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公开(公告)号：EP1532366B1
公开(公告)日：2005-10-26
申请号：EP03794866.8
申请日：2003-08-09
CPC分类号： F04B1/141 , F04B1/126 , F04B53/164
摘要： The invention relates to a pump for a high-pressure cleaning device, comprising: at least one reciprocatingly driven piston that protrudes into a pump chamber of a pump case and into a drive chamber of the pump case; a high-pressure seal that rests against the periphery of the piston while being located in the area in which the piston enters the pump chamber; an oil seal that rests against the periphery of the piston while being located in the area in which the piston enters the drive chamber, and; a collecting chamber, which surrounds the piston between the high-pressure seal and the oil seal and which is provided for collecting liquid exiting the pump chamber while flowing past the high-pressure seal. The aim of the invention is to prevent this liquid from entering the drive chamber. To this end, the invention provides that the piston has at least one peripheral groove in the area between the high-pressure seal and the oil seal and that the high-pressure seal and the oil seal are located far enough apart so that the peripheral groove or the peripheral grooves neither reach the high-pressure seal nor the oil seal during the reciprocating motion of the piston.
摘要翻译： 用于高压清洁装置的泵技术领域本发明涉及一种用于高压清洁装置的泵，其包括：至少一个往复驱动的活塞，其突出到泵壳体的泵腔中并进入泵壳体的驱动腔室中; 高压密封件，其在位于活塞进入泵室的区域中时靠在活塞的周边上; 油封，其位于活塞进入驱动室的区域内时抵靠在活塞的周边上; 收集室，其围绕位于高压密封件和油封之间的活塞并且被设置用于在流过高压密封件时收集离开泵室的液体。 本发明的目的是防止这种液体进入驱动室。 为此，本发明规定，活塞在高压密封件和油封之间的区域中具有至少一个周边凹槽，并且高压密封件和油封位于足够远的距离处，使得周边凹槽 或者在活塞的往复运动过程中周边槽不会到达高压密封件和油封。
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公开(公告)号：EP2691673A1
公开(公告)日：2014-02-05
申请号：EP11712530.2
申请日：2011-03-30
CPC分类号： F16H55/06 , F16C17/02 , F16C33/107 , F16C33/201 , F16C2208/02 , F16C2208/66 , F16H57/08 , F16H2055/065 , F16H2057/085
摘要： The invention relates to a planet gear (10) for a planetary gear train, comprising a bearing bush (12) for connecting to a planet carrier of the planetary gear train and comprising a toothed ring (14), which surrounds the bearing bush (12) in the circumferential direction and which is made of plastic. In order to develop the planet gear in such a way that it can be produced and installed cost-effectively, the bearing bush (12) forms a plain bearing made of plastic and the toothed ring (14) is formed on the bearing bush (12) as a plastic molded part. The invention further relates to the use of such a planet gear in a planetary gear train of a cleaning device driven by a motor.
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公开(公告)号：EP2131970A1
公开(公告)日：2009-12-16
申请号：EP08735129.2
申请日：2008-04-10
IPC分类号： B08B3/02 , F04B49/035
CPC分类号： B08B3/026 , F04B49/035
摘要： The invention relates to a high-pressure cleaning device comprising a high-pressure pump, which has at least one pump chamber that is connected to a suction line and to a pressure line. The pressure line is flow connected to the suction line via a return flow line, and a pressure relief valve is disposed in the return flow line, the valve having a through-flow channel extending from a valve inlet to a first valve outlet. A valve element is movably held in the through-flow channel, the element ending in a closed position on a valve seat. At least one outlet channel branches off from the through-flow channel, the channel ending in a second valve outlet. In order to configure the high-pressure cleaning device less prone to failure, the invention provides that the valve element is enclosed by a sealing ring at a distance to at least one outlet channel in the direction opposite of the valve seat, wherein the sealing ring seals an inlet region of the through-flow channel adjacent to the valve inlet from an outlet region of the through-flow channel adjacent to the first valve outlet.
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公开(公告)号：EP1850976B1
公开(公告)日：2008-10-15
申请号：EP06706219.0
申请日：2006-01-13
发明人： WESCH, Georg , MÜLLER, Wolfgang
CPC分类号： F16H57/0421 , B08B3/026 , B08B2203/0294 , F04B1/128 , F04B1/141 , F04B1/145 , F04B17/03 , F04B53/18 , F16H57/0434 , F16H57/0482 , Y10T137/2322
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公开(公告)号：EP2244844A2
公开(公告)日：2010-11-03
申请号：EP08866868.6
申请日：2008-12-17
CPC分类号： F16H57/082 , B08B3/026 , B08B2203/0294 , F16C19/50 , F16H23/00 , F16H2057/085
摘要： The invention relates to a drive device (10) for a high-pressure cleaning unit having a motor (12), the motor shaft (14) of which is coupled to a swash plate (18) via a planetary gear set (16), wherein the planetary gear set has a sun gear (26) connected in a rotationally fixed manner to the motor shaft, which sun gear meshes with planetary gears (28, 29) which are mounted so as to be able to rotate on a planetary bearing (35) and engage with an internally toothed internal gear (31) and with their end side facing away from the planetary bearing lie against a support element (60) so as to able to slide. In order to construct the drive device in such a manner that it has an increased service life, it is proposed according to the invention that the support element takes up a wear-inhibiting bearing region for the planetary gears. Alternatively, or supplementary thereto, it is proposed that the swash plate is supported by a bearing plate (40) which dips into a receptacle (42, 74) which supports the bearing plate in an axial and radial direction.
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公开(公告)号：EP2131970B1
公开(公告)日：2011-01-19
申请号：EP08735129.2
申请日：2008-04-10
IPC分类号： B08B3/02 , F04B49/035
CPC分类号： B08B3/026 , F04B49/035
摘要： The invention relates to a high-pressure cleaning device comprising a high-pressure pump, which has at least one pump chamber that is connected to a suction line and to a pressure line. The pressure line is flow connected to the suction line via a return flow line, and a pressure relief valve is disposed in the return flow line, the valve having a through-flow channel extending from a valve inlet to a first valve outlet. A valve element is movably held in the through-flow channel, the element ending in a closed position on a valve seat. At least one outlet channel branches off from the through-flow channel, the channel ending in a second valve outlet. In order to configure the high-pressure cleaning device less prone to failure, the invention provides that the valve element is enclosed by a sealing ring at a distance to at least one outlet channel in the direction opposite of the valve seat, wherein the sealing ring seals an inlet region of the through-flow channel adjacent to the valve inlet from an outlet region of the through-flow channel adjacent to the first valve outlet.
摘要翻译： 高压清洁装置技术领域本发明涉及一种高压清洁装置，其包括高压泵，该高压泵具有至少一个连接到吸入管线和压力管线的泵室。 压力管路通过回流管路流动连接到吸入管路，并且回流管路中布置有减压阀，该减压阀具有从阀门入口延伸到第一阀门出口的通流通道。 阀元件可移动地保持在通流通道中，元件终止于阀座上的关闭位置。 至少一个出口通道从通流通道分支出来，通道终止于第二阀出口。 为了使高压清洁装置不容易发生故障，本发明提出，阀元件在与阀座相反的方向上与密封环围绕至少一个出口通道间隔开，其中密封环 将与所述阀入口相邻的所述通流通道的入口区域与所述通流通道的与所述第一阀出口相邻的出口区域密封。
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公开(公告)号：EP1850976A1
公开(公告)日：2007-11-07
申请号：EP06706219.0
申请日：2006-01-13
发明人： WESCH, Georg , MÜLLER, Wolfgang
CPC分类号： F16H57/0421 , B08B3/026 , B08B2203/0294 , F04B1/128 , F04B1/141 , F04B1/145 , F04B17/03 , F04B53/18 , F16H57/0434 , F16H57/0482 , Y10T137/2322
摘要： The invention relates to a high-pressure cleaning device with a motor pump unit, comprising a pump head on which a piston assembly is placed. Said piston assembly, with the intermediate of a planetary gear, carries a drive motor and comprises a plurality of pistons that can be reciprocated in the longitudinal direction of the motor pump unit. Said pistons dip individually into a pump chamber of the pump head and a swash plate unit interacts with the pistons. The planetary gear has a sun gear which is connected to the motor shaft of the drive motor in a rotationally fixed manner and is coupled to a hollow gear via planet wheels that are rotationally received by a planet carrier. The planet carrier is connected to the swash plate unit in a rotationally fixed manner. The aim of the invention is to provide a high-pressure cleaning device in which the planetary gear is easy to lubricate even with the motor pump unit being arranged in a substantially vertical position. For this purpose, the piston aggregate is provided with an oil sump into which an oil-transfer pipe that is coaxial to the motor pump dips and which is connected to the planet carrier in a rotationally fixed manner, whereby oil from the oil sump can be fed to the planet gear via the oil-transfer pipe.
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公开(公告)号：EP1532366A1
公开(公告)日：2005-05-25
申请号：EP03794866.8
申请日：2003-08-09
CPC分类号： F04B1/141 , F04B1/126 , F04B53/164
摘要： The invention relates to a pump for a high-pressure cleaning device, comprising: at least one reciprocatingly driven piston that protrudes into a pump chamber of a pump case and into a drive chamber of the pump case; a high-pressure seal that rests against the periphery of the piston while being located in the area in which the piston enters the pump chamber; an oil seal that rests against the periphery of the piston while being located in the area in which the piston enters the drive chamber, and; a collecting chamber, which surrounds the piston between the high-pressure seal and the oil seal and which is provided for collecting liquid exiting the pump chamber while flowing past the high-pressure seal. The aim of the invention is to prevent this liquid from entering the drive chamber. To this end, the invention provides that the piston has at least one peripheral groove in the area between the high-pressure seal and the oil seal and that the high-pressure seal and the oil seal are located far enough apart so that the peripheral groove or the peripheral grooves neither reach the high-pressure seal nor the oil seal during the reciprocating motion of the piston.
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