公开(公告)号：US12077426B1

公开(公告)日：2024-09-03

申请号：US18207865

申请日：2023-06-09

Applicant: PARAGON TANK TRUCK EQUIPMENT, LLC

Inventor： Peter Charles Goodier ,  Shawn R. Moore

IPC: B67D7/32 ,  B67D7/62 ,  F04C14/28

CPC classification number: B67D7/3272 ,  B67D7/62 ,  F04C14/28 ,  F04C2270/12 ,  F04C2270/86

Abstract: A liquid discharge system includes a liquid product pump having a sensor for monitoring vibrations passing through an outer casing of the liquid product pump to detect an occurrence of cavitation within the liquid product pump. A system and method for controlling the operation of a liquid product pump in an engine-driven hydraulic discharge system. The liquid product pump has a vibration sensor operable to detect cavitation within the liquid product pump and for providing an electrical vibration signal to a speed control module. The speed control module is operable to process the vibration signal and to produce an electrical speed control signal that is provided to an electronic actuator. The electronic actuator is operable to actuate a motor control lever of a variable speed hydraulic motor to adjust the operating speed of the liquid product pump.

公开(公告)号：US11976648B2

公开(公告)日：2024-05-07

申请号：US17269101

申请日：2019-11-28

Applicant: Hitachi Industrial Equipment Systems Co., Ltd.

Inventor： Akihiro Yamamoto ,  Yoshiyuki Kanemoto ,  Daichi Oka

IPC: F04B49/10 ,  F04B49/08 ,  F04C14/28 ,  F04C28/28

CPC classification number: F04B49/103 ,  F04B49/08 ,  F04C14/28 ,  F04C28/28 ,  F04B2201/0801 ,  F04B2203/0201 ,  F04B2203/0202 ,  F04B2203/0205 ,  F04B2205/05 ,  F04C2270/19 ,  F04C2270/44

Abstract: Even when abnormal heat generation occurs during operation in a state where the temperature of a compressor is not increased, abnormality cannot be detected. A fluid machine includes a fluid machine body; a motor that drives the fluid machine body; a temperature sensor that measures a temperature of the fluid machine body; and a control unit that controls the fluid machine body. The control unit changes a temperature threshold value based on at least one of a pressure of a fluid discharged by the fluid machine body and a frequency of a voltage input into the motor, and issues a notification when the temperature of the compressor body measured by the temperature sensor exceeds the temperature threshold value.

公开(公告)号：US20230366397A1

公开(公告)日：2023-11-16

申请号：US18317536

申请日：2023-05-15

Applicant: Clark Equipment Company

Inventor： Jonathan Bishop ,  Robert Edwards ,  Brandon Ahrens ,  Shane Dyson

IPC: F04C14/06 ,  F04C18/16 ,  F04C14/28 ,  F04C14/24

CPC classification number: F04C14/06 ,  F04C18/16 ,  F04C14/28 ,  F04C14/24 ,  F04D29/063

Abstract: Systems and methods for a compressor system are provided for selectively operating the compressor system with reduced power consumption. An output demand level of the compressor system can be monitored over time to identify a demand profile. A pressure setpoint for the compressor system can be selectively adjusted based on the demand profile, including to selectively transition between an operational pressure setpoint for an active demand profile and a reduced pressure setpoint for an inactive demand profile.

公开(公告)号：US20230332599A1

公开(公告)日：2023-10-19

申请号：US18026587

申请日：2021-09-14

Applicant: ZHEJIANG SANHUA AUTOMOTIVE COMPONENTS CO., LTD.

Inventor： Lingli WAN ,  Lili LIU ,  Wei YE

IPC: F04C14/28 ,  F04C11/00 ,  F04C2/10

CPC classification number: F04C14/28 ,  F04C11/008 ,  F04C2/10 ,  H02K11/25

Abstract: An electronic oil pump includes a first rotor assembly, a stator assembly, an electric control board assembly, an isolation member and thermal conductive members; the first rotor assembly is located in a first chamber of the electronic oil pump, the thermal conductive members each comprise a first portion and a second portion, the first portions being located in a second chamber of the electronic oil pump, the second portions being located in a third chamber of the electronic oil pump; the electric control board assembly includes a base plate and a temperature-sensing unit, the base plate including first holes, an upper plate layer, a lower plate layer and at least one metal layer, a part of the second portions being located in the first holes; the temperature-sensing unit is located at one side of the second portion, there is a preset distance between the temperature-sensing unit and the second portion.

公开(公告)号：US20230265846A1

公开(公告)日：2023-08-24

申请号：US17921483

申请日：2021-04-27

Applicant: VOGELSANG GMBH & CO. KG

Inventor： MICHAEL ROLFES ,  Nadja Hüdepohl ,  Peter Hartogh

IPC: F04C14/28 ,  F04C2/16

CPC classification number: F04C14/28 ,  F04C2/16 ,  F04C2240/81 ,  F04C2270/06 ,  F04C2270/12 ,  F04C2270/18 ,  F04C2270/19

Abstract: An eccentric screw pump hasa pump housing having a pump inlet opening and a pump outlet opening, a stator disposed in the pump housing, a rotor disposed in the stator, a drive unit comprising a drive motor and a driveshaft which for transmitting a torque connects the drive motor to the rotor, wherein the rotor for a rotating movement about a rotating axle is guided in the stator, a state sensor for detecting a state variable of the eccentric screw pump, where the state sensor, for detecting a state variable on the rotor or on the driveshaft, is disposed on the rotor or the driveshaft, or is connected to the rotor or the driveshaft by means of a signal line and is disposed so as to be spaced apart from the rotor or the driveshaft.

公开(公告)号：US11644032B2

公开(公告)日：2023-05-09

申请号：US17255365

申请日：2019-07-01

Applicant: ebm-papst St. Georgen GmbH & Co. KG

Inventor： Wolfgang Laufer ,  Jens Loeffler ,  Mario Staiger ,  Daniel Hauer ,  Markus Braxmaier

IPC: F04C14/06 ,  F04C5/00 ,  F04C14/08 ,  F04C14/28

CPC classification number: F04C14/06 ,  F04C5/00 ,  F04C14/08 ,  F04C14/28 ,  F04C2240/20 ,  F04C2240/40 ,  F04C2240/81 ,  F04C2270/0525 ,  F04C2270/20

Abstract: The invention relates to an orbital pump for pumping a fluid, wherein the pump comprises at least one pump control system, a motor that can be controlled by the pump control system, a rotor shaft (10) for fluid transport, and a rotor sensor for detecting an absolute angle of rotation of the rotor shaft (40), the rotor sensor is connected to the pump control system and designed to transmit the angle of rotation of the rotor shaft (40) to the pump control system, and the pump control system is designed to rotationally control the rotor shaft (40) by means of the motor until the rotor shaft (40) is in a pre-determined angle of rotation position.

公开(公告)号：US20180223840A1

公开(公告)日：2018-08-09

申请号：US15749893

申请日：2016-07-14

Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.

Inventor： Atsushi NAGANUMA ,  Hideaki OHNISHI

IPC: F04C14/22 ,  F04C2/344 ,  F04C14/24 ,  F04C15/00 ,  F01M1/02

CPC classification number: F04C14/226 ,  F01M1/02 ,  F01M2001/0238 ,  F01M2001/0246 ,  F04C2/344 ,  F04C2/3442 ,  F04C14/22 ,  F04C14/24 ,  F04C14/28 ,  F04C15/0065 ,  F04C15/008 ,  F04C2210/14 ,  F04C2240/811

Abstract: A variable displacement oil pump includes: a pump constituting section; a movable member; an urging mechanism; a control hydraulic chamber group; a drain mechanism arranged to discharge the oil from a specific one control hydraulic chamber of the control hydraulic chamber group; and a control valve which into which the oil of an upstream side that is discharged from the discharge portion, or the oil from the control hydraulic chamber is introduced as a control hydraulic pressure, which is arranged to supply the oil of the upstream side that is discharged from the discharge portion to the specific one control hydraulic chamber, or to discharge the oil from the specific one control hydraulic chamber by the drain mechanism to regulate the pressure of the specific one control hydraulic chamber.

公开(公告)号：US09828992B2

公开(公告)日：2017-11-28

申请号：US14795338

申请日：2015-07-09

Applicant: Hamilton Sundstrand Corporation

Inventor： Craig T. Stambaugh, Sr.

IPC: F04C2/344 ,  F04C18/344 ,  F01C21/08 ,  F04C28/28 ,  F04C14/28

CPC classification number: F04C14/28 ,  F01C21/0809 ,  F04C2/3448 ,  F04C18/3442 ,  F04C18/3448 ,  F04C28/28 ,  F04C2220/40 ,  F04C2270/86

Abstract: A vane pump includes a liner defining a cammed inner surface, a rotor rotatably disposed within the liner that has a plurality of vane slots, and a plurality of vanes slidably disposed within vane slots of the rotor and configured to extend away from the rotor and contact the cammed inner surface of the liner. The plurality of vanes include at least one sentinel vane that is configured to allow detection of wear on the sentinel vane.

公开(公告)号：US20170201146A1

公开(公告)日：2017-07-13

申请号：US15468479

申请日：2017-03-24

Applicant: TUTHILL CORPORATION

Inventor： Jacob J. Berry

IPC: H02K5/22 ,  F04C15/00 ,  H01R13/622 ,  H02K7/14 ,  H01R13/652 ,  H01R13/52 ,  F04C2/344 ,  H02K11/22

CPC classification number: H02K5/225 ,  F01C1/44 ,  F01C21/0809 ,  F04C2/344 ,  F04C2/44 ,  F04C14/04 ,  F04C14/06 ,  F04C14/28 ,  F04C15/008 ,  F04C15/06 ,  F04C28/04 ,  F04C2210/203 ,  F04C2240/40 ,  F04C2240/803 ,  H01R13/5219 ,  H01R13/622 ,  H01R13/652 ,  H02K7/14 ,  H02K11/022

Abstract: An illustrative embodiment of the present disclosure includes a pump having a rotor and a plurality of vanes. The rotor is attached to a motor that rotates it in first and second directions and is located in a cavity. The plurality of vanes are each pivotally coupled to the rotor so as the rotor rotates, the vanes selectively push fluid from an inlet port out through an outlet port. The plurality of vanes each have an end selected from the group consisting of a lobe, no lobe, and a rod located in the lobe. Each of the plurality of vanes also includes a pivot pin configured to fit in a corresponding receptacle located in the rotor so that each of the plurality of vanes is pivotable with respect to the rotor inside the cavity.

公开(公告)号：US09347344B2

公开(公告)日：2016-05-24

申请号：US14421288

申请日：2013-07-24

Applicant: Hitachi Automotive Systems, Ltd.

Inventor： Yasushi Watanabe ,  Hideaki Ohnishi

IPC: F04C14/18 ,  F04C14/22 ,  F04C14/24 ,  F04C14/28 ,  F01M11/03 ,  F04C2/344 ,  B01D35/00 ,  F04C2/36 ,  F04C13/00 ,  F04C15/06

CPC classification number: F01M11/03 ,  B01D35/005 ,  F04C2/3442 ,  F04C2/36 ,  F04C13/005 ,  F04C14/226 ,  F04C14/28 ,  F04C15/06 ,  F04C2240/811

Abstract: Provided is a variable-capacity oil pump capable of stably securing a required pump discharge volume and discharge pressure even with a clogged oil filter and/or an electromagnetic valve failed. The oil pump is provided with a first control chamber for applying a force under oil pressure from a main oil gallery in a direction for decreasing of the eccentricity of a cam ring, a second control chamber for applying a force under oil pressure from the oil gallery in cooperation with a spring force in a direction for increasing of the cam-ring eccentricity, a first branch flow path that connects the oil gallery and the first control chamber, and a second branch flow path branched from the first branch flow path and communicating with the second control chamber via the electromagnetic valve. Two oil filters are disposed in the oil gallery and the first branch flow path, respectively.

Abstract translation: 提供了一种可变容量的油泵，即使在油过滤器堵塞和/或电磁阀故障的情况下，也能够稳定地确保所需的泵排出量和排出压力。 油泵设置有第一控制室，用于在降低凸轮环的偏心的方向上从主油道施加油压的力，第二控制室用于在油压下施加来自油库的力的第二控制室 与弹簧力在凸轮环偏心度增大的方向配合，连接油槽和第一控制室的第一分支流路和从第一分支流路分支的第二分支流路，与第一分支流路连通 第二控制室通过电磁阀。 两个油过滤器分别设置在油画廊和第一分支流动路径中。