Cooler for cooling an exhaust gas discharged from an engine undergoing test

Patent metadata

Field	Value
Publication number	US-11125650-B2
Application number	US-201916453314-A
Country	US
Kind code	B2
Filing date	Jun 26, 2019
Priority date	Jun 27, 2018
Publication date	Sep 21, 2021
Grant date	Sep 21, 2021

Abstract

Provided is a cooler and an engine testing apparatus having the same. The cooler includes a guide unit configured to make a gas flow, a liquid supply unit arranged in the guide unit to supply a liquid into the guide unit, a liquid column guide unit connected to the guide unit and having a column of the liquid, and a liquid storage unit connected to the liquid column guide unit and storing the liquid.

First claim

The invention claimed is:

1. A cooler for cooling an exhaust gas discharged from an engine undergoing test, comprising:
a guide unit configured to guide a gas flow discharged from an engine undergoing test;
a liquid supply unit arranged in the guide unit to supply a liquid inside of the guide unit;
a liquid column guide unit connected to the guide unit and structured to form a column that stores the liquid collected within the guide unit, the liquid column guide unit providing a path along which the liquid collected within the guide unit or the liquid dropped on a lower surface of the guide unit moves; and
a liquid storage unit connected to the liquid column guide unit and storing the liquid inside the liquid column guide unit or supplying the liquid to the liquid column guide unit;
wherein a height of the liquid stored in the column of the liquid column guide unit corresponds to a difference between a pressure at the surface of the liquid storage unit and an internal pressure of the guide unit.

2. The cooler of claim 1 , wherein the liquid supply unit further comprises one or more liquid supply units, and said one or more liquid supply units are spaced apart from each other in a flow direction of the gas.

3. The cooler of claim 1 , wherein a cross-sectional area of the guide unit, viewed perpendicular to a flow direction of the gas, varies from upstream to downstream of the flow direction of the gas.

4. The cooler of claim 1 , further comprising a screen arranged in the guide unit-close to an exit of the guide unit and toward a downstream location of the flow direction of the gas such that the screen collects the liquid within the guide unit.

5. The cooler of claim 1 , wherein the internal pressure of the guide unit is lower than an atmospheric pressure.

6. The cooler of claim 1 , further comprising a liquid circulation unit arranged on a channel that connects the liquid storage unit to the liquid supply unit and configured to supply a liquid stored in the liquid storage unit to the liquid spray unit.

Assignees

• Korea Aerospace Res Inst

Inventors

• Kim Chun Taek

Classifications

• G01M15/14 Primary

  Testing gas-turbine engines or jet-propulsion engines · CPC title

• G01M15/02

  Details or accessories of testing apparatus · CPC title

• F01P9/02 Primary

  Cooling by evaporation, e.g. by spraying water on to cylinders (evaporation and condensation of liquid coolant in closed cycles F01P3/22 {; evaporation or evaporation apparatus for physical or chemical purposes, e.g. evaporation of liquids for gas phase reactions B01B1/005}) · CPC title

• F25B19/04

  using liquid jet, e.g. of water · CPC title

• F01P7/14

  the coolant being liquid · CPC title