Modine Manufacturing Company

Stephen B Memory

Gregory G Hughes

Jianmin Yin

Jonathan P Wattelet

C James Rogers

Mark G Voss

Edward Robinson

Lawrence W Gabbey

Craig C Grohman

Richard J Trapp

Richard A Mielke

Winston Zhang

Richard M DeKeuster

Roland Strähle

Jeffrey Alan Logic

Milisav Lazarevic

Alfred L Phillips

Zhijun Zuo

Samuel J Collier

Tao Jia

Anthony C DeVuono

Fredrick E Ganaway

Jian-Min Yin

A brazed plate heat exchanger () is provided for transferring heat between a first fluid () and a second fluid (), with the first fluid () being pressurized to a relatively high pressure. The heat exchanger includes plate pairs (), with each pair () defining a plurality of flow channels () for the first fluid (). Each of the flow channels () has a hydraulic diameter less than 1 mm. Reinforcements () are provided between each of the plate pairs () and are aligned with inlet and outlet openings () to define inlet and outlet manifolds () for the first fluid ().

Brazed plate high pressure heat exchanger

A heat exchanger including a suction line for gaseous or two phase refrigerant output from an evaporator and a capillary tube carrying cooled refrigerant to the evaporator. The suction line includes first and second substantially parallel straight cylindrical portions connected in series, with first and second portions of the capillary tube in series and helically wound around the suction line second and first portions, respectively. A valve for bypassing the capillary tube is responsive to a selected pressure differential between the capillary tube inlet and outlet. A U-shaped portion or accumulator connect the suction line first and second portions. An accumulator alternately is between the evaporator and the suction line portion wound by the capillary tube, with a phase separation chamber connected to an accumulator by a vertical pipe. The accumulator includes a discharge opening to return the oil to the system.

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Heat exchange inefficiencies found in round tube plate fin heat exchangers are eliminated in an aluminum heat exchanger that includes first and second headers (), () and at least one flattened tube (), () extending between the headers (), (). A plurality of generally parallel tube runs are defined and each has opposite edges. A plurality of plate fins (), () are arranged in a stack and each has a plurality of open ended slots (), one for each run of the tubes (), (). Each of the tube runs (), () is nested within corresponding slots () and the fins (), () with one of the edges () of the tube runs extending outwardly of the corresponding fin (). The assembly is brazed together.

Method of fabricating a heat exchanger

Heat exchanger

A heat exchanger () is provided to transfer heat between a first and second fluid flow. The heat exchangerincludes a flow path () provided in the form of one or more heat exchange tubes (A-C), and a second flow path () provided in the form of one or more serpentine heat exchange tubes (A-C). The tube(s) (A-C) is (are) 'woven' together with the tube(s) (A-C) such that they are perpendicular to each other. The heat exchanger () can provide particular advantages when used as a suction line heat exchanger in a transcritical cooling system ().

Serpentine tube, cross flow heat exchanger construction

The efficiency of refrigeration systems operating on the vapor compression cycle and employing suction line heat exchangers is increased by introducing refrigerant into the lower pressure side of the suction line heat exchanger at a quality less than 1 and introducing refrigerant that has passed through the low pressure side of the suction line heat exchanger into the compressor inlet at a quality that is equal to 1.

Refrigeration system

A heat exchanger including inlet and outlet header portions for a refrigerant (such as CO), serpentine multiport tubes each with a plurality of aligned tube runs, and at least three plate assembly fluid paths. Each plate assembly fluid path includes a pair of spaced plates secured together at their edges to define an enclosed space with a fluid inlet and fluid outlet on opposite sides of the space. One plate of one fluid path is positioned against first aligned tube runs, one plate of a second of the fluid paths is positioned against second aligned tube runs, and a third fluid path is positioned between the first and second aligned tube runs. The plates may be substantially identical to one another.

High pressure heat exchanger

A cooling system including an evaporator, a suction line, a two stage compressor, a gas cooler and a capillary tube. The suction line receives gaseous or two phase refrigerant from the evaporator, the compressor receives the gaseous or two phase refrigerant from the suction line, and the gas cooler cools compressed refrigerant discharged from the compressor. The capillary tube carries refrigerant from the gas cooler to the evaporator, and the suction line may include two straight portions with two portions of the capillary tube helically wound therearound, with a bypass valve around the capillary tube, and an accumulator between the suction line portions. An inter-cooler is between stages of the compressor, and a pan collects water condensate from the air side of the evaporator, and the refrigerant tube carries cooled refrigerant from the gas cooler through the pan. A controller selectively turns the compressor on and off based on temperature or pressure sensed by a sensor.

CO2 cooling system

A modular cooling system ( ) is provided for use in an electronics enclosure ( ) mounting a plurality of heat generating electronic components ( ). The cooling system ( ) includes a cooling liquid supply manifold ( ), a cooling liquid return manifold ( ), and a plurality of cooling modules ( ) that are selectively mountable into the electronic enclosure ( ). The cooling system ( ) also includes a wall ( ) fixed in the enclosure to separate the electronic components ( ) from the manifolds ( ) to shield the electronic components ( ) from any of the cooling liquid ( ) should it leak from the system ( ).

Modular cooling system and thermal bus for high power electronics cabinets

A method of providing volume production of highly pressure resistant headers ( ), ( ) is provided and allows the headers ( ), ( ) to be formed of a header structure ( ), ( ) with a relatively thin wall portion ( ) and a relatively thick wall portion ( ). A strip ( ) is utilized to provide the desired thickness at the thin wall portion ( ) while allowing both the thin wall portion ( ) and the strip ( ) to have tube slots ( ), ( ) formed therein by a one step punching operation.

High pressure header and heat exchanger and method of making the same

An integrated unit ( ) in a refrigeration system ( ) wherein a low-pressure conduit ( ) and high-pressure conduit ( ) are in conductive heat exchange relation to each other within an accumulator housing ( ). The low pressure conduit ( ) and high-pressure conduit ( ) may be flat tubes wherein broad sides of the flat tubes are in conductive heat exchange relation to each other. The low-pressure conduit ( ) and high-pressure conduit ( ) or tubes have longitudinal axes ( , respectively) that extend parallel to one another over a length ( ) within the integrated unit ( ).

Integrated suction line heat exchanger and accumulator

A heat exchanger provides simplicity, compactness, and high efficiency through a construction that includes an elongated tube structure comprising three rows of flattened multiport tubing, with a first row of tubing and a third row of tubing sandwiching a second row of tubing . The second row of tubing terminates in opposite ends on which are received refrigerant fittings and respectively. The first and third rows of tubing each include a run abutting and in heat exchange relation with the tubing . Opposing ends of the tubing extend about refrigerant fittings and and are received in refrigerant fittings . The tubing includes parts and extending about the refrigerant fittings and and terminating in opposite ends . The ends are also in fluid communication with fittings

Heat exchanger header construction

Extreme compactness is achieved in a combined evaporator,and suction line heat exchanger,through the use of a first, elongated, flattened, multi-port tube,having a major dimension D,, a minor dimension d,measured transverse to the major dimension D,and opposed ends,. The tube is formed in a serpentine configuration by bends,across the minor dimension d,with a plurality of generally parallel, spaced runs,extending between the ends,to define the evaporator,. An evaporator inlet fixture,is provided on one of the ends,and an evaporator outlet fixture,is provided on the other end,. Fins,extend between adjacent ones of the runs,. A second, elongated, flattened, multiport tube,having a length that is a minor fraction of that of the first tube includes opposed ends,a major dimension D,, and a minor dimension d,measured transverse to the major dimension D,. The second tube, along a side wall substantially defining the major dimension D,is bonded to a corresponding side wall of the first tube,at a location,immediately upstream of the outlet fixture,to be in good heat exchange relation therewith to define a heat exchange suction line heat exchanger integral with the evaporator

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Kenosha, WI, United States of America

Stephen B Memory