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公开(公告)号：US10294789B2
公开(公告)日：2019-05-21
申请号：US14483287
申请日：2014-09-11
发明人： Lukas Krittian , Martin Bergmann
摘要： A hydrostatic axial piston machine (1) with a cylinder barrel (2) having at least one piston bore (3) in which is located a power unit piston (4) supported on a cam disk (18). A control surface (5) is stationary relative to the housing and is on a control base (6), against which control surface the cylinder barrel (2) is in contact. In the control base (6) there are a kidney-shaped inlet connection (8) and a kidney-shaped outlet connection (9). The sealing web surface on the control surface 5 on the control base (6) in the vicinity of the inlet connection (8) is reduced, so that in operation as a motor, when there is a pressurization of the inlet connection (8), a reduction of the hydrostatic relief force is achieved. In operation as a motor, a residual application of the cylinder barrel (2) against the control surface (5) from a hold-down force of a hold-down spring (24) that is in an operative connection with the cylinder barrel (2) and/or pressing cylinder compression forces is preserved. In addition or alternatively, the terminal areas of the kidney-shaped inlet connection (8) of the control base (6) have a transitional contour (K) in the shape of a flattened arc in the radially outer area.
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公开(公告)号：US20150204356A1
公开(公告)日：2015-07-23
申请号：US14557491
申请日：2014-12-02
发明人： Lukas Krittian
CPC分类号： F15B1/04 , B60K6/12 , B60K2006/126 , F15B1/024 , F15B1/027 , F15B21/14 , F15B2201/31 , F15B2201/32 , F16H61/4096 , F16H2037/088 , F16H2200/2005 , Y02T10/6208
摘要： A hydrostatic drive system (1) with a hydrostatic pump (3) driven by a drive motor (2) and connected in a closed circuit with a hydrostatic motor (4). The hydrostatic motor (4) is connected with a consumer (5). The closed circuit is formed by a first hydraulic connection (6a) and a second hydraulic connection (6b). A pressure accumulator device (30) can be connected with the two hydraulic connections (6a, 6b) for the storage of energy and the output of energy. The pressure accumulator device (30) is a double piston accumulator (31) having a high-pressure-side pressure chamber (32) and a low-pressure-side pressure chamber (33). The high-pressure-side pressure chamber (32) can be connected with one of the two hydraulic connections (6a, 6b) of the closed circuit and simultaneously the low-pressure-side pressure chamber (33) can be connected with the respective other hydraulic connection (6b, 6a) of the closed circuit.
摘要翻译： 一种静液压驱动系统（1），具有由驱动马达（2）驱动并与静液压马达（4）在闭路中连接的静液压泵（3）。 静液压马达（4）与消费者（5）连接。 闭路由第一液压连接件（6a）和第二液压连接件（6b）形成。 压力蓄能器（30）可与两个液压连接（6a，6b）连接，用于储存能量和能量输出。 蓄压装置（30）是具有高压侧压力室（32）和低压侧压力室（33）的双活塞蓄能器（31）。 高压侧压力室32可以与闭路回路的两个液压连接部6a，6b中的一个连接，同时低压侧的压力室33可以与其他的压力室 液压连接（6b，6a）。
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公开(公告)号：US20140208733A1
公开(公告)日：2014-07-31
申请号：US14082358
申请日：2013-11-18
IPC分类号： F02N7/06
CPC分类号： F02N7/06 , F02N7/00 , F02N19/001 , F15B1/024 , F15B1/24
摘要： A variable displacement hydrostatic power unit (7) is connected with an internal combustion engine (2). The power unit (7) operates as a pump to deliver hydraulic fluid to at least one consumer (V) and operates as a motor as a hydraulic starter for the internal combustion engine (2). Hydraulic fluid from a hydraulic accumulator (25) is supplied to the power unit (7) operated as a motor. The power unit (7) includes a spring device (55) which, when the internal combustion engine (2) is shut off, actuates a displacement volume control device (50) into a position with the maximum displacement volume. When the power unit (7) is actuated with hydraulic fluid from the hydraulic accumulator (25), the internal combustion engine (7) is immediately started by the power unit (7) without the need for an immediately preceding adjustment of the displacement volume control device (50) of the power unit (7).
摘要翻译： 可变排量静液力动力单元（7）与内燃机（2）连接。 动力单元（7）作为泵运行，以将液压流体输送到至少一个消耗器（V），并且作为用作内燃机（2）的液压起动器的电动机操作。 来自液压蓄能器（25）的液压流体被供给到作为电动机操作的动力单元（7）。 动力单元（7）包括弹簧装置（55），当内燃机（2）被切断时，使排量体积控制装置（50）致动到具有最大排量的位置。 当动力单元（7）由液压蓄能器（25）的液压流体驱动时，内燃机（7）立即由动力单元（7）启动，而不需要进行前一位置的排量控制 设备（50）。
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公开(公告)号：US09429170B2
公开(公告)日：2016-08-30
申请号：US14082854
申请日：2013-11-18
CPC分类号： F15B1/024 , B60K6/12 , E02F9/2066 , E02F9/2217 , E02F9/2292 , F02N7/00 , F02N11/0814
摘要： A drive train (1) has an internal combustion engine (2), a traction drive (3), and working hydraulics (4) having at least one hydraulic pump (7). A connecting line (26) leads to a hydraulic accumulator (25) and is connected to a delivery line (10) of the hydraulic pump (7) that leads to the working hydraulics (4). A shutoff valve (30) is located in the connecting line (26). The shutoff valve (30) is a check valve (31) that opens automatically and as a function of the pressure to allow a flow to the hydraulic accumulator (25). A pressure relief valve (32) is operatively associated with the connecting line (26) between the shutoff valve (30) and the hydraulic accumulator (25).
摘要翻译： 传动系（1）具有内燃机（2），牵引驱动装置（3）和具有至少一个液压泵（7）的工作液压装置（4）。 连接管线（26）通向液压蓄能器（25）并连接到通向工作液压装置（4）的液压泵（7）的输送管线（10）。 截止阀（30）位于连接线（26）中。 截止阀（30）是自动打开并作为压力的函数的止回阀（31），以允许流向液压蓄能器（25）。 压力释放阀（32）与截止阀（30）和液压蓄能器（25）之间的连接管线（26）可操作地相关联。
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公开(公告)号：US20150204354A1
公开(公告)日：2015-07-23
申请号：US14557565
申请日：2014-12-02
发明人： Lukas Krittian
IPC分类号： F15B1/027 , F15B15/18 , F16H61/4096 , F15B1/02
CPC分类号： F15B1/027 , B60K6/12 , F15B1/024 , F15B15/18 , F15B2201/411 , F15B2211/214 , F16H39/10 , F16H61/4096 , F16H61/4139 , F16H61/42 , F16H61/44
摘要： A hydrostatic drive system (1) has a hydrostatic pump (3) driven by a drive motor (2) and connected in a closed circuit with a hydrostatic motor (4). The hydrostatic motor (4) drives a consumer (5) and the closed circuit is formed by a first hydraulic connection (6a) and a second hydraulic connection (6b). A hydrostatic accumulator (30) can be connected with at least one of the two hydraulic connections (6a, 6b). A hydrostatic drive unit is located in an accumulator flow path (21) between one of the two hydraulic connections (6a, 6b) and the hydrostatic accumulator (30) and an additional hydrostatic drive unit is located in a tank flow path (22) between the other of the two hydraulic connections (6a, 6b) and a tank (17). The hydrostatic drive unit and the additional hydrostatic drive unit are a hydrostatic dual-flow double drive unit (20) provided in the accumulator flow path (21) and in the tank flow path (22).
摘要翻译： 静液压驱动系统（1）具有由驱动马达（2）驱动并与静液压马达（4）在闭路中连接的静液压泵（3）。 静液压马达（4）驱动消耗器（5）并且闭合回路由第一液压连接件（6a）和第二液压连接件（6b）形成。 液压蓄能器（30）可以与两个液压连接件（6a，6b）中的至少一个连接。 静液压驱动单元位于两个液压连接件（6a，6b）中的一个和静液压蓄能器（30）之间的蓄压器流动路径（21）中，并且另外的静液压驱动单元位于罐流路（22）之间， 两个液压连接件（6a，6b）中的另一个和一个罐（17）。 静液压驱动单元和附加静液压驱动单元是设置在蓄能器流路（21）和储罐流路（22）中的静液压双流双驱动单元（20）。
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公开(公告)号：US20150165887A1
公开(公告)日：2015-06-18
申请号：US14557521
申请日：2014-12-02
发明人： Lukas Krittian
CPC分类号： B60K6/12 , B60K6/48 , B60K2006/123 , F16H61/4096 , F16H61/42
摘要： A hydrostatic drive has a hydrostatic pump (3) driven by a drive motor (2) and connected in a closed circuit with a hydrostatic motor (4). The closed circuit is formed by a first hydraulic connection (6a) and a second hydraulic connection (6b). Each of the hydraulic connections (6a, 6b) can form the high-pressure side or the low-pressure side of the closed circuit. A high pressure accumulator device (20) can be connected with the respective high-pressure side hydraulic connection (6a, 6b) and, simultaneously, the respective low-pressure side hydraulic connection (6b, 6a) can be connected with a hydraulic balancing device (30). A valve device (50) is provided for this simultaneous connection. The valve device (50) is a hydraulically controlled shuttle valve device (51) connected to the two hydraulic connections (6a, 6b), the high pressure accumulator device (20) and the hydraulic balancing device (30). The shuttle valve device (30) has a high pressure accumulator path (51a) and a hydraulic balancing path (51b), and is in communication with the two hydraulic connections (6a, 6b) of the closed circuit.
摘要翻译： 静液压驱动器具有由驱动马达（2）驱动的静液压泵（3），并与静液压马达（4）在闭路中连接。 闭路由第一液压连接件（6a）和第二液压连接件（6b）形成。 每个液压连接件（6a，6b）可以形成闭合回路的高压侧或低压侧。 高压蓄压装置（20）可以与相应的高压侧液压连接件（6a，6b）连接，同时，低压侧液压连接件（6b，6a）可与液压平衡装置 （30）。 提供一种用于这种同时连接的阀装置（50）。 阀装置（50）是连接到两个液压连接件（6a，6b），高压蓄能装置（20）和液压平衡装置（30）的液压控制的梭阀装置（51）。 梭阀装置（30）具有高压蓄能器路径（51a）和液压平衡路径（51b），并且与闭合回路的两个液压连接件（6a，6b）连通。
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7.发明申请Check Valve Device In The Suction Side of A Hydrostatic Power-Unit That Can Be Operated In The Same Direction of Rotation As A Pump And As A Motor 审中-公开在与泵和作为电动机相同方向旋转的静液力动力单元的吸入侧的止回阀装置公开(公告)号：US20140314587A1
公开(公告)日：2014-10-23
申请号：US14184807
申请日：2014-02-20
发明人： Lukas Krittian , Alfred Langen
IPC分类号： F02B73/00
CPC分类号： F02B73/00 , B60K6/12 , B60K2006/126 , B60W10/06 , B60W30/18018 , F02N7/00 , Y02T10/6208 , Y10T137/7837
摘要： A hydrostatic power-unit (7) is connected with an internal combustion engine (2). The suction side (S) of the power-unit (7), when operating as a pump, sucks hydraulic fluid from a tank (9) and delivers into a delivery side (P), and when operating as a motor is driven by hydraulic fluid from a hydraulic accumulator (20). A check valve device (30) is located in the suction side (S) to provide a pressure increase when the power-unit (7) is operated as a motor. The check valve device (30) has a check valve (32) operated by an actuator device (31). The actuator device (31) actuates the check valve (32) between a closed position (32a) in which a connection of the suction side (S) with the tank (9) is shut off, and an open position (32b) in which the connection of the suction side (S) to the tank (9) is opened.
摘要翻译： 液压动力单元（7）与内燃机（2）连接。 动力单元（7）的吸入侧（S）当作为泵操作时，从罐（9）吸入液压流体并输送到输送侧（P），并且当作为电动机操作时由液压驱动 来自液压蓄能器（20）的流体。 止回阀装置（30）位于吸入侧（S）中，以在动力单元（7）作为电动机操作时提供增压。 止回阀装置（30）具有由致动器装置（31）操作的止回阀（32）。 致动器装置（31）在其中吸入侧（S）与罐（9）的连接被切断的关闭位置（32a）和打开位置（32b）之间致动止回阀（32），在该位置 吸入侧（S）与罐（9）的连接打开。
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公开(公告)号：US10183565B2
公开(公告)日：2019-01-22
申请号：US14557521
申请日：2014-12-02
发明人： Lukas Krittian
IPC分类号： F16H61/4096 , B60K6/12 , B60K6/48 , F16H61/42
摘要： A hydrostatic drive has a hydrostatic pump (3) driven by a drive motor (2) and connected in a closed circuit with a hydrostatic motor (4). The closed circuit is formed by a first hydraulic connection (6a) and a second hydraulic connection (6b). Each of the hydraulic connections (6a, 6b) can form the high-pressure side or the low-pressure side of the closed circuit. A high pressure accumulator device (20) can be connected with the respective high-pressure side hydraulic connection (6a, 6b) and, simultaneously, the respective low-pressure side hydraulic connection (6b, 6a) can be connected with a hydraulic balancing device (30). A valve device (50) is provided for this simultaneous connection. The valve device (50) is a hydraulically controlled shuttle valve device (51) connected to the two hydraulic connections (6a, 6b), the high pressure accumulator device (20) and the hydraulic balancing device (30). The shuttle valve device (30) has a high pressure accumulator path (51a) and a hydraulic balancing path (51b), and is in communication with the two hydraulic connections (6a, 6b) of the closed circuit.
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公开(公告)号：US09562606B2
公开(公告)日：2017-02-07
申请号：US13952770
申请日：2013-07-29
发明人： Lukas Krittian
CPC分类号： F16H61/42 , F04B1/2078 , F04B1/30 , F04B1/324
摘要： A hydrostatic positive displacement machine (1) with a variable displacement volume includes a cradle (3) pivoted by a hydraulic positioning device (7) having a positioning piston device (8). A position-controlled control valve (10) generates a control pressure and includes axially displaceable and locked setting valve means (20) and the rotatable feedback valve means (21). Control cross sections are exposed by an axial displacement of the setting valve means (20) relative to the feedback valve means (21) and are closed by rotational movement of the feedback valve means (21) relative to the setting valve means (20).
摘要翻译： 具有可变排量的静液压容积式装置（1）包括由具有定位活塞装置（8）的液压定位装置（7）枢转的支架（3）。 位置控制控制阀（10）产生控制压力并且包括轴向移动和锁定的调节阀装置（20）和可旋转反馈阀装置（21）。 控制横截面通过调节阀装置（20）相对于反馈阀装置（21）的轴向位移而暴露，并且通过反馈阀装置（21）相对于调节阀装置（20）的旋转运动而关闭。
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公开(公告)号：US20160341168A1
公开(公告)日：2016-11-24
申请号：US15157757
申请日：2016-05-18
发明人： Marcus Dölger , Lukas Krittian
CPC分类号： F02N7/06 , B60K2006/126 , E02F9/2217 , E02F9/2246 , E02F9/2292 , E02F9/2296 , F02B63/06 , F02N7/00 , F02N7/08 , F02N11/0814 , F04B13/00 , F04B17/05 , F15B1/027 , F15B2211/20523 , F15B2211/20569 , F15B2211/212 , F15B2211/4053 , F15B2211/41509 , F15B2211/50518 , F15B2211/50536 , F15B2211/50563 , F15B2211/5151 , F15B2211/6651 , F15B2211/7142 , F15B2211/781 , Y02T10/48
摘要： A hydrostatic drive system of a mobile machine includes a hydraulic work system and a hydraulic work pump that is driven by an internal combustion engine and, when operated as a pump, takes in hydraulic fluid with a suction side from a tank and, with a delivery side, delivers into a delivery line that leads to the hydraulic work system. A bypass valve is provided with which, when the hydraulic work pump is operated as a motor to start the shut-off internal combustion engine, the volume flow delivered by the hydraulic work pump operated as a motor to the delivery side is diverted to the tank. The bypass valve, in the motor operation to start the shut-off internal combustion engine, is actuated into an open position that connects the delivery side of the hydraulic work pump with the tank.
摘要翻译： 移动式机器的静液压驱动系统包括液压工作系统和由内燃机驱动的液压工作泵，并且当作为泵操作时，其具有来自罐的吸力侧的液压流体，并且具有输送 将其运送到通向液压工作系统的输送管线。 提供了一种旁通阀，当液压工作泵作为电动机操作以起动关闭内燃机时，由作为电动机运行到输送侧的液压工作泵输送的体积流量被转移到罐 。 在启动关闭内燃机的电动机操作中的旁通阀被致动到连接液压工作泵的输出侧与罐的打开位置。
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