Screw pump and integrated cooling module including the same

Patent metadata

Field	Value
Publication number	US-12078170-B2
Application number	US-202318366283-A
Country	US
Kind code	B2
Filing date	Aug 7, 2023
Priority date	Aug 9, 2022
Publication date	Sep 3, 2024
Grant date	Sep 3, 2024

Abstract

The present disclosure relates to a cooling module in which a plurality of cooling water outlets through which cooling water is discharged are formed in an outer housing, an inner housing into which a first screw and a second screw are inserted inside the outer housing, and a communication hole formed in the inner housing communicates with a plurality of cooling water outlets, in which a cooling module or a cooling water system including a plurality cooling water outlets formed in one screw pump is simple, reduces the number of parts, and simplifies a package.

First claim

What is claimed is:

1. A screw pump, comprising:
an outer housing that is formed in a form of a container with one side open, and has a cooling water inlet communicating with an internal space on the other side and a plurality of cooling water outlets communicating with the internal space and discharging cooling water on one side surface;
an inner housing that is formed in a form of a container with the other side open, has a communication hole communicating an inside of the inner housing and an outside of the inner housing on one side, and is inserted into the outer housing so that the communication hole communicates with the plurality of cooling water outlets;
a thrust key that is inserted into and coupled to the other inner end of the outer housing; and
a first screw and a second screw that are inserted into the inner housing, have lower ends supported by the thrust key, and are rotatably engaged with each other,
wherein the outer housing is formed with an expansion part in a form in which the internal space is expanded at one end of a side wall, and
the inner housing is formed such that a ring part inserted corresponding to the expansion part of the outer housing is spaced apart from one end of a body inserted into the side wall of the outer housing, and one end of the body and the ring part are connected by a plurality of ribs.

2. The screw pump of claim 1 , wherein the communication hole of the inner housing is formed in plural, and the plurality of communication holes are spaced apart from each other along a circumference of one side of the inner housing and formed toward one side and a side surface.

3. The screw pump of claim 1 , wherein the plurality of ribs are formed to protrude from the other surface of the ring part, and the plurality of ribs are spaced apart from each other in a circumferential direction.

4. The screw pump of claim 3 , wherein the plurality of cooling water outlets are connected to at least one of a side surface and a bottom of the expansion part.

5. The screw pump of claim 1 , wherein a plurality of supports are formed to extend from the inside of the ring part toward a center of the ring part in the radial direction, and a drive shaft support part rotatably supported by inserting a drive shaft connected to the first screw into the center in the radial direction where the plurality of supports meet is formed.

6. The screw pump of claim 5 , wherein the drive shaft further includes a driving part that penetrates through the drive shaft support part to be coupled to the first screw and is coupled to the outer housing to block an open side.

7. The screw pump of claim 1 , wherein the second screw is provided in plural.

8. A cooling module, comprising:
a reservoir tank in which cooling water is stored;
the screw pump of claim 1 coupled to the reservoir tank and having a cooling water inlet communicating with the reservoir tank to pump cooling water; and
a direction changeover valve that is coupled to the reservoir tank to change a flow direction of the cooling water according to operation.

Assignees

• Coavis

Inventors

• Lee Hyuntae
• Lee Wookeun
• Mo Dongheon

Classifications

• F04C15/06

  Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet · CPC title

• F04C2240/30

  Casings or housings · CPC title

• F04C2/16 Primary

  with helical teeth, e.g. chevron-shaped, screw type {(for non-parallel axes of movement F04C3/00)} · CPC title

• F04C29/04

  Heating; Cooling (of machines or engines in general F01P); Heat insulation (heat insulation in general F16L59/00) · CPC title

• F04C15/0061

  Means for transmitting movement from the prime mover to driven parts of the pump, e.g. clutches, couplings, transmissions · CPC title