Title:
PUMP FOR OIL FIELD
Document Type and Number:
Japanese Patent JP2020197141
Kind Code:
A
Abstract:
To achieve further reduction of the frequency of the maintenance.SOLUTION: A pump for an oil field is disposed in a pipeline connected to an oil field, sends a stored object oil in a predetermined direction, and includes: a rotation part; a fixed part disposed at an outer periphery of the rotation part; a passage in which a portion formed in the rotation part is connected with a portion formed between the rotation part and the fixed part and in which the object oil flows; a thrust bearing which supports an axial load between the rotation part and the fixed part; and a supply pipeline which supplies a part of the object oil in the passage to the thrust bearing. The thrust bearing includes: a protruding part which is fixed to the outer periphery of the rotation part and rotates integrally with the rotation part; and a facing part which is fixed to the fixed part and faces an axial surface of the protruding part. A space between the protruding part and the facing part is filled with the object oil. In the protruding part, a surface facing the facing part is formed with a groove which moves to the radial outer side from the upstream side to the downstream side in a rotation direction and includes a downstream side end part opening to the radial outer side.SELECTED DRAWING: Figure 2
Inventors:
YOKOYAMA SHINPEI
KUNITAKE NOBUHIRO
HORI TAKUMI
TAKEI NORIHISA
SHINOHARA TANEHIRO
KUNITAKE NOBUHIRO
HORI TAKUMI
TAKEI NORIHISA
SHINOHARA TANEHIRO
Application Number:
JP2019102336A
Publication Date:
December 10, 2020
Filing Date:
May 31, 2019
Export Citation:
Assignee:
MITSUBISHI HEAVY IND LTD
International Classes:
F04D29/046; F04D13/00; F16C17/04
Domestic Patent References:
| JPH0828552A | 1996-02-02 | |||
| JPS6295454U | 1987-06-18 | |||
| JPS5255001A | 1977-05-06 |
Foreign References:
| US20130105156A1 | 2013-05-02 | |||
| US20170037861A1 | 2017-02-09 |
Attorney, Agent or Firm:
Sakai International Patent Office