公开(公告)号：WO2015002924A1

公开(公告)日：2015-01-08

申请号：PCT/US2014/045006

申请日：2014-07-01

Applicant: DRESSER-RAND COMPANY ,  GROSSO, Glenn R.

Inventor： GROSSO, Glenn R.

IPC: F04D29/04 ,  F04D29/046

CPC classification number: F16C33/1065 ,  F04D17/122 ,  F04D29/04 ,  F04D29/046 ,  F04D29/053 ,  F04D29/057 ,  F04D29/063 ,  F16C17/02 ,  F16C33/02 ,  F16C37/00

Abstract: A rotary shaft and method for reducing non-uniform heating thereof are provided. The rotary shaft may include a tubular body having a longitudinal axis extending therethrough. An outer surface of the tubular body may define a groove at least partially extending radially inward from the outer radial surface toward the longitudinal axis of the tubular body to define a depth thereof. The rotary shaft may include a thermal barrier at least partially disposed in the groove and configured to absorb at least a portion of heat generated from rotation thereof.

Abstract translation: 提供了一种用于减少其不均匀加热的旋转轴和方法。 旋转轴可以包括具有延伸穿过其中的纵向轴线的管状体。 管状体的外表面可以限定从外径向内部至少部分地从管状体的纵向轴线向内延伸以限定其深度的凹槽。 旋转轴可以包括至少部分地布置在凹槽中并被构造成吸收由其旋转产生的热量的至少一部分的热障壁。

公开(公告)号：WO2021173124A1

公开(公告)日：2021-09-02

申请号：PCT/US2020/019779

申请日：2020-02-26

Applicant: DRESSER-RAND COMPANY

Inventor： GROSSO, Glenn R. ,  GROSSO, Brian

IPC: F04D29/053 ,  F04D29/08 ,  F04D29/10

Abstract: Rotor structure for a turbomachine, such as a centrifugal compressor is provided. Disclosed embodiments make use of venting/sealing arrangements effective for venting a tie bolt rotor so that, for example, an incipient leakage of a process fluid can be monitored. Additionally, in operation disclosed embodiments are effective to, for example, convey to the tie bolt a pressurized sealing fluid effective for reducing the likelihood of process fluid escaping to the atmosphere.