Fluid circulating apparatus

Patent metadata

Field	Value
Publication number	US-2024426295-A1
Application number	US-202418749956-A
Country	US
Kind code	A1
Filing date	Jun 21, 2024
Priority date	Jun 22, 2023
Publication date	Dec 26, 2024
Grant date	—

Abstract

Disclosed is a fluid circulating apparatus in which a reservoir, a valve part, and a pump part are integrated with one another, and the valve part and the pump part are disposed in the reservoir to thus achieve a compact structure, thereby achieving a reduced overall size and stabilizing a fluid circulation when pumping a fluid through a plurality of flow paths.

First claim

What is claimed is:

1 . A fluid circulating apparatus comprising:
a reservoir housing having an internal space for storing a fluid and including a plurality of ports; a valve part communicating with the internal space of the reservoir housing and some ports, and allowing the fluid in the internal space to be circulated selectively to some or all of the ports; and a pump part disposed in the reservoir housing to be connected to the valve part, and pumping the fluid passed through the valve part.

2 . The apparatus of claim 1 , wherein the ports of the reservoir housing include a first port, a second port, and a third port,
the first port is disposed on an upper side of the reservoir housing, the second port is disposed on a lower side of the reservoir housing, and the third port is open upward from the top of the reservoir housing.

3 . The apparatus of claim 2 , wherein the valve part includes a valve housing, a valve, and an actuator,
the valve housing includes a first passage opened to the internal space, a second passage opened to the second port, and a third passage opened to the third port, and a rotation position of the valve is determined based on whether the actuator is operated, and each passage is thus opened and closed selectively.

4 . The apparatus of claim 3 , wherein the valve housing is disposed on a bottom surface of the reservoir housing, and has a portion passing through the bottom surface of the reservoir housing and exposed to the outside, thus allowing the valve to be disposed in the internal space, and the actuator to be disposed outside the reservoir housing.

5 . The apparatus of claim 3 , wherein the valve includes a plurality of first through holes disposed in an outer surface and matching the first passage or the second passage based on the rotation position of the valve, and a second through hole disposed in an upper surface and constantly communicating with the third passage.

6 . The apparatus of claim 5 , wherein each first through hole of the valve extends by a certain length along an outer peripheral surface of the valve.

7 . The apparatus of claim 3 , wherein the pump part is disposed above the valve housing, and communicates with the third port of the reservoir housing and the third passage of the valve housing.

8 . The apparatus of claim 3 , wherein the pump part includes a pump housing, a screw part, and a motor,
the pump housing is installed in the reservoir housing, and communicates with the third port of the reservoir housing and the third passage of the valve housing, the screw part and the motor are disposed in the pump housing, and the screw part pumps the fluid by rotating the motor.

9 . The apparatus of claim 8 , wherein the screw part includes a screw housing, and a main screw, an auxiliary screw and a thrust key, disposed in the screw housing,
the main screw is rotated by being connected to the motor, the auxiliary screw is rotated by being engaged with the main screw, and the main screw and the auxiliary screw are rotatably connected to each other by a medium of the thrust key.

10 . The apparatus of claim 2 , wherein an additional pump part is further disposed in the reservoir housing, and connected to the second port.

11 . A fluid circulating apparatus comprising:
a reservoir housing having an internal space for storing a fluid and including an inlet port and a plurality of outlet ports; a valve part disposed in the reservoir housing to communicate with the internal space of the reservoir housing and the plurality of outlet ports, and allowing a fluid in the internal space to be circulated selectively to any one or all of the outlet ports; and a plurality of pump parts connected to each of the outlet ports of the reservoir housing by a medium of the valve part and pumping the fluid passed through the valve part.

12 . The apparatus of claim 11 , wherein one of the plurality of pump parts is disposed in the reservoir housing and above the valve part to be connected to the outlet port, and
the other pump part is disposed outside the reservoir housing to be connected to the outlet port.

13 . The apparatus of claim 12 , wherein a mounting part, on which the external pump part is mounted, is disposed outside the reservoir housing, thus allowing the pump part disposed outside the reservoir housing to be connected to the outlet port while mounted on the mounting part.

Assignees

• Coavis

Inventors

• Lee Hyun Tae
• Lee Woo Keun

Classifications

• F04C15/064

  with inlet and outlet valves specially adapted for rotary or oscillating piston machines or pumps · CPC title

• F04C11/008

  Enclosed motor pump units · CPC title

• F04C2/165 Primary

  having more than two rotary pistons with parallel axes · CPC title

• F04C11/001

  of similar working principle · CPC title

• F04C2240/40

  Electric motor · CPC title