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Bidirectional pump

a pump and bi-directional technology, applied in the direction of engine diaphragms, diaphragm valves, liquid fuel engines, etc., can solve the problems of high installation cost, difficult replacement and repair, and high installation cost of electronic valves

Inactive Publication Date: 2020-07-30
LG ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The patent describes a new type of pump that can change the direction of water flow while minimizing resistance. It also includes a housing that prevents water from leaking out. This pump has technical benefits in improving the efficiency and controllability of water supply systems.

Problems solved by technology

This bidirectional pump is problematic in that its structure is complex, its installation cost is expensive, and replacement and repair are difficult.
However, this bidirectional pump is problematic in that the installation cost of the electronic valve is also expensive, and it is impossible to completely exclude malfunction due to electronic defects.
Furthermore, this bidirectional pump is problematic in that closing any one of paths (or holes) through which water is supplied via a linear member so as to change a water supply direction makes it difficult to ensure reliability.
Moreover, there has not been proposed a structure that can minimize the flow resistance of water even when a water supply direction is changed.
Meanwhile, as a housing defining an exterior of the bidirectional pump is not integrally formed but is manufactured as an assembly, water may unexpectedly flow out due to high pressure generated in the bidirectional pump.

Method used

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Examples

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Embodiment Construction

[0026]The above and other objects, features and other advantages of the present disclosure will be more clearly understood from the following detailed description when taken in conjunction with the accompanying drawings. However, the disclosure should not be limited to embodiments set forth herein but may be implemented in a variety of forms. The embodiments described herein are provided to make the disclosure complete and to fully convey the spirit of the invention to those skilled in the art. The disclosure is defined merely by the scope of claims. The same reference numerals are used throughout the drawings to designate the same components.

[0027]It will be understood that when a component is referred to as being “coupled to” or “connected to” another component, it may be directly coupled or connected to the other element or intervening components may be present therebetween.

[0028]The present disclosure may be described with reference to a spatial orthogonal coordinate system by X...

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Abstract

Provided is a bidirectional pump, including a housing comprising a fluid inlet, and first and second fluid outlets that communicate with the fluid inlet and face each other; an impeller disposed in the housing, and rotating in a forward direction or in a reverse direction; a motor configured to impart a rotating force to the impeller; and a diaphragm disposed between the first and second fluid outlets in the housing, and deformed according to pressure exerted by rotation of the impeller, wherein the diaphragm closes either of the first and second fluid outlets according to a rotating direction of the impeller.

Description

CROSS-REFERENCE TO RELATED APPLICATION[0001]This application claims the priority benefit of Korean Patent Application No. 10-2019-0009714, filed on Jan. 25, 2019 in the Korean Intellectual Property Office, the disclosure of which is incorporated herein by reference.BACKGROUND OF THE INVENTIONField of the Invention[0002]The present disclosure relates to bidirectional pump and, more particularly, to a bidirectional pump that can adjust the discharge direction of fluid according to the rotating direction of a single motor.Related Art[0003]Generally, a bidirectional pump is a device that is used in a washing machine or a dishwasher and is used to change a water supply direction according to the circulation mode and the drainage mode of the washing machine or the dishwasher.[0004]A conventional bidirectional pump has a motor and an impeller on each of two water supply paths to adjust a water supply direction. This bidirectional pump is problematic in that its structure is complex, its in...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): F04D15/00
CPCF04D15/0016F04D29/4293F05D2250/52F04D13/06F04D29/486F16K7/17F04D1/00F04D15/0022F05D2210/11
Inventor JUNG, DOHYUNLEE, TAEHEE
Owner LG ELECTRONICS INC