Lennart K Stahl

US Patent:

6557624, May 6, 2003

Filed:

Aug 9, 2000

Appl. No.:

09/635374

Inventors:

Lennart Stahl - Plano TX
Christian L. Belady - McKinney TX

Assignee:

Liebert Corporation - Columbus OH

International Classification:

F24H 906

US Classification:

165 53, 165121, 454186

Abstract:

A method and system are disclosed for cooling a room having one or more heat generating objects. A number of heat exchangers are disposed adjacent a floor or ceiling and extends substantially entirely or partially between the walls of the room. A fan unit is disposed adjacent the heat exchanger and draws or blows cooled air from the heat exchanger and directs the drawn air into the room. The fan unit is capable of being repositioned along a different portion of the heat exchanger so as to redefine the flow of cooled air into the room. The cooling system components are modularized enabling configuration of a number of components to cool a room.

US Patent:

6644384, Nov 11, 2003

Filed:

Sep 23, 2002

Appl. No.:

10/252747

Inventors:

Lennart Stahl - Plano TX

Assignee:

Liebert Corporation - Columbus OH

International Classification:

F24H 302

US Classification:

165 54, 165 56, 165122, 361724, 454184

Abstract:

A method and system for high density modular cooling system is disclosed. Cooling coils and fans are interleaved so as to cover all usable space with the enclosed area behind the interleaved cooling coils and fans acting as a plenum. A cooling fluid is circulated through the cooling coils by the interleaved fans.

US Patent:

6705389, Mar 16, 2004

Filed:

Jul 17, 2000

Appl. No.:

09/617391

Inventors:

Lennart Stahl - Plano TX
Christian Belady - McKinney TX

Assignee:

Emerson Electric Co. - St. Louis MO

International Classification:

F28F 2700

US Classification:

165 96, 165121, 16510434, 454184, 361696

Abstract:

A method and system are disclosed for cooling a heat generating object. A coolant is passed through a heat exchanger so that heated air passing through a first portion of the heat exchanger is cooled. A fan unit is selectively positioned relative to the heat exchanger. When activated, the fan unit draws the cooled air through a second portion of the heat exchanger and directs the twice cooled air towards the heat generating object. The fan unit may be repositioned along a different portion of the heat exchanger so as to redefine the flow of air drawn from and directed towards the heat generating object.

US Patent:

6854659, Feb 15, 2005

Filed:

Sep 23, 2002

Appl. No.:

10/252745

Inventors:

Lennart Stahl - Plano TX, US
Christian Belady - McKinney TX, US

Assignee:

KLiebert Corporation - Columbus OH

International Classification:

F24F007/00

US Classification:

236 493, 62229, 622592, 361696

Abstract:

A system for cooling heat generating objects arranged in a room. The system adapts in real time to changing cooling demands of the objects. Remote sensors mounted in proximity to the heat generating objects relay information to cooling units, which adjust their operation in response to the information.

US Patent:

6564858, May 20, 2003

Filed:

Jul 17, 2000

Appl. No.:

09/617213

Inventors:

Lennart Stahl - Plano TX
Christian Belady - McKinney TX

Assignee:

Liebert Corporation - Columbus OH

International Classification:

F28F 2702

US Classification:

165 97, 165122, 454184

Abstract:

A method and system are disclosed for cooling a heat generating object. A coolant is passed through a heat exchanger so that heated air passing through the heat exchanger is cooled. A fan unit is selectively positioned adjacent to a first side of the heat exchanger. When activated, the fan unit draws the cooled air through the heat exchanger and directs the cooled air towards the heat generating object. The fan unit may be repositioned along a second side of the heat exchanger so as to redefine the flow of air drawn from and directed towards the heat generating object.