公开(公告)号：US20250153852A1

公开(公告)日：2025-05-15

申请号：US18506775

申请日：2023-11-10

Applicant: Hamilton Sundstrand Corporation

Inventor： Raphael Mandel ,  Joseph E. Turney ,  Ram Ranjan ,  Matthew L. Pess

IPC: B64D13/06

Abstract: A thermal management system for an aircraft includes a liquid loop, a vapor compression cycle loop, and an air loop. The liquid loop includes a pump to deliver a working fluid a cold sink for cooling a heat load with the working fluid. The vapor compression cycle loop is fluidly coupled to the liquid loop by a separator. The separator is configured to separate a two-phase form of the working fluid into a vapor form of the working fluid for delivery to a compressor of the vapor compression cycle loop and a liquid form of the working fluid for delivery to the liquid loop. The air loop in thermal communication with the working fluid and configured to provide a cooling or heating air for an aircraft cabin.

公开(公告)号：US20250108925A1

公开(公告)日：2025-04-03

申请号：US18479519

申请日：2023-10-02

Applicant: Hamilton Sundstrand Corporation

Inventor： Lance R. Bartosz ,  Matthew L. Pess ,  Mark B. Dowty

IPC: B64D13/08 ,  B64D13/06

Abstract: A method is disclosed for controlling an atmosphere within an aircraft. The method includes sensing, by at least one cabin occupancy sensor, a number of empty seats within a cabin of the aircraft. Data representative of the number of empty seats from the at least one cabin occupancy sensor is communicated by the at least one cabin occupancy sensor to an electronic controller. The electronic controller is in communication with a cabin air circulation system and an environmental control system. The electronic controller sends a flow command to the environmental control system and the cabin air circulation system to adjust a rate of an air inflow into the cabin based on the number of empty seats sensed by the at least one cabin occupancy sensor.

公开(公告)号：US20240271627A1

公开(公告)日：2024-08-15

申请号：US18168734

申请日：2023-02-14

Applicant: Hamilton Sundstrand Corporation

Inventor： Viktor Kilchyk ,  Brent J. Merritt ,  Matthew L. Pess

IPC: F04D25/02 ,  B64D13/06 ,  F04D29/053 ,  F04D29/056 ,  F04D29/40 ,  F25B9/00 ,  F25B9/06

CPC classification number: F04D25/026 ,  B64D13/06 ,  F04D29/053 ,  F04D29/056 ,  F04D29/403 ,  F25B9/004 ,  F25B9/06 ,  B64D2013/064 ,  B64D2013/0648

Abstract: Aircraft air cycle machines include a housing, a shaft arranged within the housing, and a first wheel assembly operably coupled to the shaft and arranged within the housing. The first wheel assembly is configured to rotationally drive the shaft. A second wheel assembly is operably coupled to the shaft and configured to be rotationally driven by the shaft. A magnetic assembly is arranged within the housing and along the shaft. The magnetic assembly includes a stator assembly fixedly connected to the housing and a rotor assembly rotationally coupled to the shaft. The magnetic assembly is arranged along the shaft to provide a gear ratio between the first wheel assembly and the second wheel assembly.

公开(公告)号：US20140260958A1

公开(公告)日：2014-09-18

申请号：US13834731

申请日：2013-03-15

Applicant: HAMILTON SUNDSTRAND CORPORATION

Inventor： Jason Scott Labrie ,  Bruce R. Schroder ,  Matthew L. Pess

IPC: F16J15/00

CPC classification number: F16J15/00 ,  F04B1/0448 ,  F04B53/143 ,  F16J9/20

Abstract: A piston seal includes an inner surface configured to extend proximate a perimeter of a piston. Also included is an outer surface disposed proximate a chamber wall, wherein the chamber wall defines a chamber for the piston and the piston seal to translate within. Further included is a first axial side exposed to a first pressure portion of the chamber. Yet further included is a second axial side exposed to a second pressure portion of the chamber. Also included is at least one pressure differential reducing hole extending radially through the piston seal from the inner surface to the outer surface.

Abstract translation: 活塞密封件包括被构造成在活塞的周边附近延伸的内表面。 还包括设置在室壁附近的外表面，其中室壁限定用于活塞的腔室和活塞密封件在其内平移。 还包括暴露于腔室的第一压力部分的第一轴向侧。 还包括第二轴向侧暴露于腔室的第二压力部分。 还包括至少一个从内表面到外表面径向延伸穿过活塞密封件的减压孔。