公开(公告)号：US12196195B2

公开(公告)日：2025-01-14

申请号：US16899785

申请日：2020-06-12

Applicant: Deere & Company

Inventor： Jeffrey L. Lubben ,  Dwayne A. Nystrom ,  Thomas Butts

IPC: F04B49/00 ,  F04B17/05 ,  F04B23/04 ,  F04B49/02 ,  F04B49/20

Abstract: Systems and methods are provided for a demand-based hydraulic system. A clutch is positioned between a hydraulic pump and an engine. The clutch is selectively engaged to power the hydraulic pump based on a level of demand for hydraulic power. A control system is also provided to control the clutch and/or the pump in accordance with a plurality of operating mode.

公开(公告)号：US20240426290A1

公开(公告)日：2024-12-26

申请号：US18755916

申请日：2024-06-27

Applicant: KAESER KOMPRESSOREN SE

Inventor： Florian WAGNER ,  Andreas BIRKENFELD ,  Anika HARTWICH

IPC: F04B49/06 ,  F04B41/06 ,  F04B49/00 ,  F04B51/00 ,  F04D25/16 ,  F04D27/00 ,  G05B17/02 ,  G05D16/20

Abstract: A method for controlling and/or monitoring a compressor system is provided. The compressor system includes one or more compressors and one or more peripheral devices. The compressors and the peripheral devices are arranged or connected in a predetermined configuration. The compressor system is controlled and/or monitored by a control/monitoring unit. After creation of the compressor system, the concretely existing configuration is input in the form of a P&I diagram by an editor and forms the basis for subsequent control, monitoring, diagnosis or evaluation routines.

公开(公告)号：US12140164B2

公开(公告)日：2024-11-12

申请号：US18177195

申请日：2023-03-02

Applicant: HAWE Hydraulik SE

Inventor： Fabian Kreutmayr ,  Andreas Jell ,  Markus Imlauer

IPC: F15B11/16 ,  F04B1/295 ,  F04B1/324 ,  F04B49/00 ,  F04B49/06 ,  F04B49/08

Abstract: An electrohydraulic control device for an adjustable hydraulic pump system includes a valve device, an electronic control unit and a first fluid sensor. The valve device includes a pressure inlet, a tank outlet and a first electromagnetically actuated valve. An outlet pressure of the first adjustable hydraulic pump system is applied to the pressure inlet. The first fluid sensor detects an actual value of a fluid parameter of the first adjustable hydraulic pump system and transmits it to the electronic control unit. The electronic control unit includes computer-based modeling of the dynamics of the first adjustable hydraulic pump system, and actuates the first electromagnetically actuated valve based on the actual value of the fluid parameter and the computer-based modeling.

公开(公告)号：US20240277919A1

公开(公告)日：2024-08-22

申请号：US18636455

申请日：2024-04-16

Applicant: DEKA Products Limited Partnership

Inventor： Gregory R. Lanier, JR. ,  Larry B. Gray ,  Richard J. Lanigan ,  Dean Kamen ,  Stephen L. Fichera ,  John M. Kerwin

IPC: A61M5/142 ,  A61M5/145 ,  A61M5/168 ,  F04B17/00 ,  F04B17/06 ,  F04B49/00 ,  F04B49/06 ,  G05D7/06

CPC classification number: A61M5/14224 ,  A61M5/14248 ,  A61M5/14586 ,  A61M5/16809 ,  F04B17/00 ,  F04B17/06 ,  F04B49/00 ,  F04B49/065 ,  G05D7/0676 ,  A61M2005/14268 ,  A61M2205/0266 ,  A61M2205/0294 ,  A61M2205/18 ,  A61M2205/3306 ,  A61M2205/3317 ,  A61M2205/3327 ,  A61M2205/3331 ,  A61M2205/3375 ,  A61M2205/3576 ,  A61M2205/502 ,  A61M2205/52 ,  A61M2205/582 ,  A61M2205/8237 ,  A61M2206/22 ,  A61M2209/045

Abstract: A wearable infusion pump assembly includes a reservoir for receiving an infusible fluid, and an external infusion set configured to deliver the infusible fluid to a user. A fluid delivery system is configured to deliver the infusible fluid from the reservoir to the external infusion set. The fluid delivery system includes a volume sensor assembly, and a pump assembly for extracting a quantity of infusible fluid from the reservoir and providing the quantity of infusible fluid to the volume sensor assembly. The volume sensor assembly is configured to determine the volume of at least a portion of the quantity of fluid. The fluid delivery system further includes at least one optical sensor assembly configured to sense the movement of the pump assembly, a first valve assembly configured to selectively isolate the pump assembly from the reservoir, and a second valve assembly configured to selectively isolate the volume sensor assembly from the external infusion set.

公开(公告)号：US12031541B2

公开(公告)日：2024-07-09

申请号：US17729569

申请日：2022-04-26

Applicant: Advanced Flow Solutions, Inc.

Inventor： Blake Wallace ,  Jay Taylor

IPC: F04D15/00 ,  B61D3/16 ,  F04B23/02 ,  F04B25/00 ,  F04B49/00 ,  F04B49/22 ,  F04D13/12 ,  F04D13/16 ,  B65G63/02

CPC classification number: F04D15/0066 ,  B61D3/16 ,  F04B23/02 ,  F04B25/00 ,  F04B49/007 ,  F04B49/22 ,  F04D13/12 ,  F04D13/16 ,  F04D15/0005 ,  F04D15/0072 ,  B65G63/02

Abstract: A liquefied gas unloading and deep evacuation system may more quickly, more efficiently and more completely unload liquefied gases from transport tanks, such as rail cars, into stationary storage tanks or into truck tanks. The system may utilize a two stage compressor, an electric motor, a variable frequency drive, a four way valve, a three way valve, a two way valve, a programmable logic controller based control system and pressure and temperature transmitters. The valving enables deep evacuation of the transport or supply tank to more completely empty the transport tank. The programmable logic controller and variable speed drive may be used to variably control the speed of the two stage compressor so that the system may be running as fast as possible during changes in ambient temperature and/or different stages of offloading the liquefied gases without exceeding the compressor's horsepower limit.

公开(公告)号：US20240200553A1

公开(公告)日：2024-06-20

申请号：US18084993

申请日：2022-12-20

Applicant: Hamilton Sundstrand Corporation

Inventor： Ryan Prescott Susca ,  Ryan Shook

IPC: F04B49/08 ,  F02C7/232 ,  F02C7/236 ,  F02C9/30 ,  F04B49/00 ,  F04B49/22

CPC classification number: F04B49/08 ,  F02C7/232 ,  F02C7/236 ,  F02C9/30 ,  F04B49/002 ,  F04B49/007 ,  F04B49/225 ,  F05D2220/32 ,  F05D2270/64

Abstract: A system includes a variable displacement pump (VDP) with a pump inlet and a pump outlet. The VDP is configured to receive a flow at the pump inlet at a first pressure and to outlet a flow from the pump outlet at a second pressure elevated relative to the first pressure. A second pump is in fluid communication to receive flow at the pump inlet at the first pressure and to outlet flow from an auxiliary outlet. A backup selector is in fluid communication with the pump outlet and with the auxiliary outlet. The backup selector is configured to operate in a normal mode to supply the pump outlet from the VDP and to supply the auxiliary outlet from the second pump. The backup selector is configured to switch to a backup mode to supply the pump outlet from the second pump upon failure of the VDP.

公开(公告)号：US11994124B1

公开(公告)日：2024-05-28

申请号：US18338735

申请日：2023-06-21

Applicant: Evan Scott Guy

Inventor： Evan Scott Guy

IPC: F04B49/22 ,  F04B25/02 ,  F04B49/00 ,  F04B49/20

CPC classification number: F04B49/22 ,  F04B25/02 ,  F04B49/007 ,  F04B49/20

Abstract: A system for compressing gas, including fugitive natural gas emissions from natural gas compression equipment, such that the gas can be reintroduced in an unchanged, undiluted state into a pressurized gas pipeline system such as that used for natural gas. The source of gas can include leakage from natural gas compressor piston rod packing seals, or blowdowns of certain sections of a natural gas pipeline system for purposes of maintenance or emergency operations, or any other leakage source. The current practice within the natural gas pipeline industry is to vent or flare fugitive emissions and blowdown gas to atmosphere.

公开(公告)号：US11946462B2

公开(公告)日：2024-04-02

申请号：US16700407

申请日：2019-12-02

Applicant: Danfoss Power Solutions Inc.

Inventor： Jaromir Tvaruzek ,  Samuel Hall ,  Phil Evans ,  Dennis Greene

IPC: F04B1/26 ,  F01B3/00 ,  F04B1/30 ,  F04B1/34 ,  F04B1/20 ,  F04B49/00 ,  F04B49/12

CPC classification number: F04B1/26 ,  F01B3/0058 ,  F04B1/30 ,  F04B1/34 ,  F04B1/20 ,  F04B49/002 ,  F04B49/12 ,  F15B2211/41536

Abstract: Hydraulic axial piston unit having a rotational group for driving or being driven by a driving shaft, and a tiltable displacement element for adjusting the displacement volume of the rotational group. The rotational group includes a rotatable cylinder block in which working pistons are mounted reciprocally moveable in cylinder bores for conveying hydraulic fluid from an inlet port to an outlet port on a valve segment. At least two control ports are located on the valve segment each between the inlet port and the outlet port. The control ports can be brought sequentially in fluid connection with the cylinder bores when the cylinder block is rotating. At least one hydraulic fluid injector is connected fluidly to one control port, for sequentially injecting pressurized hydraulic fluid via the control port into the passing cylinder bores. Via the other control port hydraulic fluid can be drained from passing cylinder bores.

公开(公告)号：US20240101090A1

公开(公告)日：2024-03-28

申请号：US17769012

申请日：2020-10-14

Applicant: BYD COMPANY LIMITED

Inventor： Yugang YAO ,  Guoshan LIU ,  Donglin SU ,  Jing LIU ,  Nan ZHANG

IPC: B60T13/20 ,  B60T13/74 ,  B60T17/22 ,  F04B17/00 ,  F04B49/00

CPC classification number: B60T13/20 ,  B60T13/745 ,  B60T17/221 ,  F04B17/00 ,  F04B49/00 ,  F04B2201/1201

Abstract: A piston pump group for a brake system and a control method thereof are provided, and the piston pump group includes: a piston, a pump body provided with an operating chamber, and a transmission mechanism used for driving the piston to move in the operating chamber, where the transmission mechanism includes a lead screw transmission assembly, a follower, and a planetary gear assembly used for transmitting power to the lead screw transmission assembly, the follower is fixedly connected to the piston, the lead screw transmission assembly is used for driving the follower to move relative to the operating chamber, and a limiting member used for limiting the movement of the follower is disposed between the lead screw transmission assembly and the follower.

公开(公告)号：US11939973B1

公开(公告)日：2024-03-26

申请号：US18513574

申请日：2023-11-19

Applicant: ZHEJIANG SHIJING TOOLS CO., LTD

Inventor： Shuaijie Xu

IPC: F04B49/06 ,  F04B35/04 ,  F04B35/06 ,  F04B39/12 ,  F04B49/00 ,  F04B49/02 ,  F04B49/08

CPC classification number: F04B49/06 ,  F04B35/04 ,  F04B35/06 ,  F04B39/12 ,  F04B39/121 ,  F04B39/123 ,  F04B49/00 ,  F04B49/022 ,  F04B49/065 ,  F04B49/08 ,  F04B2205/03 ,  F04B2205/04 ,  F04B2205/05

Abstract: The present disclosure relates to the technical field of air pumps on vacuum suction cups, and in particular, to an air pump with an automatic air pumping function. The air pump includes a shell and a sealing ring; an automatic air replenishing mechanism is arranged at one end of the shell, and the other end of the shell is sleeved with a mounting barrel; the automatic air replenishing mechanism includes a battery mounting box mounted on an inner wall of the shell; and a battery pack is arranged inside the battery mounting box.