IP Library Granted Patent US 7,363,960
Granted Patent B2
US 7,363,960 · App. 09/822,073 · Granted Apr 29, 2008

Heat transfer of a remote heat source using a loop heat pipe

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Quick Facts
Patent No.
US 7,363,960
App. No.
09/822,073
Granted
Apr 29, 2008
Kind
B2
Abstract

Heat transfer systems and methods 30 for use on a spacecraft that use a loop heat pipe to transfer heat from a remotely located heat source to a thermal radiator or other heat dissipating apparatus. The loop heat pipe is a two phase heat transfer device that has an evaporator coupled to the heat source and a condenser coupled to the thermal radiator or other heat dissipating apparatus. The loop heat pipe comprises thin walled tubing to connect the evaporator and condenser. The thin walled tubing allows the loop heat pipe to be flexible. This flexibility offers significant advantages in terms of routing and accommodating design

Claims (15)

1. A heat transfer system comprising:

a spacecraft comprising a heat dissipating system;

a remotely-located heat source disposed on the spacecraft at a location that is remote from the heat dissipating system and which is not located on a heat pipe panel; and

a loop heat pipe thermally coupled between the remotely-located heat source and the heat dissipating system for coupling heat generated by the heat source to the heat dissipating system.

2. The heat transfer system recited in claim 1 wherein the loop heat pipe comprises flexible thin walled tubing coupled between an evaporator that is thermally coupled to the remotely-located heat source and a condenser that is thermally coupled to the heat dissipating system.

3. The spacecraft recited in claim 2 wherein the loop heat pipe comprises flexible thin walled tubing coupled between an evaporator that is thermally coupled to the remotely-located heat source and a condenser that is thermally coupled to heat dissipating system.

4. A spacecraft comprising:

a heat dissipating system for radiating heat into space;

a remotely-located heat source disposed at a location that is remote from the heat dissipating system and which is not located on a heat pipe panel; and

a loop heat pipe thermally coupled between the remotely-located heat source and the heat dissipating system for coupling heat generated by the remotely-located heat source to the heat dissipating system.

5. A heat dissipation method for use on a spacecraft comprising the steps of:

disposing a remotely-located heat source on a spacecraft at a location that is remote from a heat dissipating system and which is not located on a heat pipe panel;

thermally coupling a loop heat pipe between the remotely-located heat source and the heat dissipating system; and

coupling heat generated by the remotely-located heat source to the heat dissipating system by way of the loop heat pipe.

6. The method recited in claim 5 wherein the loop heat pipe comprises flexible thin walled tubing coupled between an evaporator that is thermally coupled to the remotely-located heat source and a condenser that is thermally coupled to heat dissipating system.

Assignments (10)
CHANGE OF NAME Recorded Jun 5, 2023
From: SPACE SYSTEMS/LORAL, LLC
To: MAXAR SPACE LLC
Reel/Frame 063861/0016 →
INTELLECTUAL PROPERTY SECURITY AGREEMENT Recorded May 5, 2023
From: MAXAR INTELLIGENCE INC. (F/K/A DIGITALGLOBE, INC.); AURORA INSIGHT INC.; MAXAR MISSION SOLUTIONS INC. ((F/K/A RADIANT MISSION SOLUTIONS INC. (F/K/A THE RADIANT GROUP, INC.)); MAXAR SPACE LLC (F/K/A SPACE SYSTEMS/LORAL, LLC); SPATIAL ENERGY, LLC; MAXAR SPACE ROBOTICS LLC ((F/K/A SSL ROBOTICS LLC) (F/K/A MDA US SYSTEMS LLC)); MAXAR TECHNOLOGIES HOLDINGS INC.
To: SIXTH STREET LENDING PARTNERS, AS ADMINISTRATIVE AGENT
Reel/Frame 063660/0138 →
TERMINATION AND RELEASE OF SECURITY INTEREST IN PATENTS AND TRADEMARKS - RELEASE OF REEL/FRAME 051258/0720 Recorded May 4, 2023
From: ROYAL BANK OF CANADA, AS AGENT
To: MAXAR INTELLIGENCE INC.; MAXAR SPACE LLC
Reel/Frame 063542/0543 →
TERMINATION AND RELEASE OF SECURITY INTEREST IN PATENTS AND TRADEMARKS - RELEASE OF REEL/FRAME 044167/0396 Recorded May 4, 2023
From: ROYAL BANK OF CANADA, AS AGENT
To: MAXAR INTELLIGENCE INC.; MAXAR SPACE LLC
Reel/Frame 063543/0001 →
RELEASE OF SECURITY INTEREST Recorded Jun 21, 2022
From: WILMINGTON TRUST, NATIONAL ASSOCIATION
To: DIGITALGLOBE, INC.; SPACE SYSTEMS/LORAL, LLC; RADIANT GEOSPATIAL SOLUTIONS LLC
Reel/Frame 060390/0282 →
PATENT SECURITY AGREEMENT Recorded Sep 23, 2020
From: SPACE SYSTEMS/LORAL, LLC
To: WILMINGTON TRUST, NATIONAL ASSOCIATION, AS NOTES COLLATERAL AGENT
Reel/Frame 053866/0810 →
SECURITY AGREEMENT (NOTES) Recorded Dec 12, 2019
From: DIGITALGLOBE, INC.; RADIANT GEOSPATIAL SOLUTIONS LLC; SPACE SYSTEMS/LORAL, LLC (F/K/A SPACE SYSTEMS/LORAL INC.)
To: WILMINGTON TRUST, NATIONAL ASSOCIATION, - AS NOTES COLLATERAL AGENT
Reel/Frame 051262/0824 →
AMENDED AND RESTATED U.S. PATENT AND TRADEMARK SECURITY AGREEMENT Recorded Dec 11, 2019
From: SPACE SYSTEMS/LORAL, LLC
To: ROYAL BANK OF CANADA, AS COLLATERAL AGENT
Reel/Frame 051258/0720 →
SECURITY INTEREST Recorded Oct 5, 2017
From: DIGITALGLOBE, INC.; MACDONALD, DETTWILER AND ASSOCIATES LTD.; MACDONALD, DETTWILER AND ASSOCIATES CORPORATION; MACDONALD, DETTWILER AND ASSOCIATES INC.; MDA GEOSPATIAL SERVICES INC.; SPACE SYSTEMS/LORAL, LLC; MDA INFORMATION SYSTEMS LLC
To: ROYAL BANK OF CANADA, AS THE COLLATERAL AGENT
Reel/Frame 044167/0396 →
TERMINATION AND RELEASE OF SECURITY INTEREST IN PATENT RIGHTS Recorded Nov 2, 2012
From: JPMORGAN CHASE BANK, N.A.
To: SPACE SYSTEMS/LORAL, INC.
Reel/Frame 029228/0203 →