公开(公告)号：US20240200880A1

公开(公告)日：2024-06-20

申请号：US18067067

申请日：2022-12-16

Applicant: Raytheon Company

Inventor： Tuan Duong ,  James S. Wilson ,  Miad Yazdani

IPC: F28D15/06 ,  F16K31/00 ,  F16K31/06

CPC classification number: F28D15/06 ,  F16K31/002 ,  F16K31/06

Abstract: A tunable oscillating heat pipe system that includes an oscillating closed loop heat pipe configured for movement of a fluid in an internal passage in the closed loop to transfer heat from a first portion of the closed loop to a second portion. The heat pipe system further includes a valve arranged in a section of the internal passage movable between an open position and a closed position. In the open position, the valve is arranged to permit movement of the fluid in the internal passage and in the closed position, the valve is arranged in the internal passage to limit movement of the fluid in a part of the internal passage. Movement of the valve between the open position and the closed position can be a function of at least one of temperature at the first portion, temperature at the second portion, or temperature at the valve.

公开(公告)号：US20240027139A1

公开(公告)日：2024-01-25

申请号：US17871836

申请日：2022-07-22

Applicant: Raytheon Company

Inventor： Abbas A. Alahyari ,  Miad Yazdani

IPC: F28D15/04 ,  F28D15/02 ,  H05K7/20

CPC classification number: F28D15/043 ,  F28D15/0233 ,  H05K7/20336 ,  F28D15/0208

Abstract: An oscillating heat pipe that can maintain efficient heat transfer even in a high gravity force equivalent environment is provided. The heat pipe can comprise a condenser region having a first plurality of bends, an evaporator region having a second plurality of bends, and a plurality of intermediate portions. The plurality of intermediate portions can extend between the first plurality of bends and the second plurality of bends. The plurality of intermediate portions can include a first intermediate portion and a second intermediate portion. A cross-sectional area of the first intermediate portion can be larger than a cross-sectional area of the second intermediate portion in a plane at a first distance from the evaporator region. The cross-sectional area of at least one of the first or second intermediate portions can increase from the condenser region towards the evaporator region.