Title:
PARALLEL PUMP
Document Type and Number:
WIPO Patent Application WO/2023/139853
Kind Code:
A1
Abstract:
A parallel pump (1) comprises: a casing (2) in which a pump chamber (11) and a gear chamber (12) are partitioned by a partition wall (25); and a first piston pump mechanism and second piston pump mechanism which are disposed parallel to each other in the pump chamber (11). A driving shaft that drives the first piston pump mechanism and a driven shaft that drives the second piston pump mechanism pass through the partition wall (25). In the gear chamber (12), a driving gear is fixed to the driving shaft, and a driven gear (5B) is fixed to the driven shaft. Formed in the partition wall (25) is an oil passage (6) which has an inlet (6a) that is open facing a meshing region of the driving gear and the driven gear and an outlet (6b) that is open facing the pump chamber (11).
Inventors:
KONDO AKIHIRO
KOMADA KOICHI
KOMADA KOICHI
Application Number:
PCT/JP2022/037094
Publication Date:
July 27, 2023
Filing Date:
October 04, 2022
Export Citation:
Assignee:
KAWASAKI HEAVY IND LTD (JP)
International Classes:
F04B1/128; F04B1/145; F04B1/16; F04B23/06; F04B53/18
Foreign References:
| JPS5569165U | 1980-05-13 | |||
| JP2000291532A | 2000-10-17 |
Attorney, Agent or Firm:
ARCO PATENT & TRADEMARK ATTORNEYS (JP)
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