Heat exchange apparatus

Patent metadata

Field	Value
Publication number	US-11035629-B2
Application number	US-201816207366-A
Country	US
Kind code	B2
Filing date	Dec 3, 2018
Priority date	Jun 6, 2017
Publication date	Jun 15, 2021
Grant date	Jun 15, 2021

Abstract

A heat exchange apparatus includes a heat exchanger through which a heat exchange medium flows inside, a fluid transport device that causes the heat exchange medium to flow, and a flow path through which the heat exchange medium flows. The heat exchange apparatus includes a flow rate controller configured to increase or decrease the flow rate of the heat exchange medium flowing through the flow path, and a driving part that drives the flow rate controller by receiving a force from the flow of the heat exchange medium flowing through the flow path.

First claim

What is claimed is:

1. A heat exchange apparatus comprising:
a heat exchanger through which a heat exchange medium flows;
a pump that causes the heat exchange medium to flow through the heat exchanger;
a flow path through which the heat exchange medium flows, the flow path connecting the heat exchanger and the pump with each other;
a flow rate controller provided in the flow path to raise or lower a flow velocity of the heat exchange medium flowing through the flow path; and
a turbine having a cylindrical rotation driving body housing a driving part provided in the flow path to drive the flow rate controller by a flow of the heat exchange medium flowing through the flow path, wherein
the heat exchanger includes a plurality of tubes and a header tank that extends in a stacking direction in which the plurality of tubes are stacked and that is disposed in an end of the plurality of tubes in a longitudinal direction of the plurality of tubes,
the flow rate controller and the turbine are disposed in the header tank,
the flow rate controller has a rotational axis perpendicular to the longitudinal direction of the plurality of tubes,
the flow rate controller includes an open/close valve,
the open/close valve has a valve opening allowing the heat exchange medium to flow, and accelerates or decelerates the flow of the heat exchange medium by increasing or decreasing an open area of the valve opening,
the turbine receives a force from the flow of the heat exchange medium flowing through the flow path to rotate, and drives the open/close valve to rotate, and
the turbine and the open/close valve are coaxial with each other.

2. The heat exchange apparatus according to claim 1 , wherein the flow rate controller is located at a position closer to the heat exchanger than the pump.

3. The heat exchange apparatus according to claim 1 , wherein
the turbine and the open/close valve are connected with each other by engagement between a driving side key shaped portion of the turbine and an open/close valve side key shaped portion of the open/close valve, and
the turbine converts a fluid energy, which is a force of the heat exchange medium flowing through the open/close valve, into torque to drive the open/close valve to rotate integrally with the turbine.

4. The heat exchange apparatus according to claim 1 , wherein the turbine is provided integrally with the open/close valve.

5. The heat exchange apparatus according to claim 1 , wherein a rotation axis of the turbine and a rotation axis of the open/close valve are coaxial with each other.

6. The heat exchange apparatus according to claim 3 , wherein
the heat exchanger includes a first heat exchanger and a second heat exchanger connected in parallel to each other,
the flow path has
a first flow path connected to the first heat exchanger, and
a second flow path connected to the second heat exchanger, and

the open/close valve switches the heat exchange medium to flow through the first flow path or the second flow path.

7. The heat exchange apparatus according to claim 6 , wherein the open/close valve causes the heat exchange medium to have a phase shifted by a half of a period between a flow passing through the first heat exchanger and a flow passing through the second heat exchanger.

8. The heat exchange apparatus according to claim 6 , wherein the open/close valve does not simultaneously close the first flow path and the second flow path.

9. The heat exchange apparatus according to claim 1 , wherein the turbine has a water wheel structure that rotates by receiving a force from a flow of the heat exchange medium.

10. The heat exchange apparatus according to claim 1 , wherein the heat exchanger is a cooler configured to cool an electronic component.

11. The heat exchange apparatus according to claim 1 , wherein
an engine cooler is arranged in the flow path to cool an engine, and
a flow rate of the heat exchange medium flowing through the engine cooler is made constant, and a flow rate of the heat exchange medium flowing through the heat exchanger is periodically increased or decreased.

12. The heat exchange apparatus according to claim 3 , further comprising:
a rotation shaft portion coaxial with a tube portion of the turbine and a tube portion of the open/close valve, wherein
a contact area between the tube portion of the open/close valve and the rotation shaft portion is larger than a contact area between the tube portion of the turbine and the rotation shaft portion.

13. The heat exchange apparatus according to claim 1 , wherein the flow rate controller generates a pulsating flow.

14. The heat exchange apparatus according to claim 1 , wherein
a rotation shaft portion is perpendicular to both the stacking direction and the longitudinal direction of the plurality of tubes.

15. The heat exchange apparatus according to claim 14 , wherein
the pump is located outside of the header tank, and
the turbine and the open/close valve are located at a center of the header tank in the stacking direction.

Assignees

• Denso Corp

Inventors

• Goto Yousuke
• Kohara Kimio
• Sakimichi Satoshi
• Kawaguchi Shogo

Classifications

• F28F9/02

  Header boxes; End plates · CPC title

• F28F2250/06

  Derivation channels, e.g. bypass · CPC title

• F28F2250/08

  Fluid driving means, e.g. pumps, fans · CPC title

• F28F27/02 Primary

  for controlling the distribution of heat-exchange media between different channels ({static flow control means in header boxes F28F9/026}; arrangements of guide plates or guide vanes F28F9/22, F28F25/12) · CPC title

• F28F13/10

  by imparting a pulsating motion to the flow, e.g. by sonic vibration · CPC title