| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 1 | 限制力载荷的系统 | CN200580017871.3 | 2005-06-06 | CN101014787A | 2007-08-08 | 莫滕·B·冈尼拉德 |
| 一种系统，其确保作用在变速机构(3)上的合力不会超过预定值。从变速杆(16)传递到变速机构的力接收到来自协助系统的助力，其中该系统的特征在于，当换档力等于或者大于(第二)极限值时，由协助系统提供的助力的值保持作用在变速机构上的合力恒定或者减小作用在变速机构上的合力。 | ||||||
| 2 | 液压系统 | CN200810191085.0 | 2008-12-19 | CN101509510A | 2009-08-19 | E·克雷默; M·格雷特尔 |
| 本发明涉及一种液压系统，尤其是用于机动车，该液压系统具有一个主动缸和一个从动缸，该主动缸和该从动缸通过一个液压段彼此相连接，在该液压段中这样设置有一个泵和一个伺服阀装置，使得施加在该主动缸上的操作力对该从动缸的作用增强。本发明的特征在于：在该液压段中这样设置有一个具有输入端和输出端的附加泵流和一个转换阀装置，使得施加在该主动缸上的操作力对该从动缸的作用与要求相关地附加地增强。 | ||||||
| 3 | 液压系统 | CN200810191085.0 | 2008-12-19 | CN101509510B | 2013-07-31 | E·克雷默; M·格雷特尔 |
| 本发明涉及一种液压系统，尤其是用于机动车，该液压系统具有一个主动缸和一个从动缸，该主动缸和该从动缸通过一个液压段彼此相连接，在该液压段中这样设置有一个泵和一个伺服阀装置，使得施加在该主动缸上的操作力对该从动缸的作用增强。本发明的特征在于：在该液压段中这样设置有一个具有输入端和输出端的附加泵流和一个转换阀装置，使得施加在该主动缸上的操作力对该从动缸的作用与要求相关地附加地增强。 | ||||||
| 4 | 限制力载荷的系统 | CN200580017871.3 | 2005-06-06 | CN100552269C | 2009-10-21 | 莫滕·B·冈尼拉德 |
| 一种系统，其确保作用在变速机构(3)上的合力不会超过预定值。从变速杆(16)传递到变速机构的力接收到来自协助系统的助力，其中该系统的特征在于，当换档力等于或者大于(第二)极限值时，由协助系统提供的助力的值保持作用在变速机构上的合力恒定或者减小作用在变速机构上的合力。 | ||||||
| 5 | 一种多级调速千斤顶 | CN01141931.8 | 2001-09-24 | CN1328147C | 2007-07-25 | 范群 |
| 本发明涉及一种多级调速千斤顶。本发明的多级调速千斤顶包括输入油缸和输出油缸，于输入油缸和输出油缸之间串联具有至少三种速级的液压调速线路，该液压调速线路至少由两条相互并联的液压支路构成，该液压调速线路由输出油缸的负载压力作为控制信号，控制其不同速级的液压支路或液压支路组合的启闭。本发明的多级调速千斤顶，可在不同载荷情况下，自动调换不同级的提升速度，从而提高千斤顶的顶举效率。 | ||||||
| 6 | 可自动调节提升速度的液压顶举装置 | CN99119355.5 | 1999-09-10 | CN1202000C | 2005-05-18 | 洪茂雄 |
| 本发明公开了一种可自动调节提升速度的液压顶举装置，主要是在液压缸和液压泵的无杆腔及有杆腔之间增设油路、单向阀或可调式溢流阀，令该液压顶举装置在不同载荷的情况下，可使所述的液压缸或液压泵在活塞式及柱塞式等两种不同驱动形态之间进行相互转换组合，可针对不同载荷的变化而自动调节其提升速度，使轻载时快速作功，重载时慢速省力，故可在最大限度内提高其工作效率。 | ||||||
| 7 | 一种千斤顶的多级调速方法及多级调速千斤顶 | CN01141931.8 | 2001-09-24 | CN1408635A | 2003-04-09 | 范群 |
| 本发明涉及一种千斤顶的多级调速方法及多级调速千斤顶。本发明提供的方法，是在输入油缸和输出油缸之间串联有液压调速线路，该液压调速线路至少包括两条相互并联的液压支路，并以输出油缸顶举负载的压力作为控制信号，控制液压调速线路中不同速级的液压支路或液压支路组合的启闭。利用本发明的方法，可使千斤顶在不同载荷情况下，自动调换不同级的提升速度，提高顶举效率。本发明还提供一种多级调速千斤顶，于输入油缸和输出油缸之间串联具有至少三种速级的液压调速线路，该液压调速线路至少由两条相互并联的液压支路构成。本发明的多级调速千斤顶，可在不同载荷情况下，自动调换不同级的提升速度，从而提高千斤顶的顶举效率。 | ||||||
| 8 | 可自动调节提升速度的液压顶举装置 | CN99119355.5 | 1999-09-10 | CN1287965A | 2001-03-21 | 洪茂雄 |
| 本发明公开了一种可自动调节提升速度的液压顶举装置,主要是在液压缸和液压泵的无杆腔及有杆腔之间增设油路、单向阀或可调式溢流阀,令该液压顶举装置在不同载荷的情况下,可使所述的液压缸或液压泵在活塞式及柱塞式等两种不同驱动形态之间进行相互转换组合,可针对不同载荷的变化而自动调节其提升速度,使轻载时快速作功,重载时慢速省力,故可在最大限度内提高其工作效率。 | ||||||
| 9 | System to limit the power load | JP2007514963 | 2005-06-06 | JP2008501904A | 2008-01-24 | モーテン ベルゲル グンネルド |
| A system for ensuring that the total force acting on the gear shifting mechanism (3) does not exceed a predetermined value. The force transferred from the gear lever (16) to the gear shifting mechanism receives power assistance from an assistance system, wherein the system is characterised in that the power assistance from the assistance system has a value that holds the total force acting on the gear shifting mechanism constant or reduces the total force acting on the gear shifting mechanism, when the gear shifting force is equal to or greater than a (second) limit value. | ||||||
| 10 | Oil circuit for a jack | EP99307956.5 | 1999-10-08 | EP1090876A1 | 2001-04-11 | Hung, Michael |
An oil circuit of a jack for rising an object to a preset position rapidly, wherein the oil inlet circuit of a hydraulic loop system is improved. An oil channel (31) is installed between the inner oil chamber (41) of the piston rod (4) and the sequential valve (B). A check valve (A2) is installed between the oil channel (31) and the sequential valve (B). An oil channel (311) is installed between the sequential valve (B) and the check valve (A2) for being connected to the inner oil chamber (41) of the piston rod (4). When in the working conditions of dump load or light load, the sequential valve is closed, thus, the hydraulic oil may enter into the inner oil chamber (41) of the piston rod (4) from the pumping oil chamber (3) through the check valve (A2) so that the piston rod (4) will rise rapidly to a still condition. In the still condition, since the check valve (A2) closes the oil channel (31), the sequential valve (B) will open automatically so that the inner oil chamber (41) of the piston rod (4) is communicated to the inner oil reservoir (1). Thus the inner and outer oil pressures of the oil guiding tube (50) in the piston rod (4) are equal. Thus, no strong still load hydraulic pressure exists in the oil guiding tube (50) within the inner oil chamber (41) of the piston rod (4). By this changing, the still load hydraulic pressure of the inner oil reservoir (1) and the inner oil chamber (41) of the piston rod (4) can be adjusted equilibrium by the sequential valve (B). Therefore, the problem of breakage of the oil guiding tube (50) of the piston rod (4) and the high cost due to confinement in material are solved. Moreover, the sequential valve (B) can be located outsides so that the sequential valve (B) is adjustable at outside to a preset actuating pressure. |
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| 11 | Hydraulic tool having mechanical actuator with internal bypass valve | EP02447111.2 | 2002-06-05 | EP1270959A3 | 2008-09-17 | Lefavour, John D.; Montminy, Armand T. |
A hydraulic compression tool 2 having a frame 13, a hydraulic fluid reservoir 8 on the frame, a ram 16 movably connected to the frame, a conduit system in the frame between the reservoir 8 and the ram 16, a pump 24 provided in the conduit system, a mechanical actuator 66 provided in the conduit system for contacting the ram 16, and a bypass valve 72 in the conduit system between a rear end 96, 100 of the ram 16 and a channel 46 of the conduit system to the rear end of the mechanical actuator 66. The conduit system is adapted to conduit fluid from the pump 24 against both the rear end 96, 100 of the ram 16 and a rear end 74 of the mechanical actuator 66. The bypass valve 72 is located, at least partially, in a housing member 70 of the mechanical actuator 66.
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| 12 | Oil circuit for a jack | EP99307956.5 | 1999-10-08 | EP1090876B1 | 2004-07-21 | Hung, Michael |
| 13 | Hydraulik-Ratschenschrauber mit einem doppeltwirkenden Hydraulik-Zylinder-Kolben-Antrieb | EP02020916.9 | 2002-09-19 | EP1400313A1 | 2004-03-24 | Kipfelsberger, Alexander |
Die Erfindung betrifft einen Hydraulik-Ratschenschrauber mit einem doppeltwirkenden Hydraulik-Zylinder-Kolben-Antrieb mit einer Zahnradpumpe (20) und einer Kolbenpumpe (21). Erfindungsgemäß wird ein Arbeitshub und ein Rückhub über eine Drehrichtungsumkehr eines Pumpenmotors (4) gesteuert, wobei sich die erforderlichen Volumenströme selbsttätig über die eingesetzten Ventile ohne zusätzliche Ventilansteuerungen einstellen. |
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| 14 | A hydraulic circuit system for actuating a hydraulic jack | EP96308121.1 | 1996-11-08 | EP0841299B1 | 2000-05-10 | Hung, Michael |
| 15 | Hydraulic ratchet wrench with double-action hydraulic cylinder piston drive | US10666943 | 2003-09-19 | US06966240B2 | 2005-11-22 | Alexander Kipfelsberger |
| The invention relates to a hydraulic ratchet wrench with a double-action hydraulic cylinder piston drive with a gear pump (20) and a piston pump (21). According to the invention, a working stroke and a return stroke are controlled through a reversal of rotational direction of a pump motor (4), whereby the necessary flow volume is produced automatically via internal flow control valves, and without additional valve controls. | ||||||
| 16 | Multilevel speed regulation jack | US10755852 | 2004-01-12 | US20040226293A1 | 2004-11-18 | Qun Fan |
| A multilevel speed regulation jack includes an input oil cylinder, an output oil cylinder, and a fluid conduit member between the cylinders. The output oil cylinder includes a cylinder body containing an annular space and a tube piston, which fits in the annular space. A sliding sleeve of the tube piston is movably positioned in the annular space. An annular in-flow oil chamber is formed between the end annular surface of the tube piston and the cylinder body, and a central in-flow oil chamber is formed between the inner central surface of the piston and the cylinder body. The fluid conduit member includes at least two parallel fluid channels connected to the central in-flow oil chamber and the annular in-flow oil chamber, respectively. A control valve in one of the fluid channels opens/closes the channel. The jack can automatically switch between different jacking speeds based on the load sensed by the system and therefore has a high jacking efficiency. | ||||||
| 17 | Drive device for a movable part, especially a mold closure device for an injection molding machine, and method for operating such a drive device | US10152311 | 2002-05-20 | US20030029325A1 | 2003-02-13 | Jorg Dantlgraber |
| The invention is based on a drive device for a movable part, especially a mold closure device for an injection molding machine. A conventional mold closure device possesses a hydraulic cylinder-and-piston unit having a first hydraulic piston, which borders with a first active surface on a first pressure chamber and with a second active surface, which is smaller than the first active surface and faces in the opposite direction thereto, on a second pressure chamber, and comprises a further hydraulic piston, which is fixedly connected to the first hydraulic piston, and possesses a third active surface, which borders on a third pressure chamber and is active in the same direction as the second active surface. Via a valve arrangement, the second pressure chamber can be connected to the first pressure chamber and can be relieved of pressure separately from the first pressure chamber. In the conventional mold closure device, the cylinder-and-piston unit for closing and opening the mold is operated in open hydraulic circuits, the pressure chambers being connected to a tank at the end of the closure operation and at the end of the opening operation and the movable part evidently being braked only by friction. It is an object of the invention further to develop a drive device of the conventional type so that it can be operated at higher dynamics. This is achieved in that a second hydraulic cylinder-and-piston unit is present, having a second hydraulic piston which is movable relative to the cylinder by a drive motor, especially an electric drive motor, and borders with a fourth active surface on a fourth pressure chamber, which is permanently connected to the third pressure chamber, and with a fifth active surface, which faces in the opposite direction to the fourth active surface, borders on a fifth pressure chamber, which can be connected to the first pressure chamber, and wherein the dimensional relationship between the fifth active surface and the difference between the first active surface and the second active surface is equal to the dimensional relationship between the fourth active surface and the third active surface. In a drive device according to the invention, a pressure which brakes the movable part builds up in the first pressure chamber and in the second pressure chamber or third pressure chamber when the second hydraulic piston is no longer moving, without a valve having to be actuated for that purpose. | ||||||
| 18 | Oil circuit of a jack for rising object to preset position rapidly | US09414562 | 1999-10-08 | US06199379B1 | 2001-03-13 | Michael Hung |
| An oil circuit of a jack for rising an object to a preset position rapidly, wherein the oil inlet circuit of a hydraulic loop system is improved. An oil channel is installed between the inner oil chamber of the piston rod and the sequential valve. A check valve is installed between the oil channel and the sequential valve. An oil channel is installed between the sequential valve and the check valve for being connected to the inner oil chamber of the piston rod. By changing the positions of the check valve and the oil channel. When in the working conditions of dump load or light load, the sequential valve is closed, thus, the hydraulic oil may enter into the inner oil chamber of the piston rod from the pumping oil chamber through the check valve so that the piston rod will rise rapidly to a still condition. In the still condition, since the check valve closes the oil channel, the sequential valve will open automatically so that the inner oil chamber of the piston rod is communicated to the inner oil reservoir. Thus the inner and outer oil pressures of the oil guiding tube in the piston rod are equal. Thus, no strong still load hydraulic pressure exists in the oil guiding tube within the inner oil chamber of the piston rod. BY this changing, the still load hydraulic pressure of the inner oil reservoir and the inner oil chamber of the piston rod can be adjusted equilibrium by the sequential valve. Therefore, the problem of breakage of the oil guiding tube of the piston rod and the high cost due to confinement in material are solved. Moreover, the sequential valve can be located outsides so that the sequential valve is adjustable at outside to a preset actuating pressure. | ||||||
| 19 | Intensifying cylinder of a brake apparatus | US3686865D | 1971-03-04 | US3686865A | 1972-08-29 | MOCHIZUKI TOYOJU; WATANABE MAMORU |
| An intensifying chamber is formed in an intensifying cylinder in front of an intensifying piston mechanically driven by a servo motor, and a first hydraulic chamber is formed at the rear of the intensifying piston and is connected to a reservoir of a master brake cylinder. A second hydraulic chamber is formed in said intensifying piston. During forward stroke of the intensifying piston, the volume of the intensifying chamber decreases and transmits hydraulic pressure to a wheel brake while increase in volume change takes place in the first hydraulic chamber to cause inflow of working liquid from the reservoir. The second liquid chamber undergoes no volume change during both forward and rearward strokes of the intensifying piston and is always in communication with the master cylinder. When hydraulic pressure in the second hydraulic chamber reaches a predetermined level, hydraulic pressure in the second hydraulic chamber is transmitted to the first hydraulic chamber.
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| 20 | Hydraulic pressure boosters | US34326464 | 1964-02-07 | US3173264A | 1965-03-16 | HAZELTINE JOHN L |
