a first set of cylinders and a second set of cylinders, with a relative pulse of the exhaust gas delivered from the first and second set of cylinders being generally equal for each exhaust stroke, said divided volute turbocharger comprising:
• a turbine housing comprising a turbine housing interior adapted to receive a turbine wheel having a plurality of turbine blades, with said turbine housing extending along a turbine housing axis,
• a first volute adapted for fluid communication with the internal combustion engine and said turbine housing interior for delivering exhaust gas from the first set of cylinders to said turbine housing interior,
• a second volute adapted for fluid communication with the internal combustion engine and said turbine housing interior for delivering exhaust gas from the second set of cylinders to said turbine housing interior independently of said first volute,
• a turbine housing outlet in fluid communication with said turbine housing interior, and
• a wall separating said first volute from said second volute, wherein said wall has a first wall surface facing said turbine housing axis;
• and
• a vane ring coupled to said turbine housing and disposed in said turbine housing interior between said first and second volutes and around said turbine wheel, wherein said vane ring comprises a vane divider wall further separating said first volute from said second volute, wherein said vane divider wall has a vane divider surface facing said first wall surface, wherein said vane ring comprises a plurality of vanes coupled to said vane divider wall, and wherein said plurality of vanes are fixed to said vane divider wall;
• and
• a pin coupled to said vane ring and said turbine housing for preventing rotation of said vane ring with respect to said turbine housing.

An entryway system comprising:

• a divided volute turbocharger for receiving exhaust gas from an internal combustion engine and for delivering compressed air to the internal combustion engine, the internal combustion engine including a first set of cylinders and a second set of cylinders, with a relative pulse of the exhaust gas delivered from the first and second set of cylinders being generally equal for each exhaust stroke, said divided volute turbocharger comprising:
• a turbine housing comprising a turbine housing interior adapted to receive a turbine wheel having a plurality of turbine blades, with said turbine housing extending along a turbine housing axis,
• a first volute adapted for fluid communication with the internal combustion engine and said turbine housing interior for delivering exhaust gas from the first set of cylinders to said turbine housing interior,
• a second volute adapted for fluid communication with the internal combustion engine and said turbine housing interior for delivering exhaust gas from the second set of cylinders to said turbine housing interior independently of said first volute,
• a turbine housing outlet in fluid communication with said turbine housing interior, and
• a wall separating said first volute from said second volute, wherein said wall has a first wall surface facing said turbine housing axis;
• a vane ring coupled to said turbine housing and disposed in said turbine housing interior between said first and second volutes and around said turbine wheel, wherein said vane ring comprises a vane divider wall further separating said first volute from said second volute, wherein said vane divider wall has a vane divider surface facing said first wall surface, and wherein said vane ring comprises a plurality of vanes coupled to said vane divider wall;
• and
• a pin coupled to said vane ring and said turbine housing for preventing rotation of said vane ring with respect to said turbine housing;
• wherein said wall comprises a tongue, with said tongue presenting said first wall surface, and wherein said pin is adjacent said first wall surface such that said pin is configured to be a leading edge of one of said vanes.