公开(公告)号：US11778789B2

公开(公告)日：2023-10-03

申请号：US17340328

申请日：2021-06-07

Applicant: International Business Machines Corporation

Inventor： Christopher M. Marroquin ,  Ray Clement Laning ,  Brandon R. Christenson ,  Milnes P. David ,  Phillip V. Mann ,  Michael S. Gordon

IPC: H05K7/20

CPC classification number: H05K7/20763 ,  H05K7/20145 ,  H05K7/20172 ,  H05K7/20718

Abstract: A system, an article of manufacture, and a method are disclosed. The system includes a set of components in an enclosure. The set of components includes electronic devices and airflow moving components configured to maintain airflow across the electronic devices from a front plenum of the enclosure to a rear plenum of the enclosure and direct air from the rear plenum through the first heat exchanger. The set of components also includes a first heat exchanger configured to circulate a cooling liquid and a second heat exchanger configured to maintain a constant temperature of the cooling liquid, wherein the constant temperature is a temperature of the cooling liquid within a threshold distance from a selected temperature.

公开(公告)号：US10753236B2

公开(公告)日：2020-08-25

申请号：US16576930

申请日：2019-09-20

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION

Inventor： Levi A. Campbell ,  Milnes P. David ,  Dustin W. Demetriou ,  Roger R. Schmidt ,  Robert E. Simons

IPC: F01K25/08 ,  H02P9/04 ,  F01K5/00 ,  H05K7/20 ,  F25B15/00 ,  F25B19/00 ,  F25B27/02 ,  F25B49/00

Abstract: Systems and methods are provided for data center cooling by vaporizing fuel using data center waste heat. The systems include, for instance, an electricity-generating assembly, a liquid fuel storage, and a heat transfer system. The electricity-generating assembly generates electricity from a fuel vapor for supply to the data center. The liquid fuel storage is coupled to supply the fuel vapor, and the heat transfer system is associated with the data center and the liquid fuel storage. In an operational mode, the heat transfer system transfers the data center waste heat to the liquid fuel storage to facilitate vaporization of liquid fuel to produce the fuel vapor for supply to the electricity-generating assembly. The system may be implemented with the liquid fuel storage and heat transfer system being the primary fuel vapor source, or a back-up fuel vapor source.

公开(公告)号：US10299409B2

公开(公告)日：2019-05-21

申请号：US14831090

申请日：2015-08-20

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION

Inventor： Levi A. Campbell ,  Christopher R. Ciraulo ,  Milnes P. David ,  Dustin W. Demetriou ,  Robert K. Mullady ,  Roger R. Schmidt

IPC: H05K7/20

Abstract: Apparatuses and methods are provided for blocking removal of an air-moving assembly from a chassis when in operational state. The apparatus includes a protective louver assembly having a louver(s) and an interlock element(s). The louver(s) is disposed at an air inlet or an air outlet of the air-moving assembly, and pivots between an operational and a quiesced orientation, dependent on presence or absence, respectively, of airflow through the air-moving assembly. The interlock element(s) is associated with the louver(s) to pivot with the louver(s) between the operational orientation and the quiesced orientation. In the operational orientation, the interlock element(s) blocks, at least in part, access to at least one fastener securing the air-moving assembly within the chassis, and thereby prevents removal of the air-moving assembly from the chassis when in the operational state.

公开(公告)号：US10271459B2

公开(公告)日：2019-04-23

申请号：US14565740

申请日：2014-12-10

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION

Inventor： Levi A. Campbell ,  Christopher R. Ciraulo ,  Milnes P. David ,  Dustin W. Demetriou ,  Robert K. Mullady ,  Roger R. Schmidt

IPC: F04D25/14 ,  H05K7/20 ,  F04D29/70

Abstract: Apparatuses and methods are provided for protectively covering an air inlet or outlet of an air-moving assembly. The apparatus includes a protective cover assembly, which includes a retractable cover and a spring-biasing mechanism. The retractable cover transitions between a retracted state, when the air-moving assembly is operatively positioned within the chassis, and in extended state, when the air-moving assembly is withdrawn from the chassis. In retracted state, the retractable cover is retracted away from the air inlet or outlet, and in extended state, the retractable cover covers, at least partially, the air inlet or outlet. The spring-biasing mechanism is coupled to the retractable cover and biases the retractable cover in the extended state when the air-moving assembly is withdrawn from the chassis, and compresses to allow transition of the retractable cover to the retracted state as the air-moving assembly is inserted into operative position within the chassis.

公开(公告)号：US10244665B2

公开(公告)日：2019-03-26

申请号：US14960862

申请日：2015-12-07

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION

Inventor： Levi A. Campbell ,  Richard C. Chu ,  Milnes P. David ,  Michael J. Ellsworth, Jr. ,  Madhusudan K. Iyengar ,  Roger R. Schmidt ,  Robert E. Simons

IPC: G05D23/00 ,  H05K7/20 ,  G05D23/19 ,  G05B15/02

Abstract: Energy efficient control of cooling system cooling of an electronic system is provided based, in part, on weighted cooling effectiveness of the components. The control includes automatically determining speed control settings for multiple adjustable cooling components of the cooling system. The automatically determining is based, at least in part, on weighted cooling effectiveness of the components of the cooling system, and the determining operates to limit power consumption of at least the cooling system, while ensuring that a target temperature associated with at least one of the cooling system or the electronic system is within a desired range by provisioning, based on the weighted cooling effectiveness, a desired target temperature change among the multiple adjustable cooling components of the cooling system. The provisioning includes provisioning applied power to the multiple adjustable cooling components via, at least in part, the determined control settings.

公开(公告)号：US10238009B2

公开(公告)日：2019-03-19

申请号：US15004303

申请日：2016-01-22

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION

Inventor： Timothy J. Chainer ,  Milnes P. David ,  Madhusudan K. Iyengar ,  Pritish R. Parida ,  Robert E. Simons

IPC: G05D23/00 ,  H05K7/20 ,  F28F27/02 ,  G06F1/20 ,  G05D23/19

Abstract: Cooling control methods include measuring a temperature of at least one component of each of multiple nodes and finding a maximum component temperature across all such nodes, comparing the maximum component temperature to a first and second component threshold and comparing the air temperature to a first and second air threshold, and controlling a proportion of coolant flow and a coolant flow rate to the air-to-liquid heat exchanger and the nodes based on the comparisons.

公开(公告)号：US09763357B2

公开(公告)日：2017-09-12

申请号：US14826433

申请日：2015-08-14

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION

Inventor： Levi A. Campbell ,  Richard C. Chu ,  Milnes P. David ,  Michael J. Ellsworth, Jr. ,  Madhusudan K. Iyengar ,  Roger R. Schmidt ,  Robert E. Simons

IPC: H05K3/36 ,  H05K7/20

CPC classification number: H05K7/20218 ,  H05K7/2039 ,  H05K7/20772 ,  Y10T29/4935

Abstract: Methods of fabricating cooling apparatuses with coolant filters are provided which facilitate heat transfer from an electronic component(s). The method includes providing a cooling apparatus which includes a liquid-cooled heat sink with a thermally conductive structure having a coolant-carrying compartment including a region of reduced cross-sectional coolant flow area. The heat sink includes a coolant inlet and outlet in fluid communication with the compartment, and the region of reduced cross-sectional coolant flow area provides an increased effective heat transfer coefficient between a main heat transfer surface of the conductive structure and the coolant. A coolant loop is also provided coupled to the coolant inlet and outlet to facilitate flow of coolant through the coolant-carrying compartment, and a coolant filter positioned to filter contaminants from the coolant passing through the heat sink. The coolant filter has a larger cross-sectional coolant flow area than the region of reduced cross-sectional coolant flow area.

公开(公告)号：US20170198985A1

公开(公告)日：2017-07-13

申请号：US15470063

申请日：2017-03-27

Applicant: International Business Machines Corporation

Inventor： Bjorn J. Ahbel ,  Wiren D. Becker ,  Marc H. Coq ,  Milnes P. David ,  Ryan N. Elsasser ,  Syed F. Hossain

IPC: F28F3/06 ,  F28D9/00

CPC classification number: F28F3/06 ,  F28D9/0087 ,  F28F13/08 ,  F28F27/02 ,  F28F2215/14 ,  F28F2240/00 ,  H01L23/34 ,  H01L23/3672

Abstract: A heat sink structure is provided having fins mechanically altered dynamically to change and optimize the heat sink's performance based on certain environmental conditions. Specifically, the shape of fins of the heat sink structure is dynamically altered in response to environmental conditions that indicate the need for increased thermal performance by spreading the fins through a mechanical device dynamically, or by collapsing the fins to reduce pressure drop across a region when increased thermal performance is not needed.

公开(公告)号：US09687943B2

公开(公告)日：2017-06-27

申请号：US15183104

申请日：2016-06-15

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION

Inventor： Levi A. Campbell ,  Richard C. Chu ,  Milnes P. David ,  Michael J. Ellsworth, Jr. ,  Madhusudan K. Iyengar ,  Robert E. Simons

IPC: B23P15/26 ,  H05K7/20 ,  G06F1/20 ,  F28F3/00 ,  F28F3/12 ,  F28F13/00 ,  F28D15/02

CPC classification number: B23P15/26 ,  F28D15/0266 ,  F28F3/00 ,  F28F3/12 ,  F28F13/00 ,  G06F1/20 ,  H05K7/20254 ,  H05K7/20272 ,  H05K7/2029 ,  H05K7/20772 ,  Y10T29/4935

Abstract: A heat sink, and cooled electronic structure and cooled electronics apparatus utilizing the heat sink are provided. The heat sink is fabricated of a thermally conductive structure which includes one or more coolant-carrying channels coupled to facilitate the flow of coolant through the coolant-carrying channel(s). The heat sink further includes a membrane associated with the coolant-carrying channel(s). The membrane includes at least one vapor-permeable region, which overlies a portion of the coolant-carrying channel(s) and facilitates removal of vapor from the coolant-carrying channel(s), and at least one orifice coupled to inject coolant onto at least one surface of the coolant-carrying channel(s) intermediate opposite ends of the channel(s).

公开(公告)号：US09686891B2

公开(公告)日：2017-06-20

申请号：US14791681

申请日：2015-07-06

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION

Inventor： Levi A. Campbell ,  Milnes P. David ,  Dustin W. Demetriou ,  Michael J. Ellsworth, Jr. ,  Roger R. Schmidt ,  Robert E. Simons

IPC: H05K7/20

CPC classification number: H05K7/20781 ,  H05K7/20736 ,  H05K7/20836

Abstract: Thermoelectric-enhanced, rack-level cooling of airflow entering an electronics rack is provided by a cooling apparatus, which includes: an air-to-liquid heat exchanger; a coolant loop coupled to the heat exchanger, the coolant loop including a first loop portion and a second loop portion, where the heat exchanger exhausts heated coolant to the first loop portion and receives cooled coolant from the second loop portion. The cooling apparatus further includes a heat rejection unit and a thermoelectric heat pump(s). The heat rejection unit is coupled to the coolant loop between the first and second loop portions, and provides partially-cooled coolant to the second loop portion. The thermoelectric heat pump is disposed with the first and second loop portions coupled to opposite sides to transfer heat from the partially-cooled coolant within the second loop portion to provide the cooled coolant before entering the air-to-liquid heat exchanger.