Title:
【発明の名称】回転機械
Document Type and Number:
Japanese Patent JP2001506338
Kind Code:
A
Abstract:
A rotary hydraulic machine (10) for incorporation in a drill string (92) of a well formation (86). The machine (10) is particularly adapted to act as a motor and includes an outer housing (11) of a generally cylindrical configuration having a radial inner surface (12). Rotatably mounted within the housing (11) is a shaft assembly (13) including a shaft (14) upon which a stator (15) is mounted. The stator (15) includes a plurality of lobes (16) which have a maximum radius approximately equal to the radius of the surface (12). A plurality of gates (35) are radially movably mounted in the housing (11) and engage the stator (15). The shaft (14) is hollow to provide for the delivery and the removal of hydraulic fluid to the working chambers (45 and 46) of the machine (10).
Inventors:
Dyktinski, Benjamin, Francis
Wheeler, Daryl
Lau, Louis
Wheeler, Daryl
Lau, Louis
Application Number:
JP51784698A
Publication Date:
May 15, 2001
Filing Date:
October 13, 1997
Export Citation:
Assignee:
Merlin Corporation Pte. Ltd.
International Classes:
F01C21/08; F03C2/00; F01C1/356; F04C2/356; (IPC1-7): F04C2/356; F03C2/00
Attorney, Agent or Firm:
Masao Okabe (13 others)