Plug Bypass Valves And Heat Exchangers

• US 20120132413A1
• Filed: 09/09/2011
• Published: 05/31/2012
• Est. Priority Date: 07/30/2001
• Status: Active Grant

• Current Assignee: Dana Canada Corporation
• Original Assignee: Dana Canada Corporation
• Inventors: Cheadle, Brian E., Peric, Yuri
• Granted Patent: US 8,960,269 B2
• Time in Patent Office: Days
• US Class Current: 165/297
• CPC Class Codes: F01M 5/00 Heating, cooling, or controlling temperature of lubricant arrangement of lubricant coolers in engine cooling system F01P11/08; Lubrication means facilitating engine starting
• CPC Class Codes: F01M 5/007 Thermostatic control
• CPC Class Codes: F28D 1/0333 the plates having integrated connecting members
• CPC Class Codes: F28D 1/05358 Assemblies of conduits connected side by side or with individual headers, e.g. section type radiators
• CPC Class Codes: F28D 2021/0089 Oil coolers heating or cooling lubricants in vehicles F01M5/00
• CPC Class Codes: F28F 2250/06 Derivation channels, e.g. bypass
• CPC Class Codes: F28F 27/02 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

Abstract

A heat exchanger includes: a bypass valve; a stack of standard tubes; and, in the stack, a pair of stacked-together adapter tubes. Each standard tube end has spaced-apart walls including openings. Each adapter tube end has: a wall including an opening; and a passage. At one end of the pair, the passages communicate with one another and the openings communicate with the openings in adjacent standard tubes; at the other end, the openings communicate with the openings in adjacent standard tubes. The valve includes a plug with opposed plug walls, one plug wall having one of an inlet and outlet, the plug being disposed with its walls between and at said other end of the pair and with the inlet and outlet communicating with the passages. An actuator is adjacent to the plug and has a reciprocating plunger for selectively blocking at least said one of the inlet and outlet.

Claims

1. A heat exchanger comprising:

a plurality of tubular members disposed in a stack, the tubular members including a plurality of standard tubes and a pair of adapter tubes, the adapter tubes of said pair being disposed in stacked relation to one another and in stacked relation between a respective pair of the standard tubes,

each of the standard tubes having, at each end, spaced-apart wall portions including flow openings for the flow of fluid between the tubular members and

each adapter tube having, at each end;

(i) a wall portion including a flow opening; and

(ii) a flow passage,

the adapter tubes forming said pair

at one end

 

being operatively connected to one another such that the flow passages thereof communicate with one another; and

 

being operatively connected to the respective pair of standard tubes between which said pair of adapter tubes is disposed such that the flow openings in said one end of the pair of adapter tubes communicate with the flow openings in the standard tubes between which said pair of adapter tubes is disposed; and

at the other end thereof,

 

being operatively connected to the pair of standard tubes between which said pair of adapter tubes is disposed such that the flow openings in said other end of the pair of adapter tubes communicate with the flow openings in the standard tubes between which said pair of adapter tubes is disposed; and

a bypass valve for said pair of adapter tubes, the bypass valve including

a housing having;

(i) a hollow plug portion with opposed plug walls, one of the plug walls having defined therein one of an inlet and an outlet opening, said plug portion further having defined therein the other of the inlet and outlet opening and being disposed with the plug walls operatively sealingly mounted between and at said other end of the pair of adapter tubes for which said valve and is provided and with the inlet and outlet openings communicating with the flow passages; and

(ii) an actuator portion located adjacent to the plug portion; and

an actuator mounted in the actuator portion and having a plunger extending into the plug portion, the plunger reciprocating in use to selectively;

(i) unblock said at least said one of the inlet and outlet opening, to provide for the flow of fluid between the adapter tubes via the plug portion; and

(i) block at least said one of the inlet and outlet opening, to arrest flow via the plug portion between the adapter tubes.

2. A heat exchanger as claimed in claim 1 wherein each standard tube is formed of a pair of standard plates arranged in stacked relation to one another.

3. A heat exchanger according to claim 2, wherein each adapter tube is defined by an adapter plate and a plug-receiving plate arranged in stacked relation to one another.

4. A heat exchanger according to claim 3, wherein:

each standard tube has enlarged distal end portions defined by raised bosses in the standard plates;

each end of each adapter plate has an oversized raised boss;

the plug-receiving plate is a substantially flat plate;

each standard plate has a channel extending between the raised bosses; and

each adapter plate has an oversized channel extending between the oversized raised bosses.

5. A heat exchanger comprising:

a plurality of tubular members disposed in a stack, the tubular members having flow openings for the flow of fluid between the tubular members;

a bypass valve including a housing having

a hollow plug portion with opposed plug walls, one of the plug walls having defined therein one of an inlet and an outlet opening, said plug portion further having defined therein the other of the inlet and outlet opening;

said plug portion being disposed in the stack with the plug walls being operatively sealingly mounted between a respective pair of the tubular members to allow fluid flow between said inlet and outlet opening and the flow openings in said pair of tubular members;

apart wall portions; and

an actuator portion located adjacent to the plug portion;

an actuator mounted in the actuator portion and having a plunger extending into the plug portion, the plunger reciprocating to block and unblock said one of the inlet and outlet opening; and

a pair of stepped mounting plates which are captured between the pair of tubular members and between which is captured the hollow plug portion.