Heat transfer unit

Patent metadata

Field	Value
Publication number	US-9383144-B2
Application number	US-201013322302-A
Country	US
Kind code	B2
Filing date	May 3, 2010
Priority date	May 27, 2009
Publication date	Jul 5, 2016
Grant date	Jul 5, 2016

Abstract

A heat exchanger unit that includes a plurality of first heat exchanger ducts formed by a plurality of plates configured for a first flow of a coolant, a plurality of second heat exchanger ducts formed by the plurality of plates configured for a second flow to be cooled by the first flow, a first inlet for the first flow, a first outlet for the first flow, a first inlet for the second flow, and a second outlet for the second flow. The heat exchanger unit further includes an inlet chamber for the first flow from which a partial flow of the first flow is branched off, conducted through the plurality of first heat exchanger ducts and circulated within the heat exchanger unit to the first outlet.

First claim

What is claimed is:

1. A heat exchanger unit for exchanging heat between a first flow and a second flow, comprising:
an engine chamber having a first flow outlet; and
an adapter plate extending around and enclosing an opening of the engine chamber, wherein the adapter plate has a first flow inlet fully receiving the first flow and a first flow inlet chamber;
an orifice plate having a first orifice opening and a second orifice opening;
a plate stack attached to the orifice plate such that the plate stack is disposed within the engine chamber, including;
a plurality of plates, wherein adjacent plates are joined along their peripheries to form a plurality of first heat exchanger ducts and a plurality of second heat exchanger ducts,
the plurality of first heat exchanger ducts formed by the plurality of plates connected by a first collecting duct and a first distributor duct formed in the plates, and wherein the first distributor duct is aligned with the second orifice opening and the first collecting duct includes a first collecting duct opening from which the partial first flow exits the plate stack, and
the plurality of second heat exchanger ducts formed by the plurality of plates, and connected by a second collecting duct and a second distributor duct formed in the plates; and
whereby the first flow inlet chamber fully receives the first flow from the first flow inlet and branches the first flow partially to the first orifice opening into the engine chamber and partially to the second orifice opening into the plate stack such that part of the first flow contacts an outer surface of the plate stack in the engine chamber while another part of the first flow passes through the plurality of first heat exchanger ducts within the plate stack
wherein the first flow merges upstream of the first flow outlet and the first flow outlet fully receives the first flow.

2. The heat exchanger of claim 1 , wherein first flow inlet and the first flow inlet chamber conduct at least a portion of the first flow in the same direction.

3. The heat exchanger of claim 1 , wherein the first flow inlet directs the first flow in the direction of the plate stack.

4. The heat exchanger of claim 1 , wherein the first collecting duct opens to the space outside of the plate stack and is connected fluidically with the periphery of the plate stack.

5. The heat exchanger of claim 1 , wherein the first collecting duct opening is fluidically connected with the first flow inlet chamber.

6. The heat exchanger of claim 1 , wherein the first flow inlet chamber extends from the first flow inlet to the first distributor duct, and wherein the portion of the first flow inlet chamber adjacent to the first flow inlet is larger than the portion of the first flow inlet chamber adjacent to the first distributor duct.

7. The heat exchanger of claim 1 , wherein the first flow inlet chamber is in line with the first distributor duct and is in line with the first flow inlet.

8. A plate-type heat exchanger extending into an engine chamber and enclosing the chamber to exchange heat between a first coolant flow and a second flow to be cooled comprising:
an adapter plate extending around and enclosing an opening of the engine chamber, wherein the adapter plate has a first flow inlet and a first flow inlet chamber and the engine chamber has a first flow outlet;
an orifice plate having a first orifice opening and a second orifice opening; and
a plate stack attached to the orifice plate such that the plate stack is disposed within the engine chamber, the plate stack further including,
a plurality of plates, wherein adjacent plates are joined along their peripheries to form a plurality of first heat exchanger ducts and a plurality of second heat exchanger ducts,
wherein the first flow inlet chamber receives the entire first coolant flow from the first flow inlet and directs a first part of the first coolant flow to the first orifice opening into the engine chamber and a second part of the first coolant flow to the second orifice opening into the plurality of first heat exchanger ducts in the plate stack, and
whereby the first part of coolant flow contacts an outer surface of the plate stack in the engine chamber while the second part of the first coolant flow passes through the plurality of first heat exchanger ducts within the plate stack
wherein the first coolant flow merges upstream of the first flow outlet and the first flow outlet fully receives the first flow.

9. A heat exchanger system for exchanging heat between a coolant flow and a second fluid to be cooled comprising:
an engine chamber including a coolant flow outlet; and
an adapter plate extending around and enclosing an opening of the engine chamber, wherein the adapter plate has a coolant flow inlet and a coolant flow inlet chamber;
an orifice plate having a first orifice opening and a second orifice opening;
a plate stack attached to the orifice plate such that the plate stack is disposed within the engine chamber including,
a plurality of plates, wherein adjacent plates are joined along their peripheries to form a plurality of first heat exchanger ducts and a plurality of second heat exchanger ducts,
wherein the coolant flow inlet chamber receives the entire coolant flow from the coolant flow inlet and branches the coolant flow partially to the first orifice opening into the engine chamber and partially to the second orifice opening into the plate stack such that part of coolant flow contacts an outer surface of the plate stack in the engine chamber while another part of the coolant flow passes through the plurality of first heat exchanger ducts within the plate stack, and
wherein the partial coolant flows merge upstream of the coolant flow outlet and the coolant flow outlet receives the entire coolant flow.

10. The heat exchanger of claim 1 , wherein the periphery of the plate stack is defined by edges of the plurality of plates, and wherein the edges of adjacent plates connect.

11. The heat exchanger of claim 1 , wherein the first orifice opening includes an edge reinforcement covering the edges of the first orifice opening, wherein the first flow inlet chamber extends between the first flow inlet and the first orifice opening.

12. The heat exchanger of claim 11 , wherein the edge reinforcement is one of a plastic coating, a rubber collar, a plastic collar, or a metal collar.

13. The heat exchanger unit of claim 8 , wherein the plurality of plates are stacked together and have trough-shaped plates having edges, and wherein the edges of the trough-shaped plates point into the engine chamber.

14. The heat exchanger of claim 8 , wherein the first orifice opening includes an edge reinforcement covering the edges of the first orifice opening.

15. The heat exchanger of claim 14 , wherein the edge reinforcement is one of a plastic coating, a rubber collar, a plastic collar, or a high-grade steel collar.

16. The heat exchanger of claim 8 , wherein the first orifice opening is in-line with the first flow inlet.

17. The heat exchanger of claim 8 , wherein the first orifice opening is disposed between the first flow inlet chamber and the engine chamber.

18. The heat exchanger of claim 9 , wherein the plurality of first heat exchanger ducts are fluidly connected by a first collecting duct having an exit and wherein the exit of the first collecting duct is fluidly connected to both the coolant flow inlet chamber and the coolant flow outlet on the outside of the plate stack fluidly separated from the first heat exchanger ducts by the exit of the fir

Assignees

• Stoll Reinhard
• Ghidini Alfredo
• Müller-Lufft Stefan
• Laux Stefan
• Modine Mfg Co

Inventors

• Stoll Reinhard
• Ghidini Alfredo
• Müller-Lufft Stefan
• Laux Stefan

Classifications

• F28F2250/06

  Derivation channels, e.g. bypass · CPC title

• F28D9/005 Primary

  the plates having openings therein for both heat-exchange media · CPC title

• F28D2021/0089

  Oil coolers · CPC title

• F01M5/002

  Cooling · CPC title

• F28F9/0246

  Arrangements for connecting header boxes with flow lines · CPC title