US 9,810,233 B2
Sealing arrangement for axially split turbomachines
Carlo Del Vescovo, Florence (IT); Donato Antonio Rip, Florence (IT); and Fabrizio Milone, Florence (IT)
Assigned to Nuovo Pignone Srl, Florence (IT)
Appl. No. 14/653,943
Filed by Nuovo Pignone Srl, Florence (IT)
PCT Filed Dec. 17, 2013, PCT No. PCT/EP2013/076805
§ 371(c)(1), (2) Date Jun. 19, 2015,
PCT Pub. No. WO2014/095787, PCT Pub. Date Jun. 26, 2014.
Claims priority of application No. FI2012A0289 (IT), filed on Dec. 21, 2012.
Prior Publication US 2015/0345503 A1, Dec. 3, 2015
Int. Cl. F04D 29/12 (2006.01); F04D 1/06 (2006.01); F04D 17/12 (2006.01); F04D 29/043 (2006.01); F04D 29/053 (2006.01); F04D 29/22 (2006.01); F04D 29/28 (2006.01); F04D 29/42 (2006.01); F04D 29/62 (2006.01); F01D 25/24 (2006.01); F02C 7/28 (2006.01); F04D 29/08 (2006.01)
CPC F04D 29/12 (2013.01) [F01D 25/243 (2013.01); F02C 7/28 (2013.01); F04D 1/06 (2013.01); F04D 17/12 (2013.01); F04D 29/043 (2013.01); F04D 29/053 (2013.01); F04D 29/22 (2013.01); F04D 29/28 (2013.01); F04D 29/426 (2013.01); F04D 29/4206 (2013.01); F04D 29/62 (2013.01); F04D 29/086 (2013.01); F05D 2240/55 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An axially-split turbomachine comprising:
a casing comprising a first casing portion with a first contact surface and a second casing portion with a second contact surface;
a sealing arrangement between the first casing portion and the second casing portion;
a rotor arranged for rotation in the casing, the rotor comprising a shaft and at least one impeller mounted on the shaft; and
at least one shaft passageway through the casing, the shaft extending through the shaft passageway,
wherein the sealing arrangement comprises:
a linear sealing member, extending between the first contact surface and the second contact surface, and
at least one sealing ring portion surrounding the at least one shaft passageway,
wherein the at least one sealing ring portion and the linear sealing member form a continuous sealing body.