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1. 发明授权

US11421713B2 Hydraulic hybrid swing drive system for excavators 有权
公开(公告)号：US11421713B2
公开(公告)日：2022-08-23
申请号：US15925821
申请日：2018-03-20
申请人： Parker-Hannifin Corporation
发明人： Jeff Cullman , Hao Zhang , Richard D. Kimpel , Zhesheng Jiang , Raymond Collett , Bogdan Kozul
IPC分类号： F15B1/02 , E02F9/12 , E02F9/20 , E02F9/22 , F15B7/00
摘要： A swing drive system for an excavator is provided which utilizes a prime mover mechanically connected to a first hydraulic pump/motor and a second hydraulic pump/motor mechanically connected to a swing mechanism. The system includes a hydraulic circuit connecting a hydraulic fluid reservoir, a hydraulic accumulator, the first hydraulic pump/motor, and the second hydraulic pump/motor. The system is operable in one mode where the second hydraulic pump/motor acts as a pump to retard movement of the swing mechanism and pressurized hydraulic fluid from the second hydraulic pump/motor is pumped into the hydraulic accumulator. The system is operable in another mode where the pressurized fluid from the hydraulic accumulator is used to assist the prime mover in driving hydraulic consumers, including the swing drive.

2. 发明授权

US10819252B2 Adaptive hybrid wireless power generation using piezoelectric element and power beaming in hydraulic systems 有权
公开(公告)号：US10819252B2
公开(公告)日：2020-10-27
申请号：US16609541
申请日：2018-04-19
申请人： Parker-Hannifin Corporation
发明人： Jeff Cullman , Hao Zhang , James Howland , Zhesheng Jiang , Nicholas White
IPC分类号： H02N2/18 , H02J50/20 , H02J7/32 , G01D11/00
摘要： A device, system and method for harvesting electrical power from hydraulic fluid of a hydraulic system determines at least one of hydraulic fluid flow or hydraulic fluid pressure in the hydraulic system. Based on rules and the determined at least one of the hydraulic fluid flow or hydraulic fluid pressure, an expected conversion efficiency of the power conversion device and an expected rectified power to be generated from the received input power by the power conversion device are determined. From the expected rectified power a potential conversion efficiency of the power conversion device is determined, and the power conversion device is commanded to produce the expected rectified power when the potential conversion efficiency is greater than or equal to the expected conversion efficiency. When the potential conversion efficiency is less than the expected conversion efficiency, the rules are updated.

3. 发明申请

US20200067428A1 ADAPTIVE HYBRID WIRELESS POWER GENERATION USING PIEZOELECTRIC ELEMENT AND POWER BEAMING IN HYDRAULIC SYSTEMS 审中-公开
公开(公告)号：US20200067428A1
公开(公告)日：2020-02-27
申请号：US16609541
申请日：2018-04-19
申请人： Parker-Hannifin Corporation
发明人： Jeff Cullman , Hao Zhang , James Howland , Zhesheng Jiang , Nicholas White
IPC分类号： H02N2/18 , H02J7/32 , H02J50/20
摘要： A device, system and method for harvesting electrical power from hydraulic fluid of a hydraulic system determines at least one of hydraulic fluid flow or hydraulic fluid pressure in the hydraulic system. Based on rules and the determined at least one of the hydraulic fluid flow or hydraulic fluid pressure, an expected conversion efficiency of the power conversion device and an expected rectified power to be generated from the received input power by the power conversion device are determined. From the expected rectified power a potential conversion efficiency of the power conversion device is determined, and the power conversion device is commanded to produce the expected rectified power when the potential conversion efficiency is greater than or equal to the expected conversion efficiency. When the potential conversion efficiency is less than the expected conversion efficiency, the rules are updated.

4. 发明申请

US20180209449A1 HYDRAULIC HYBRID SWING DRIVE SYSTEM FOR EXCAVATORS 审中-公开
公开(公告)号：US20180209449A1
公开(公告)日：2018-07-26
申请号：US15925821
申请日：2018-03-20
申请人： Parker-Hannifin Corporation
发明人： Jeff Cullman , Hao Zhang , Richard D. Kimpel , Zhesheng Jiang , Raymond Collett , Bogdan Kozul
IPC分类号： F15B1/02 , F15B7/00 , E02F9/12 , E02F9/22 , E02F9/20
CPC分类号： F15B1/024 , E02F9/128 , E02F9/202 , E02F9/2217 , F15B7/003
摘要： A swing drive system for an excavator is provided which utilizes a prime mover mechanically connected to a first hydraulic pump/motor and a second hydraulic pump/motor mechanically connected to a swing mechanism. The system includes a hydraulic circuit connecting a hydraulic fluid reservoir, a hydraulic accumulator, the first hydraulic pump/motor, and the second hydraulic pump/motor. The system is operable in one mode where the second hydraulic pump/motor acts as a pump to retard movement of the swing mechanism and pressurized hydraulic fluid from the second hydraulic pump/motor is pumped into the hydraulic accumulator. The system is operable in another mode where the pressurized fluid from the hydraulic accumulator is used to assist the prime mover in driving hydraulic consumers, including the swing drive.

5. 发明申请

US20140373522A1 HYDRAULIC HYBRID SWING DRIVE SYSTEM FOR EXCAVATORS 有权
标题翻译：用于挖掘机的液压混合动力驱动系统
公开(公告)号：US20140373522A1
公开(公告)日：2014-12-25
申请号：US14370795
申请日：2013-01-04
申请人： Parker-Hannifin Corporation
发明人： Jeff Cullman , Hao Zhang , Richard D. Kimpel , Zhesheng Jiang , Raymond Collett , Bogdan Kozul
IPC分类号： F15B1/02
CPC分类号： F15B1/024 , E02F9/128 , E02F9/202 , E02F9/2217 , F15B7/003
摘要： A swing drive system (11) for an excavator is provided which utilizes a prime mover (20) mechanically connected to a first hydraulic pump/motor (30) and a second hydraulic pump/motor (32) mechanically connected to a swing mechanism (70). The system includes a hydraulic circuit (31) connecting a hydraulic fluid reservoir (42), a hydraulic accumulator (40), the first hydraulic pump/motor (30), and the second hydraulic pump/motor (32). The system is operable in one mode where the second hydraulic pump/motor acts as a pump to retard movement of the swing mechanism and pressurized hydraulic fluid from the second hydraulic pump/motor is pumped into the hydraulic accumulator. The system is operable in another mode where the pressurized fluid from the hydraulic accumulator is used to assist the prime mover in driving hydraulic consumers (62,64,66), including the swing mechanism.
摘要翻译：提供了一种用于挖掘机的摆动驱动系统（11），其利用机械地连接到第一液压泵/马达（30）的原动机（20）和机械连接到摆动机构（70）的第二液压泵/马达（32））。该系统包括连接液压油箱（42），液压蓄能器（40），第一液压泵/马达（30）和第二液压泵/马达（32）的液压回路（31）。该系统在一种模式中可操作，其中第二液压泵/马达用作泵以阻止回转机构的运动，并且来自第二液压泵/马达的加压液压流体被泵入液压蓄能器。该系统在另一种模式下可操作，其中来自液压蓄能器的加压流体用于辅助原动机驱动包括摆动机构的液压消耗器（62,66,66）。

6. 发明授权

US10024341B2 Hydraulic hybrid swing drive system for excavators 有权
公开(公告)号：US10024341B2
公开(公告)日：2018-07-17
申请号：US14764794
申请日：2014-01-30
申请人： Parker-Hannifin Corporation
发明人： Hao Zhang , Jeff Cullman , Raymond Collett , James Howland , Nick White , Patrick Stegemann
IPC分类号： F15B11/08 , E02F9/12 , E02F9/20 , E02F9/22 , F15B1/02 , F15B21/14
摘要： A hybrid swing drive system (1) of a hydraulic construction machine includes a variable displacement hydraulic swing pump (3) operable by a prime mover (2); a hydraulic swing motor (16) for performing a swing function of the machine; an accumulator (10); a controller (244); a swing control valve assembly (15) disposed in a first hydraulic path extending from the swing pump to the swing motor, the swing control valve assembly having a first position fluidly connecting the swing pump to a first side of the swing motor and a second position fluidly connecting the swing pump to a second side of the swing motor; and an accumulator control valve (12) having an open position fluidly connecting the accumulator to the first hydraulic path at an accumulator control valve connection point and a closed position fluidly isolating the accumulator from the first hydraulic path.

7. 发明授权

US09926946B2 Hydraulic hybrid swing drive system for excavators 有权
公开(公告)号：US09926946B2
公开(公告)日：2018-03-27
申请号：US14370795
申请日：2013-01-04
申请人： Parker-Hannifin Corporation
发明人： Jeff Cullman , Hao Zhang , Richard D. Kimpel , Zhesheng Jiang , Raymond Collett , Bogdan Kozul
IPC分类号： F15B7/00 , F15B1/02 , E02F9/12 , E02F9/20 , E02F9/22
CPC分类号： F15B1/024 , E02F9/128 , E02F9/202 , E02F9/2217 , F15B7/003
摘要： A swing drive system (11) for an excavator is provided which utilizes a prime mover (20) mechanically connected to a first hydraulic pump/motor (30) and a second hydraulic pump/motor (32) mechanically connected to a swing mechanism (70). The system includes a hydraulic circuit (31) connecting a hydraulic fluid reservoir (42), a hydraulic accumulator (40), the first hydraulic pump/motor (30), and the second hydraulic pump/motor (32). The system is operable in one mode where the second hydraulic pump/motor acts as a pump to retard movement of the swing mechanism and pressurized hydraulic fluid from the second hydraulic pump/motor is pumped into the hydraulic accumulator. The system is operable in another mode where the pressurized fluid from the hydraulic accumulator is used to assist the prime mover in driving hydraulic consumers (62,64,66), including the swing mechanism.

8. 发明申请

US20160010663A1 HYDRAULIC HYBRID SWING DRIVE SYSTEM FOR EXCAVATORS 有权
标题翻译：用于挖掘机的液压混合动力驱动系统
公开(公告)号：US20160010663A1
公开(公告)日：2016-01-14
申请号：US14764794
申请日：2014-01-30
申请人： PARKER-HANNIFIN CORPORATION
发明人： Hao Zhang , Jeff Cullman , Raymond Collett , James Howland , Nick White , Patrick Stegemann
IPC分类号： F15B11/08 , F15B1/02
CPC分类号： F15B11/08 , E02F9/128 , E02F9/2066 , E02F9/2217 , E02F9/2285 , E02F9/2289 , F15B1/024 , F15B21/14 , F15B2201/00 , F15B2211/20523 , F15B2211/20546 , F15B2211/20569 , F15B2211/20576 , F15B2211/212 , F15B2211/30575 , F15B2211/30595 , F15B2211/6309 , F15B2211/6336 , F15B2211/7058 , F15B2211/715 , F15B2211/88
摘要： A hybrid swing drive system (1) of a hydraulic construction machine includes a variable displacement hydraulic swing pump (3) operable by a prime mover (2); a hydraulic swing motor (16) for performing a swing function of the machine; an accumulator (10); a controller (244); a swing control valve assembly (15) disposed in a first hydraulic path extending from the swing pump to the swing motor, the swing control valve assembly having a first position fluidly connecting the swing pump to a first side of the swing motor and a second position fluidly connecting the swing pump to a second side of the swing motor; and an accumulator control valve (12) having an open position fluidly connecting the accumulator to the first hydraulic path at an accumulator control valve connection point and a closed position fluidly isolating the accumulator from the first hydraulic path.
摘要翻译：液压施工机械的混合摆动驱动系统（1）包括可由原动机（2）操作的可变排量液压摆动泵（3）。用于执行机器的摆动功能的液压回转马达（16）; 蓄电池（10）; 控制器（244）; 摆动控制阀组件（15），其布置在从所述回转泵延伸到所述回转马达的第一液压路径中，所述回转控制阀组件具有将所述回转泵流体连接到所述回转马达的第一侧的第一位置和第二位置将回转泵流体地连接到回转马达的第二侧; 以及蓄能器控制阀（12），其具有在累积器控制阀连接点处的蓄能器与第一液压路径流体连接的打开位置和将蓄能器与第一液压路径流体隔离的关闭位置。

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