专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US3687579A Rotary pumps 失效
标题翻译：旋转泵
公开(公告)号：US3687579A
公开(公告)日：1972-08-29
申请号：US3687579D
申请日：1970-07-17
申请人： HOBOURN EATON MFG CO LTD
发明人： MARTIN KENNETH C , BAXTER MICHAEL D , HOLMES JOHN F
IPC分类号： F04C14/22 , F01C21/16 , F03C3/00 , F04C15/04
CPC分类号： F04C14/223
摘要： A constant delivery rotary pump includes a rotor which rotates in a pumping chamber formed in an inner member and which carries round with it a set of pumping elements engaging the wall of the chamber and moving radially with respect to the rotor to perform a pumping action. The inner member is mounted in an outer member for sliding movement parallel to the line of action of the resultant of the fluid pressure acting in the pumping chamber. The outer member is fixed with respect to the axis of rotation of the rotor. A spring resists movement of the inner member relative to the outer member due to said resultant, and damped control means is provided for controlling in dependence on the pump delivery pressure the position of the inner member in its sliding movement. The control means includes a pair of wedge elements which are mounted side by side on their bases in the outer member and each of which has an apex in engagement with an inclined cam surface on the exterior of the inner member. The spring causes the inner member to rotate the wedge elements on to their bases, whilst the pump delivery pressure is applied between the elements and tends to rotate them about the outer side edges of their bases thereby moving the inner member against the spring force to control the pump delivery pressure.
摘要翻译：恒定输送旋转泵包括转子，其在形成在内部构件中的泵送室中旋转，并且与其一起携带一组泵送元件，其接合室的壁并相对于转子径向移动以执行泵送动作。内部构件安装在外部构件中，用于平行于作用在泵送室中的流体压力的作用线的滑动运动。外部构件相对于转子的旋转轴线固定。由于所述结果，弹簧抵抗内部构件相对于外部构件的运动，并且设置阻尼控制装置以根据泵输送压力来控制内部构件在其滑动运动中的位置。控制装置包括一对楔形元件，它们在其基部上并排安装在外部构件中，并且每个楔形元件具有与内部构件的外部上的倾斜凸轮表面接合的顶点。弹簧使内部构件将楔形元件旋转到它们的底座上，同时泵的输送压力被施加在元件之间并且趋向于使它们围绕其底座的外侧边缘旋转，从而抵抗弹簧力移动内部构件以控制泵的输送压力。

2. 发明授权

US3611877A Motors 失效
标题翻译：电机
公开(公告)号：US3611877A
公开(公告)日：1971-10-12
申请号：US3611877D
申请日：1970-01-06
申请人： HOBOURN EATON MFG CO
发明人： BAXER MICHAEL DAVID
IPC分类号： B62D5/22 , F15B9/10 , F15B15/17
CPC分类号： B62D5/22 , F15B9/10
摘要： A servomotor primarily for rack and pinion power steering comprises a piston rod extending through the end members of a cylinder and carrying a piston assembly within the cylinder. An operating shaft encircling the piston rod extends through one end member and has at its end adjacent the piston assembly a valve member which cooperates with the piston assembly to control the motor. A spring urges the piston assembly and the valve member axially into a central portion of the valve but permits relative displacement of the piston assembly and valve member axially relative to each other. The valve member is arranged to control a supply of pressure fluid, in response to movement of the operating shaft to move the valve member in one direction or the other from said central position relative to the piston, to move the piston in the same direction as the initiating movement of the valve member relative to the piston.

3. 发明授权

US3687006A Attachment for cutting rack gear teeth of variable pitch 失效
标题翻译：切割齿轮齿轮变速箱的附件
公开(公告)号：US3687006A
公开(公告)日：1972-08-29
申请号：US3687006D
申请日：1970-06-19
申请人： HOBOURN EATON MFG CO LTD
发明人： BAXTER MICHAEL DAVID
IPC分类号： B23F5/20 , B23F1/06 , B23F23/00
CPC分类号： B23F5/20 , Y10T409/100318 , Y10T409/105247 , Y10T409/106042 , Y10T409/107473
摘要： The specification describes an attachment for a rack cutting machine having a reciprocating rotary cutter for cutting the rack teeth, a holder for a workpiece on which the rack teeth are to be cut, and feed means for moving the cutter and the holder relative to each other in a direction lengthwise of the workpiece at a speed which bears a constant ratio to the speed of rotation of the cutter, which attachment comprises means for superimposing on this relative movement a secondary movement in said direction to displace the cutter and the holder from their relative positions determined by the feed means by a distance which varies in dependence on the instantaneous relative positions of the holder and workpiece in said direction. Instead of being in the form of an attachment, the components may be built into a rack cutting machine.
摘要翻译：本说明书描述了一种用于具有用于切割齿条齿的往复式旋转切割器的齿条切割机的附件，用于切割齿条齿的工件的保持器以及用于相对于彼此移动刀具和保持器的进给装置在与刀具的旋转速度恒定的速度下的工件的纵向方向上，该连接件包括用于在该相对运动中叠加的装置，用于沿所述方向重新移动刀具和保持器从其相对位置由进给装置确定的位置取决于保持器和工件在所述方向上的瞬时相对位置而变化的距离。不是以附件的形式，这些部件可以内置在齿条切割机中。

4. 发明授权

US3691905A Fluid motors 失效
标题翻译：流体马达
公开(公告)号：US3691905A
公开(公告)日：1972-09-19
申请号：US3691905D
申请日：1970-07-24
申请人： HOBOURN EATON MFG CO LTD
发明人： BAXTER MICHAEL DAVID
IPC分类号： B62D5/12 , F15B9/10 , F01B15/00
CPC分类号： B62D5/12 , F15B9/10
摘要： A fluid motor arrangement comprises a double-acting piston element which is slidably mounted in a cylinder element and the two axial sides of which have unequal effective areas, and a valve for controlling the admission of pressure fluid to the cylinder at opposite sides of the piston. The valve comprises a valve body member in which a spool valve member is slidably mounted. The valve body provides therein two chambers the pressures in which respectively act upon axially oppositely facing surfaces of the spool valve member, the ratio of the effective areas of said surfaces to each other being the same as that of the effective areas of the two sides of the piston. The (first) chamber having the larger of the two effective areas of the spool valve member is in permanently open communication with the cylinder at that side of the piston having the larger effective area, and the (second) chamber having the smaller of the two effective areas of the spool valve member is in permanently open communication with the cylinder at that side of the piston having the smaller effective area. The construction and arrangement is such that when the valve is operated in either sense from an initial position to actuate a movement of the fluid motor, the resulting variation in the pressures applied in said first and second chambers of the valve tends to return the valve to its initial position.
摘要翻译：流体马达装置包括双作用活塞元件，该双作用活塞元件可滑动地安装在气缸元件中，其两个轴向侧具有不同的有效区域;以及阀，用于控制压力流体在活塞的相对侧处进入气缸的阀。阀包括阀体构件，滑阀构件可滑动地安装在阀体构件中。阀体在其中向其中提供分别作用在滑阀构件的轴向相对面的表面上的压力的两个腔室，所述表面的有效面积彼此的比值与两侧的有效面积的比率相同活塞。具有滑阀构件的两个有效区域中的较大者的（第一）腔室与具有较大有效面积的活塞的该侧面处的气缸永久地开放连通，并且（第二）腔室具有较小的两个滑阀构件的有效区域与具有较小有效面积的活塞的该侧处的气缸永久地开放连通。结构和布置使得当阀从任何意义上从初始位置操作以致动流体马达的移动时，由此施加在阀的所述第一和第二腔中的压力的变化趋于使阀返回到其初始位置。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式