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1. 发明公开

EP0168364A1 Hydraulic accumulator 失效
标题翻译：液压蓄能器。
公开(公告)号：EP0168364A1
公开(公告)日：1986-01-15
申请号：EP85850171.1
申请日：1985-05-15
申请人： Atlas Copco Aktiebolag
发明人： Henriksson, Stig Roland
IPC分类号： B25D9/12 , B25D9/26 , F15B1/047
CPC分类号： B25D9/26 , B25D9/12 , B25D2209/002 , F15B1/18 , F15B2201/205 , F15B2201/3151 , F15B2201/411 , F15B2201/4155
摘要： A hydraulic percussive machine, for example a jack hammer or a rock drill, has an accumulator with a flexible diaphragm (35). A lift valve (40,41,42) closes the outlet of the accumulator if the flow exceeds the normal flow substantially and it traps a volume of oil between the diaphragm and the valve when it closes.

2. 发明授权

EP0168364B1 Hydraulic accumulator 失效
标题翻译：液压蓄能器
公开(公告)号：EP0168364B1
公开(公告)日：1991-01-23
申请号：EP85850171.1
申请日：1985-05-15
申请人： Atlas Copco Aktiebolag
发明人： Henriksson, Stig Roland
IPC分类号： B25D9/12 , B25D9/26 , F15B1/047
CPC分类号： B25D9/26 , B25D9/12 , B25D2209/002 , F15B1/18 , F15B2201/205 , F15B2201/3151 , F15B2201/411 , F15B2201/4155

3. 发明授权

EP0010532B1 Hydraulically operated impact motor 失效
标题翻译：液压冲击电机
公开(公告)号：EP0010532B1
公开(公告)日：1985-01-30
申请号：EP79850095.5
申请日：1979-10-18
申请人： Atlas Copco Aktiebolag
发明人： Henriksson, Stig Roland
IPC分类号： B25D9/00
CPC分类号： B25D9/26 , B25D9/145 , Y10S173/04

4. 发明公开

EP0070044A1 Hydraulically operated impact motor 失效
标题翻译： Hydraulisches Schlagantrieb。
公开(公告)号：EP0070044A1
公开(公告)日：1983-01-19
申请号：EP82200177.2
申请日：1979-10-18
申请人： Atlas Copco Aktiebolag
发明人： Henriksson, Stig Roland
IPC分类号： B25D9/00
CPC分类号： B25D9/26 , B25D9/145 , Y10S173/04
摘要： An hydraulically operated impact motor, for example a jack hammer, has a hammer piston (12) with a single land (18). The hammer piston surfaces (19, 20) of the land (18) form two cylinder chambers (21, 22) together with the cylinder of the piston. The rear cylinder chamber (21) is constantly pressurized by the pump pressure and the front cylinder chamber (22) is periodically pressurized and drained by means of a valve (28). The valve (28) is controlled by two control passages (32, 41) that have ports (33, 34 and 47-50 respectively) into the cylinder and conveys the control pressure to valve shifting piston surfaces (30,39). The larger one (39) of the valve shifting piston surfaces (30, 39) is the end surface of a plunger (36) and an intermediate chamber (35) is formed between the plunger (36) and the valve spool (28). The intermediate chamber (35) is constantly pressurized through a passage (54). Internal leak passages (52, 55) in the valve spool makes the valve spool stable in its two positions.
摘要翻译：液压操作的冲击马达（例如千斤顶锤）具有具有单个平台（18）的锤式活塞（12）。焊盘（18）的锤子活塞表面（19,20）与活塞的气缸一起形成两个气缸室（21,22）。后缸室（21）通过泵压力恒定地加压，并且前汽缸室（22）通过阀（28）周期性地加压和排出。阀门（28）由两个分别具有端口（33,34和47-50）的控制通道（32,41）控制，并将控制压力输送到阀移动活塞表面（30,39）。阀移动活塞表面（30,39）中较大的一个（39）是柱塞（36）的端面，并且在柱塞（36）和阀芯（28）之间形成中间室（35）。中间室（35）通过通道（54）恒定地加压。阀芯中的内部泄漏通道（52,55）使得阀芯在其两个位置处稳定。

5. 发明授权

EP0070044B1 Hydraulically operated impact motor 失效
标题翻译：液压作动电机
公开(公告)号：EP0070044B1
公开(公告)日：1986-01-29
申请号：EP82200177.2
申请日：1979-10-18
申请人： Atlas Copco Aktiebolag
发明人： Henriksson, Stig Roland
IPC分类号： B25D9/00
CPC分类号： B25D9/26 , B25D9/145 , Y10S173/04

6. 发明公开

EP0133609A1 Pressure fluid operated impact motor 失效
标题翻译：压力流体操作的影响马达。
公开(公告)号：EP0133609A1
公开(公告)日：1985-02-27
申请号：EP84850229.0
申请日：1984-07-19
申请人： Atlas Copco Aktiebolag
发明人： Henriksson, Stig Roland
IPC分类号： B25D17/24 , B25D9/20
CPC分类号： B25D9/20 , B25D17/245 , B25D2209/002 , B25D2209/005
摘要： A cylinder (15) is reciprocable in the housing (11) of a hydraulic percussive tool and a piston hammer (16) is reciprocable in the cylinder. The force between the cylinder and the housing is constant during the cycle of reciprocation and as a result the housing (11) is practically not vibrating at all. The piston hammer (16) and the cylinder (15) are coupled together to move conjointly during a part of each forward stroke of the hammer piston, which ensures the timing of the reciprocation of the hammer piston 16 and the cylinder (15).

7. 发明公开

EP0010532A1 Hydraulically operated impact motor 失效
标题翻译：撞击式液压驱动。
公开(公告)号：EP0010532A1
公开(公告)日：1980-04-30
申请号：EP79850095.5
申请日：1979-10-18
申请人： Atlas Copco Aktiebolag
发明人： Henriksson, Stig Roland
IPC分类号： B25D9/00
CPC分类号： B25D9/26 , B25D9/145 , Y10S173/04
摘要： A hydraulically operated impact motor, e.g. for a jack hammer, has a hammer piston that has a piston surface (19) in a pressure chamber (21) which is constantly pressurized in order to effect the work strokes of the hammer piston, and a larger piston surface (20) in a second pressure chamber (21) which is intermittently pressurized in orderto effect the return strokes of the hammer piston. The second pressure chamber (22) is also connected to the exhaust line via a one-way valve that permits flow towards the second pressure chamber (22).

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