公开(公告)号：US20240268082A1

公开(公告)日：2024-08-08

申请号：US18407424

申请日：2024-01-08

Applicant: Inertech IP LLC

Inventor： Earl Keisling ,  John Costakis ,  Gerald McDonnell

IPC: H05K7/20 ,  F21V33/00 ,  F21W131/40

CPC classification number: H05K7/20745 ,  F21V33/0092 ,  F21W2131/40

Abstract: An air flow distribution system for cooling server racks includes at least one server rack partially defining a hot aisle and a cold aisle, a first air foil disposed above the server rack, and a second air foil disposed above the first air foil. The first air foil and the second air foil are configured to receive air from the hot aisle, and to form turbulent wake patterns in the cold aisle partially defined by the server rack. The air flow distribution system may include a convex ceiling member above the second air foil. A corresponding method includes causing air to be directed between a first air foil disposed above a server rack and a second air foil disposed above the first air foil to form turbulent wake patterns in the cold aisle. An electrical enclosure assembly includes a receptacle and a cover member configured as an air foil.

公开(公告)号：US11923725B2

公开(公告)日：2024-03-05

申请号：US18078401

申请日：2022-12-09

Applicant: INERTECH IP LLC

Inventor： Subrata K. Mondal

IPC: H02J9/00 ,  H02J9/06 ,  H02M3/156

CPC classification number: H02J9/062 ,  H02M3/156

Abstract: Systems and methods for supplying power at a medium voltage from an uninterruptible power supply (UPS) to a load without using a transformer are disclosed. The UPS includes an energy storage device, a single stage DC-DC converter or a two-stage DC-DC converter, and a multi-level inverter, each of which are electrically coupled to a common negative bus. The DC-DC converter may include two stages in a unidirectional or bidirectional configuration. One stage of the DC-DC converter uses a flying capacitor topology. The voltages across the capacitors of the flying capacitor topology are balanced and switching losses are minimized by fixed duty cycle operation. The DC-DC converter generates a high DC voltage from a low or high voltage energy storage device such as batteries and/or ultra-capacitors. The multi-level, neutral point, diode-clamped inverter converts the high DC voltage into a medium AC voltage using a space vector pulse width modulation (SVPWM) technique. The UPS may also include a small filter to remove harmonics in the AC voltage output from the multi-level inverter.

公开(公告)号：US11871544B2

公开(公告)日：2024-01-09

申请号：US18086577

申请日：2022-12-21

Applicant: Inertech IP LLC

Inventor： Earl Keisling ,  John Costakis ,  Gerald McDonnell

IPC: H05K7/20 ,  F21V33/00 ,  F21W131/40

CPC classification number: H05K7/20745 ,  F21V33/0092 ,  F21W2131/40

Abstract: An air flow distribution system for cooling server racks includes at least one server rack partially defining a hot aisle and a cold aisle, a first air foil disposed above the server rack, and a second air foil disposed above the first air foil. The first air foil and the second air foil are configured to receive air from the hot aisle, and to form turbulent wake patterns in the cold aisle partially defined by the server rack. The air flow distribution system may include a convex ceiling member above the second air foil. A corresponding method includes causing air to be directed between a first air foil disposed above a server rack and a second air foil disposed above the first air foil to form turbulent wake patterns in the cold aisle. An electrical enclosure assembly includes a receptacle and a cover member configured as an air foil.

公开(公告)号：US11867426B2

公开(公告)日：2024-01-09

申请号：US17887192

申请日：2022-08-12

Applicant: Inertech IP LLC

Inventor： John Costakis ,  Ming Zhang ,  Earl Keisling ,  Ken Nguyen

IPC: F24F5/00 ,  F24F11/83 ,  F25B25/00 ,  F25B23/00 ,  F24F11/84 ,  F24F11/85 ,  F24F110/12 ,  F24F140/50 ,  F24F11/46 ,  F24F13/22 ,  F28C1/00

CPC classification number: F24F5/0007 ,  F24F5/001 ,  F24F5/0003 ,  F24F5/0035 ,  F24F11/83 ,  F24F11/84 ,  F24F11/85 ,  F25B23/006 ,  F25B25/00 ,  F25B25/005 ,  F24F11/46 ,  F24F2013/225 ,  F24F2110/12 ,  F24F2140/50 ,  F25B2339/041 ,  F25B2339/047 ,  F25B2700/197 ,  F25B2700/21163 ,  F28C2001/006 ,  Y02B30/54

Abstract: The cooling systems and methods of the present disclosure involve modular fluid coolers and chillers configured for optimal power and water use based on environmental conditions and client requirements. The fluid coolers include wet media, a first fluid circuit for distributing fluid across wet media, an air to fluid heat exchanger, and an air to refrigerant heat exchanger. The chillers, which are fluidly coupled to the fluid coolers via pipe cages, include a second fluid circuit in fluid communication with the air to fluid heat exchanger and a refrigerant circuit in thermal communication with the second fluid circuit and in fluid communication with the air to refrigerant heat exchanger. Pipe cages are coupled together to allow for expansion of the cooling system when additional cooling capacity is needed. The fluid coolers and chillers are configured to selectively operate in wet or dry free cooling mode, partial free cooling mode, or mechanical cooling mode.

公开(公告)号：US20230363106A1

公开(公告)日：2023-11-09

申请号：US18118357

申请日：2023-03-07

Applicant: INERTECH IP LLC

Inventor： Earl Keisling ,  John Costakis ,  Gerald McDonnell ,  Michael Welch

IPC: H05K7/20 ,  H05K5/02

CPC classification number: H05K7/20218 ,  H05K5/02 ,  H05K7/20736 ,  H05K7/20781 ,  H05K7/20145 ,  H05K7/20609 ,  H05K7/20745 ,  H05K7/2079

Abstract: A cooling assembly for cooling server racks includes a server rack enclosure sub-assembly that includes at least one panel member defining a volume for receiving one or more server racks having a front portion and a rear portion, at least one of the panel members is a rear panel member; at least one frame member defines an opening for receiving the rear portion of the server racks to form a hot space between the rear panel member and the combination of the frame member and the rear portion of the server racks; a cooling sub-assembly disposed in thermal communication with the hot space to cool at least one server supported in the server rack and including a chassis receiving at least one heat exchange member for exchanging heat between a refrigerant fluid flowing through the heat exchange member and fluid flowing through the hot space heated by the server.

公开(公告)号：US11602074B2

公开(公告)日：2023-03-07

申请号：US16653509

申请日：2019-10-15

Applicant: Inertech IP LLC

Inventor： Earl Keisling ,  John Costakis ,  Gerald McDonnell ,  Michael Welch

IPC: H05K7/20 ,  H05K5/02

Abstract: A cooling assembly for cooling server racks includes a server rack enclosure sub-assembly that includes at least one panel member defining a volume for receiving one or more server racks having a front portion and a rear portion, at least one of the panel members is a rear panel member; at least one frame member defines an opening for receiving the rear portion of the server racks to form a hot space between the rear panel member and the combination of the frame member and the rear portion of the server racks; a cooling sub-assembly disposed in thermal communication with the hot space to cool at least one server supported in the server rack and including a chassis receiving at least one heat exchange member for exchanging heat between a refrigerant fluid flowing through the heat exchange member and fluid flowing through the hot space heated by the server.

公开(公告)号：US11424677B2

公开(公告)日：2022-08-23

申请号：US16890856

申请日：2020-06-02

Applicant: Inertech IP LLC

Inventor： Subrata K. Mondal

IPC: H02J7/00 ,  H02M3/155 ,  H02M7/527 ,  H02M1/04 ,  H02M1/08 ,  H02J9/00 ,  H02M7/487 ,  H02M3/158 ,  H02M3/335 ,  H02J9/06 ,  H02M1/00

Abstract: Systems and methods of this disclosure use low voltage energy storage devices to supply power at a medium voltage from an uninterruptible power supply (UPS) to a data center load. The UPS includes a low voltage energy storage device (ultracapacitor/battery), a high frequency (HF) bidirectional DC-DC converter, and a multi-level (ML) inverter. The HF DC-DC converter uses a plurality of HF planar transformers, multiple H-bridge circuits, and gate drivers for driving IGBT devices to generate a medium DC voltage from the ultracapacitor/battery energy storage. The gate drivers are controlled by a zero voltage switching (ZVS) controller, which introduces a phase shift between the voltage on the primary and secondary sides of the transformers. When the primary side leads the secondary side, the ultracapacitor/battery discharges and causes the UPS to supply power to the data center, and when the secondary side leads the primary side, power flows from the grid back to the UPS, thereby recharging the ultracapacitor/battery.

公开(公告)号：US11306959B2

公开(公告)日：2022-04-19

申请号：US14534957

申请日：2014-11-06

Applicant: Inertech IP LLC

Inventor： Gerald McDonnell ,  Ming Zhang ,  John Costakis ,  Earl Keisling

IPC: F25D17/02 ,  F25B25/00 ,  F25B1/00

Abstract: A cooling system is provided including a first evaporator coil in thermal communication with an air intake flow to a heat load, a first liquid refrigerant distribution unit in fluid communication with the first evaporator coil to form a first fluid circuit, a second evaporator coil disposed in series with the first evaporator coil in the air intake flow and in the thermal communication with the air intake flow to the heat load, a second liquid refrigerant distribution unit in fluid communication with the second evaporator coil to form a second fluid circuit, a water loop in thermal communication with the first fluid circuit and second fluid circuit, and a chiller loop in thermal communication with the water loop.

公开(公告)号：US20220014039A1

公开(公告)日：2022-01-13

申请号：US17172054

申请日：2021-02-09

Applicant: Inertech IP LLC

Inventor： Jakob CARNEMARK ,  Piero OLIVERI

IPC: H02J9/06 ,  H02J3/38

Abstract: A power supply system includes an energy storage device electrically connected to a power grid, a power distribution assembly electrically connected to a load, and a power generation device electrically connected to the power distribution assembly. The energy storage device and the power grid are configured to supply electric power having a first voltage range to the power distribution assembly, which in turn, is configured to supply electric power having a second voltage range less than the first voltage range to the load. The energy storage device and the power generation device each are configured to at least temporarily supply a flow of electric power to the power distribution assembly when electric power from the power grid is interrupted such that a substantially uninterrupted flow of electric power is supplied to the load.

公开(公告)号：US20210384730A1

公开(公告)日：2021-12-09

申请号：US17202329

申请日：2021-03-15

Applicant: INERTECH IP LLC

Inventor： Subrata K. Mondal

IPC: H02J3/32 ,  H02J3/18 ,  H02M7/483

Abstract: Systems and methods for supplying power (both active and reactive) at a medium voltage from a DCSTATCOM to an IT load without using a transformer are disclosed. The DCSTATCOM includes an energy storage device, a two-stage DC-DC converter, and a multi-level inverter, each of which are electrically coupled to a common negative bus. The DC-DC converter may include two stages in a bidirectional configuration. One stage of the DC-DC converter uses a flying capacitor topology. The voltages across the capacitors of the flying capacitor topology are balanced and switching losses are minimized by fixed duty cycle operation. The DC-DC converter generates a high DC voltage from a low or high voltage energy storage device such as batteries and/or ultra-capacitors. The multi-level, neutral point, diode-clamped inverter converts the high DC voltage into a medium AC voltage using a space vector pulse width modulation (SVPWM) technique.