公开(公告)号：US3547306A

公开(公告)日：1970-12-15

申请号：US3547306D

申请日：1968-09-03

Applicant: HENRY R NATTERSTAD

Inventor： NATTERSTAD HENRY R

IPC: F15B1/08 ,  B65D87/18

CPC classification number: F15B1/08 ,  F15B2201/205 ,  F15B2201/3151 ,  F15B2201/4155 ,  F15B2201/51

公开(公告)号：US2895507A

公开(公告)日：1959-07-21

申请号：US53028755

申请日：1955-08-24

Applicant: CHAMBERLAIN CORP

Inventor： ORSER LAWRENCE D

IPC: F15B1/027 ,  F15B1/08 ,  F16L55/052

CPC classification number: F15B1/08 ,  F15B1/027 ,  F15B2201/205 ,  F15B2201/305 ,  F15B2201/411 ,  F15B2201/413 ,  F15B2201/4155 ,  F15B2201/51 ,  F16L55/052

公开(公告)号：US20240151252A1

公开(公告)日：2024-05-09

申请号：US18415072

申请日：2024-01-17

Applicant: GJR Meyer Service, Inc.

Inventor： Gary Michael Elsik ,  Noel Donavan McKim ,  Frank Michael Gonzalez

IPC: F15B21/048

CPC classification number: F15B21/048 ,  F15B2201/51 ,  F15B2211/205

Abstract: A system for automatically actuating a hydraulic accumulator—useful for oil collection systems—capable of operation while maintaining a zero or near zero draw of electrical energy.

公开(公告)号：US11927205B2

公开(公告)日：2024-03-12

申请号：US17796438

申请日：2021-02-19

Applicant: Komatsu Ltd.

Inventor： Yuichi Hishinuma ,  Shinobu Nagura

IPC: F15B11/024 ,  E02F9/22 ,  F15B11/17

CPC classification number: F15B11/024 ,  E02F9/2239 ,  E02F9/2242 ,  E02F9/2285 ,  E02F9/2292 ,  E02F9/2296 ,  F15B11/17 ,  E02F9/2217 ,  E02F9/2282 ,  F15B2201/51 ,  F15B2211/20546 ,  F15B2211/20576 ,  F15B2211/3056 ,  F15B2211/3133 ,  F15B2211/355 ,  F15B2211/6313 ,  F15B2211/6355

Abstract: A hydraulic system includes: an arm hydraulic cylinder; a first hydraulic pump and a second hydraulic pump; an arm first direction switching valve; an arm second direction switching valve; and a controller that controls an operation of the arm second direction switching valve when the arm hydraulic cylinder is extended and operated. Further, the arm first direction switching valve incorporates an arm regeneration passage capable of supplying oil when the arm hydraulic cylinder is extended and operated, and the controller monitors a pressure state of the arm hydraulic cylinder, and when determining that oil flow through the arm regeneration passage is possible, the controller blocks oil flow between the arm hydraulic cylinder and the arm second direction switching valve, and otherwise, the controller operates the arm second direction switching valve so that oil can be supplied from the second hydraulic pump to the bottom chamber.

公开(公告)号：US20230382558A1

公开(公告)日：2023-11-30

申请号：US18170145

申请日：2023-02-16

Applicant: Hood Technology Corporation

Inventor： Andreas H. von Flotow ,  Corydon C. Roeseler ,  Daniel Pepin Reiss ,  Jessie Massong

IPC: B64F1/02 ,  B65H54/28 ,  F15B9/14 ,  F15B13/02 ,  F15B1/02 ,  F15B13/04 ,  F15B1/26 ,  B64C39/02

CPC classification number: B64F1/0295 ,  B65H54/28 ,  F15B9/14 ,  F15B13/024 ,  F15B1/021 ,  F15B13/0417 ,  F15B1/26 ,  B64C39/024 ,  B64F1/029 ,  F15B2201/51 ,  B65H2403/93 ,  B65H2404/40 ,  B65H2404/742 ,  B65H2701/30 ,  B64U10/13

Abstract: Various embodiments of the present disclosure provide a rotorcraft-assisted system and method for launching and retrieving a fixed-wing aircraft into and from free flight. The launch and retrieval system includes a modular multicopter, a storage and launch system, an anchor system, a flexible capture member, and an aircraft-landing structure. The multicopter is attachable to the fixed-wing aircraft to facilitate launching the fixed-wing aircraft into free, wing-borne flight. The storage and launch system is usable to store the multicopter (when disassembled) and to act as a launch mount for the fixed-wing aircraft by retaining the fixed-wing aircraft in a desired launch orientation. The anchor system is usable with the multicopter, the flexible capture member, and the aircraft-landing structure to retrieve the fixed-wing aircraft from free, wing-borne flight.

公开(公告)号：US20230349403A1

公开(公告)日：2023-11-02

申请号：US18310080

申请日：2023-05-01

Applicant: GJR Meyer Service, Inc.

Inventor： Gary Michael Elsik ,  Noel Donavan McKim ,  Frank Michael Gonzalez

IPC: F15B21/048

CPC classification number: F15B21/048 ,  F15B2201/51 ,  F15B2211/205

Abstract: A system for automatically actuating a hydraulic accumulator—useful for oil collection systems—capable of operation while maintaining a zero or near zero draw of electrical energy.

公开(公告)号：US20230265864A1

公开(公告)日：2023-08-24

申请号：US17651884

申请日：2022-02-21

Applicant: DEERE & COMPANY

Inventor： JEFFREY L. LUBBEN ,  CRAIG A. PUETZ ,  Nathanael K. Rehn

IPC: F15B1/04 ,  B60T13/14 ,  B60D1/62 ,  B62D5/30 ,  F15B13/02

CPC classification number: F15B1/04 ,  B60T13/14 ,  B60D1/62 ,  B62D5/30 ,  F15B13/024 ,  B60T2270/402 ,  F15B2201/51

Abstract: An auxiliary hydraulic system including an accumulator, a control valve, and a hydraulic connector. The accumulator connects to a primary hydraulic system including a hydraulic pump, a brake circuit, and a steering circuit. The control valve selectively allows or prevents flow from an accumulator to at least one of the brake circuit and the steering circuit. The hydraulic connector selectively connects an external source to the accumulator and the control valve.

公开(公告)号：US20180306317A1

公开(公告)日：2018-10-25

申请号：US15496626

申请日：2017-04-25

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Xuefeng T Tao ,  Jeryl McIver ,  Leo P Dion ,  Greg Perantoni

IPC: F16H61/12 ,  F15B1/02 ,  F15B1/033 ,  F16H61/00 ,  F16H61/30

CPC classification number: F16H61/12 ,  F15B1/024 ,  F15B1/033 ,  F15B2201/51 ,  F16H61/0021 ,  F16H61/30 ,  F16H2061/0034 ,  F16H2061/1212 ,  F16H2061/1284 ,  F16H2061/305

Abstract: A pressure sensor rationality diagnostic for a dual clutch transmission includes a series of sensor tests. One such test includes charging an oil accumulator to a maximum pressure and storing the maximum pressure value. After performing a discharge pressure event and measuring the pressure value, the difference between the max pressure value and the discharge pressure value is calculated to determine if the difference is less than a predetermined threshold. If the difference is less than the predetermined threshold then at least one remedial action is performed which may include a driver alert or default charging mode. Additionally, similar sensor tests are performed to determine if faults exists and, if true, at least one remedial action is performed.

公开(公告)号：US20180209451A1

公开(公告)日：2018-07-26

申请号：US15736444

申请日：2016-06-14

Applicant: Sikorsky Aircraft Corporation

Inventor： Brian D. LeFevre

IPC: F15B19/00 ,  F15B1/08 ,  F15B21/04

CPC classification number: F15B19/005 ,  B64C27/64 ,  B64F5/60 ,  F15B1/08 ,  F15B20/005 ,  F15B21/045 ,  F15B2201/205 ,  F15B2201/505 ,  F15B2201/51 ,  F15B2211/6306 ,  F15B2211/6343

Abstract: A method for diagnosing leaks in a hydraulic accumulator includes measuring the time required to discharge the hydraulic accumulator to determine an actual discharge duration. The method includes comparing the actual discharge duration to an expected discharge duration to generate a condition indicator. The condition indicator correlates to the presence or absence of a leak.

公开(公告)号：US09879700B1

公开(公告)日：2018-01-30

申请号：US14510416

申请日：2014-10-09

Applicant: Google Inc.

Inventor： Zachary John Jackowski ,  Stephen Berard ,  Alex Khripin ,  Alfred Anthony Rizzi

IPC: F15B1/04 ,  F15B21/00 ,  F15B1/033

CPC classification number: F15B1/04 ,  F15B1/033 ,  F15B21/001 ,  F15B2201/51 ,  F15B2201/515 ,  Y10S901/22

Abstract: A control system may receive sensor data indicative of respective fluid levels of two or more hydraulic accumulators configured to operate at respective target fluid levels within a hydraulic system. The control system may determine respective errors of the hydraulic accumulators based on the respective fluid levels and respective target fluid levels of the hydraulic accumulators. The respective errors may correspond to pressure errors, fluid volume errors, or other types of errors of the hydraulic accumulators. Responsive to determining the respective errors, the control system may determine that the error of a given hydraulic accumulator is greater than errors of the other hydraulic accumulators and provide instructions to control a hydraulic valve to supply fluid from a single pump of the hydraulic system to the given hydraulic accumulator.