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公开(公告)号:US11261876B2
公开(公告)日:2022-03-01
申请号:US15481581
申请日:2017-04-07
IPC分类号: F04D29/32 , F04D29/70 , F16H61/4165
摘要: A cooling fan or use with a hydraulic pump having an input shaft in a hydrostatic transmission includes a rotatable hub having a central body portion and an axially extending peripheral surface and a plurality of blades that extend radially outward from the peripheral surface. The cooling fan also includes an attachment aperture defined by the central body portion and an integral flange that axially extends from the central body portion. The integral flange defines a guard space having an area that is less than an area defined by the peripheral surface.
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公开(公告)号:US11156237B2
公开(公告)日:2021-10-26
申请号:US16184195
申请日:2018-11-08
IPC分类号: F16H61/4096 , F15B11/08 , F15B1/02 , B62D5/30 , B60T13/14 , F16H61/4157 , F16H61/4165
摘要: A system and method configured to direct the braking energy from a high-pressure port at the motor side of a hydraulic circuit to emergency steering, braking, accumulator(s) charging, and/or various work functions. The system and method are also configured to return hydraulic fluid back to the same high-pressure port when the motor is running as a pump.
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公开(公告)号:US09964130B2
公开(公告)日:2018-05-08
申请号:US14639377
申请日:2015-03-05
申请人: BOMAG GmbH
发明人: Moritz Nick , Hermann Christ
IPC分类号: F16H61/4165 , F15B21/04 , F15B11/08 , E01C19/48 , F16H61/4139
CPC分类号: F15B21/042 , E01C19/48 , F15B11/08 , F15B21/041 , F15B2211/20523 , F15B2211/20546 , F15B2211/6309 , F16H61/4139 , F16H61/4165
摘要: The present invention relates to a method for operating a hydraulic system of a self-propelled road paver, in particular, for the supply of hydraulic oil as needed to a closed hydraulic circuit of the road paver, a hydraulic system of a road paver for performing the method and a road paver having such a hydraulic system. The extraction and/or return of the quantity of hydraulic oil occur depending on at least one operating parameter of the road paver.
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公开(公告)号:US09086143B2
公开(公告)日:2015-07-21
申请号:US12953011
申请日:2010-11-23
IPC分类号: F16H61/4165 , F16H61/4035 , F16H61/4148 , F16H61/433
CPC分类号: F16H61/4165 , F16H61/4035 , F16H61/4148 , F16H61/433
摘要: A hydraulic fan circuit is disclosed. The hydraulic fan circuit may have a primary pump, a motor, a fan connected to and driven by the motor, and a flywheel connected to and driven by one of the motor and the fan. The hydraulic fan circuit may also have a supply passage extending from the primary pump to the motor, a return passage extending from the motor to the primary pump, and a diverter valve configured to selectively connect the supply passage to a low-pressure sump.
摘要翻译: 公开了一种液压风扇电路。 液压风扇回路可以具有连接到马达和由马达驱动的主泵,马达,风扇,以及连接到马达和风扇之一并由其驱动的飞轮。 液压风扇回路还可以具有从初级泵延伸到马达的供给通道,从马达延伸到主泵的返回通道,以及配置成将供给通道选择性地连接到低压油槽的分流阀。
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公开(公告)号:US3901032A
公开(公告)日:1975-08-26
申请号:US46574374
申请日:1974-05-01
申请人: SULZER AG
发明人: STEIGER ANTON , RUTZ PETER
IPC分类号: F04B49/12 , F16H61/40 , F16H61/4061 , F16H61/4165 , F16H61/42 , F16H61/46 , F16H39/46 , F15B15/18
CPC分类号: F16H61/4165 , F04B49/128 , F16H61/4061 , F16H61/437
摘要: The transmission uses a pump which delivers in only one direction and the pump delivery line contains a reversing means such as a changeover valve for changing over the connections of the hydrostatic motor. A cooler and a filter can be used in the pump suction line due to the lower pressures obtained. The changeover valve is operated by an adjusting means via an adjustable lever.
摘要翻译: 传动装置使用仅在一个方向传送的泵,并且泵输送管线包含用于改变静液压马达的连接的转换阀的换向装置。 由于获得的压力较低,可以在泵吸入管路中使用冷却器和过滤器。 切换阀由调节装置通过可调节杆操作。
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公开(公告)号:US3866421A
公开(公告)日:1975-02-18
申请号:US39710073
申请日:1973-09-13
申请人: BOSCH GMBH ROBERT
发明人: KERSTEN GUNTER , FRICKE HANS-JURGEN , VEIL KARL
IPC分类号: F16H61/40 , F16H61/4104 , F16H61/4139 , F16H61/4165 , F16B21/04
CPC分类号: F16H61/4104 , F16H61/4139 , F16H61/4165 , Y10S60/912
摘要: The high pressure conduit and the low pressure conduit of a hydrostatic transmission are connected by a flushing control valve provided with a discharge outlet into a low pressure area, and by a pressure limiting valve which permits at increased pressure in the high pressure conduit, fluid to flow therethrough so that the fluid flowing ouf of the pressure limiting valve is divided into a first flow part which is discharged by the control valve, and a second flow part entering the low pressure conduit at a point spaced from the point at which a priming pump discharges into the low pressure conduit. In this manner, only part of the hot fluid flows into the pump of the hydrostatic transmission while an other part of the fluid is discharged into a discharge area, and displaced in the low pressure conduit means by cool fluid from the priming pump.
摘要翻译: 静压传动装置的高压导管和低压导管通过设置有排出口的冲洗控制阀连接到低压区域,并通过压力限制阀连接,压力限制阀允许在高压管道中增加压力,流体到 流过其中,使得限流阀的流体流动被分成由控制阀排出的第一流动部分,以及第二流动部分在与起动泵的位置间隔开的点处进入低压管道 排入低压管道。 以这种方式,只有部分热流体流入静液压变速器的泵,同时流体的另一部分被排放到排放区域中,并且通过来自起动泵的冷却流体在低压管道装置中移位。
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公开(公告)号:US3396536A
公开(公告)日:1968-08-13
申请号:US58112666
申请日:1966-08-08
申请人: CESSNA AIRCRAFT CO
IPC分类号: F04B1/20 , F04B1/32 , F04B23/10 , F16H39/00 , F16H61/40 , F16H61/4139 , F16H61/4165
CPC分类号: F16H61/4165 , F04B1/2064 , F04B1/324 , F04B23/106 , F16H39/00 , F16H61/4139 , F16H61/433 , Y10S60/912
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公开(公告)号:US20210062915A1
公开(公告)日:2021-03-04
申请号:US17000559
申请日:2020-08-24
IPC分类号: F16H61/4165 , F16H57/01 , F16H57/04 , F16H59/72
摘要: A control device for an automatic transmission is provided, which includes a friction engagement element, and a processor configured to execute gear change control logic configured to control a gear change operation by supplying and discharging hydraulic fluid for forming a gear stage to/from the friction engagement element, and lubricant supply control logic configured to control to switching operation of a supply amount of lubricant to the friction engagement element according to an operating state of a vehicle. The processor controls the gear change operation and the switching operation to not overlap with one another.
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公开(公告)号:US20190383389A1
公开(公告)日:2019-12-19
申请号:US16429866
申请日:2019-06-03
申请人: LS MTRON LTD.
发明人: Jai Yoon SHIN , Jong Rak CHOI
IPC分类号: F16H61/4165
摘要: The present invention relates to an oil cooling apparatus for hydrostatic transmissions that includes a cooling main body coupled to a transmission case; an accommodating groove formed in the cooling main body to accommodate oil; a cover unit coupled to the cooling main body to cover the accommodating groove; a supply port configured to supply the oil to the accommodating groove; a discharge port configured to discharge the oil from the accommodating groove; a separating unit coupled to the cooling main body and configured to separate a flow path formed in the accommodating groove into a supply flow path connected to the supply port and a discharge flow path connected to the discharge port; and a hurdle unit coupled to each of an outer wall of the cooling main body and the separating unit, wherein the hurdle units may be formed to protrude from a bottom surface of the cooling main body so that an area of a flow region through which the oil passes is decreased.
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公开(公告)号:US10167882B2
公开(公告)日:2019-01-01
申请号:US15051858
申请日:2016-02-24
发明人: Arne Streblau
IPC分类号: F16H61/4104 , F15B21/04 , F15B7/00 , F15B13/02 , F15B21/00 , F16H61/4165
摘要: A valve housing includes a cylindrical valve bore with a high pressure inlet, a low pressure inlet and a discharge outlet. A first flushing valve spool is arranged elastically pre-stressed within the valve bore for enabling a fluid connection between the low pressure inlet and the discharge outlet. A shuttle valve spool is arranged elastically pre-stressed within the valve bore for enabling the fluid connection between the low pressure inlet and the discharge outlet. The first flushing valve spool is moveable into an open position if the fluid pressure at the low pressure inlet exceeds a first threshold value, and the shuttle valve spool is moveable into an open position for connecting the low pressure inlet with the discharge outlet, if the pressure difference between the high pressure inlet and the low pressure inlet exceeds a second threshold value.
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