US 11,655,039 B2
Turbine housing for a two wheel air cycle machine
Darryl A. Colson, West Suffield, CT (US); Eric Chrabascz, Longmeadow, MA (US); and Clarence J. Wytas, Stafford Springs, CT (US)
Assigned to Hamilton Sundstrand Corporation, Charlotte, NC (US)
Filed by Hamilton Sundstrand Corporation, Charlotte, NC (US)
Filed on Mar. 31, 2021, as Appl. No. 17/218,545.
Claims priority of provisional application 63/004,820, filed on Apr. 3, 2020.
Prior Publication US 2021/0309372 A1, Oct. 7, 2021
Int. Cl. B64D 13/06 (2006.01); F04D 29/057 (2006.01); F04D 29/12 (2006.01); F04D 29/58 (2006.01); F04D 29/42 (2006.01); F01D 25/24 (2006.01)
CPC B64D 13/06 (2013.01) [F04D 29/057 (2013.01); F04D 29/124 (2013.01); F04D 29/4206 (2013.01); F04D 29/584 (2013.01); B64D 2013/0618 (2013.01); B64D 2013/0648 (2013.01); F01D 25/24 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A turbine housing for a two-wheel air cycle machine, the turbine housing comprising:
a first side of the turbine housing;
a second side of the turbine housing;
a central axis;
an outer housing portion comprising:
an inner surface of the outer housing portion;
an outer surface of the outer housing portion comprising:
a mounting flange;
a first parallel wall surface substantially parallel to the central axis with a first end and a second, the first end of the first parallel wall surface being connected to the mounting flange;
a frustoconical wall surface with a first end and a second end, the first end of the frustoconical wall surface being connected to the second end of the first parallel wall surface;
a second parallel wall surface substantially parallel to the central axis with a first end and a second end, the first end of the second parallel wall surface being connected to the second end of the frustoconical wall surface; and
mounting tabs extending from the outer surface of the outer housing portion at the second end of the second parallel wall surface;
a cooling inlet extending from the outer surface of the outer housing portion; and
a cooling outlet opposite the cooling inlet and extending from the outer surface of the outer housing portion;
an inner housing portion comprising:
a thrust bearing support surface substantially parallel to the second side of the turbine housing; and
a journal bearing bore extending between the first side of the turbine housing and the thrust bearing support surface;
a plurality of struts between the inner housing portion and the outer housing portion; and
a plurality of cooling slots between the plurality of struts.