公开(公告)号：US11624373B2

公开(公告)日：2023-04-11

申请号：US17711610

申请日：2022-04-01

申请人： Concepts NREC, LLC

发明人： Kerry N. Oliphant ,  Francis A. Di Bella

IPC分类号： F04D29/58 ,  F04D13/04 ,  F01D15/08 ,  F04D25/04 ,  F25J1/02 ,  F15B21/042 ,  F04D27/00 ,  F04D15/00 ,  F28D21/00

摘要： Systems and methods for reducing the pressure of a first pressurized fluid, thereby reducing the temperature of the pressurized fluid, and utilization of the reduced-pressure and temperature fluid to cool a second fluid. Such an approach can enable a reduction in the size and weight of a hydraulic system, utilize waste energy in a system, and/or minimize electrical power requirements of a system, among other benefits.

公开(公告)号：US10988240B2

公开(公告)日：2021-04-27

申请号：US16102179

申请日：2018-08-13

申请人： The Boeing Company

发明人： Arvin Shmilovich ,  Edward Andrew Whalen

IPC分类号： B64C21/04 ,  F15B21/12 ,  F15B21/042 ,  F15D1/12 ,  F15D1/00 ,  F15C1/00 ,  B64D33/02

摘要： A method and apparatus are presented. An active flow control system comprises a flow control valve, a manifold, and a temperature control system. The flow control valve is configured to control a flow of air into the manifold. The manifold is operatively connected to a number of actuators. The temperature control system is configured to heat at least a portion of the flow of air.

公开(公告)号：US20200263802A1

公开(公告)日：2020-08-20

申请号：US16690768

申请日：2019-11-21

申请人： Goodrich Actuation Systems Limited

发明人： Tony Jones ,  Peter William Bacon

IPC分类号： F16K31/06 ,  F16K49/00 ,  B64C25/44 ,  B60T8/00 ,  F15B21/042 ,  H01F7/06

摘要： A solenoid comprises first and second coils connected to an electrical power supply circuit. In a first mode of operation the power supply circuit is arranged to provide a current flowing in opposite directions through the respective first and second coils, e.g. to produce a self-heating effect. In a second mode of operation the power supply circuit is arranged to provide a current flowing in the same direction through the respective first and second coils, e.g. to generate a magnetic force. In some embodiments, the power supply circuit includes a bridge rectifier or full wave rectifier connected to a bi-directional current driver.

公开(公告)号：US10605236B2

公开(公告)日：2020-03-31

申请号：US15764106

申请日：2016-09-21

申请人： Robert Bosch GmbH

发明人： Andreas Guender

IPC分类号： F04B17/03 ,  F04B23/02 ,  F04B53/08 ,  F04B53/16 ,  F15B21/044 ,  F15B21/042

摘要： A hydrostatic compact assembly includes an electric motor, a tank, and a pump. The pump is configured to deliver a pressure fluid from the tank to a consumer connection. The tank has a circular ring-like shape that surrounds the electric motor and the pump.

公开(公告)号：US10557461B1

公开(公告)日：2020-02-11

申请号：US15784880

申请日：2017-10-16

申请人： Hydro-Gear Limited Partnership

发明人： Jesse L. Probst ,  Eric S. Phanco ,  Joseph P. Niemerg ,  Shane A. Deters

IPC分类号： F04B1/20 ,  F01B3/00 ,  F04B1/2078 ,  F04B1/2035 ,  F15B21/042 ,  F01B3/02 ,  F15B11/08 ,  F16D31/02 ,  F15B21/045

摘要： A drive device includes a housing forming a sump. A pump and motor are mounted on a center section having a porting system and a pair of ports with check plugs disposed therein. A bypass arm is engaged to one end of a bypass shaft external to the housing and rotates the bypass shaft to selectively cause engagement fingers to move each check plug to an open position. A housing projection is contacted by the bypass arm to selectively limit rotation thereof. The axes of rotation of a swash plate trunnion shaft, a pump input shaft and a motor output shaft may all be disposed in a single plane. The input shaft is supported by a housing bearing and an opening in the center section and is restrained from axial movement by the bearing and a thrust surface on the center section.

公开(公告)号：US10407869B2

公开(公告)日：2019-09-10

申请号：US15555799

申请日：2015-05-26

申请人： Hitachi Construction Machinery Co., Ltd.

发明人： Jun Nishihata

IPC分类号： E02F9/08 ,  F16H57/04 ,  B60K11/02 ,  F01M5/00 ,  F01P3/20 ,  F15B21/042 ,  B60K11/04 ,  F01M1/16 ,  F02D41/06 ,  F02N19/04 ,  F02N19/10 ,  E02F9/22 ,  E02F9/26 ,  E02F3/32 ,  F01M5/02 ,  E02F9/20

摘要： To provide a construction machine including a novel preheating unit that can efficiently preheat entire circulation channel where fluid flows, and a preheating method of the construction machine. A bypass channel is arranged in a circulation channel through which the fluid is circulated, this bypass channel is provided with the preheating unit that is formed of a heater and a bypass pump. According to such configuration, even in a state circulation of the fluid may stop in the circulation channel, the fluid can be heated while the fluid is circulated through the bypass channel, and therefore the entire circulation channel can be efficiently preheated. Moreover, since retrofitting to the existing circulation channel is possible, sound versatility can be exerted.

公开(公告)号：US11261888B1

公开(公告)日：2022-03-01

申请号：US16703771

申请日：2019-12-04

申请人： Brian Lee Davis

发明人： Brian Lee Davis

IPC分类号： F15B21/042 ,  F04B39/06

摘要： The pump has a body having a heat sink on the body underside. An extension rises from the body. A guide is provided for a piston, which together move up and down relative to the body and extension. The pump is within a tank filled with heating liquid. The heating liquid is separated (directly or indirectly) from a gas cavity with a bladder. The pump can have a coolant cavity partially bordered by a bladder that separates the heating liquid from the gas. A coolant then flows through the cavity over the top of the bladder keeping it cool and preventing bladder degradation. A high temperature liquid system maintains the temperature of the heating liquid. A coolant system maintains the temperature of the coolant. A pressure equalization system maintains balance in pressure between the heating liquid and coolant. A steam system is provided as is a control system.

公开(公告)号：US20210180622A1

公开(公告)日：2021-06-17

申请号：US16712930

申请日：2019-12-12

申请人： The Boeing Company

发明人： Jianmin Liao

IPC分类号： F15B21/042 ,  F02C7/224

摘要： The present disclosure provides an aircraft thermal management system. The aircraft thermal management system includes a first hydraulic system for circulating a first hydraulic fluid, a second hydraulic system for circulating a second hydraulic fluid, and a third hydraulic system for circulating a third hydraulic fluid. The aircraft thermal management system also includes a controller configured to: (i) determine a temperature of the first hydraulic fluid, a temperature of the second hydraulic fluid, and a temperature of the third hydraulic fluid, and (ii) based on the determined temperature of the first hydraulic fluid, utilize the second hydraulic fluid and/or the third hydraulic fluid to modify an operational temperature of the first hydraulic fluid.

公开(公告)号：US10816019B2

公开(公告)日：2020-10-27

申请号：US15969413

申请日：2018-05-02

申请人： THE BOEING COMPANY

发明人： Matthew D. Uhlman ,  Barry D. Hance ,  Herbert Guttler ,  Robert J. Hawk ,  Paul Smith ,  Patrick Fahey ,  Ellen A. Pifer ,  Christopher P. Beamis ,  Ali Abdelmagid ,  Patrick McCormick ,  Mark W. Lesyna

IPC分类号： F15B21/04 ,  F15B21/042 ,  B64C13/40 ,  F15B11/08 ,  F15B20/00

摘要： A hydraulic system (e.g., of an aircraft or other vehicle) includes a pump, a pressure line coupled to the pump and configured to distribute pressurized hydraulic fluid, and a return line configured to return hydraulic fluid to a reservoir. The hydraulic system also includes an auxiliary leakage valve coupled to the pressure line, to the return line, and to an actuator. The auxiliary leakage valve is configured to receive a control signal and, based on the control signal, selectively open a restricted fluid path. The restricted fluid path couples the pressure line to the return line to allow a restricted amount of the hydraulic fluid to flow from the pressure line to the return line.

公开(公告)号：US20200240440A1

公开(公告)日：2020-07-30

申请号：US16848513

申请日：2020-04-14

申请人： KUBOTA CORPORATION

发明人： Yuji FUKUDA ,  Kazuyoshi ARII ,  Hiroaki NAKAGAWA

IPC分类号： F15B13/042 ,  F15B11/08 ,  F15B13/04 ,  E02F9/22 ,  F16H61/4035 ,  E02F3/43 ,  F15B21/042 ,  F16H61/44 ,  F15B1/26 ,  E02F3/34 ,  F16H61/433 ,  E02F9/16

摘要： A hydraulic system for a work machine includes a tank to store an operation fluid, a hydraulic device to be operated by the operation fluid, a control valve to control the hydraulic device, a first fluid tube connecting the hydraulic device and the control valve, the first fluid tube being to supply the operation fluid from the control valve to the hydraulic device, a second fluid tube branching from the first fluid tube and connected to the tank, a switch valve provided to the second fluid tube, the switch valve being to control a flow rate of the operation fluid, and an oil cooler provided to the second fluid tube between the switch valve and the tank.