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公开(公告)号：US3667229A
公开(公告)日：1972-06-06
申请号：US3667229D
申请日：1969-12-15
申请人： FERRUCCIO MANZINI
发明人： CRESTO ARTURO
IPC分类号： B60T11/20 , B60T11/224 , F15B7/00 , F15B7/08
CPC分类号： B60T11/224
摘要： A device for supplying fluid under pressure has a two-part cylinder, one part being of narrower diameter than the other, and a two-part piston slidable in the cylinder. Two pressure chambers are defined by the cylinders and the piston. Advance of the piston reduces the volume of both. One, the high pressure chamber feeds an external pressure system, and is itself fed by the other chamber through a valve system during an initial phase of the piston stroke. In a later phase the feed from the second in the first chamber ceases and instead the second chamber feeds the fluid reservoir through a control valve. Pressure-transmitting means such as a rod is arranged between the high pressure chamber and the control valve to open the control valve when the pressure in the high pressure chamber exceeds a predetermined value.
摘要翻译： 用于在压力下供应流体的装置具有两部分圆柱体，一部分直径比另一部分小，以及可在圆筒中滑动的两部分活塞。 两个压力室由气缸和活塞限定。 活塞的推进减少了两者的体积。 一个，高压室供给外部压力系统，并且在活塞冲程的初始阶段期间，其自身通过阀门系统由另一个室进料。 在稍后阶段，来自第一腔室中的第二腔室的进料停止，而第二腔室通过控制阀供给流体储存器。 压力传递装置如杆被设置在高压腔和控制阀之间，当高压腔中的压力超过预定值时打开控制阀。
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公开(公告)号：US4027482A
公开(公告)日：1977-06-07
申请号：US581242
申请日：1975-05-27
申请人： Ferruccio Manzini
发明人： Ferruccio Manzini
IPC分类号： B60T11/20 , B60T11/224 , F15B7/04
CPC分类号： B60T11/224
摘要： The invention relates to a master-cylinder having a two-part cylinder, one part being of narrower diameter than the other, and a two-part piston slidable in the cylinder. Two pressure chambers are defined by the cylinder and the piston. Advance of the piston reduces the volume of both. One, the high pressure chamber feeds an external pressure system, and is itself fed by the other chamber through a valve system during an initial phase of the piston stroke. In a later phase the feed from the second in the first chamber ceases and instead the second chamber feeds the fluid reservoir through a control valve. Pressure-transmitting means such as a rod is arranged between the high pressure chamber and the control valve to open the control valve when the pressure in the high pressure chamber exceeds a predetermined value. A safety valve is provided downstream the control valve whereby, upon abnormal advance of the piston, terminating communication between the second chamber and the reservoir and again feeding the first chamber from the second chamber. The safety valve is actuated by a force transmitting element upon engagement with an abutment fixed relative to the master-cylinder housing.
摘要翻译： 本发明涉及一种具有两部分气缸，一部分具有比另一部分更小直径的主缸，以及可在气缸中滑动的两部分活塞。 两个压力室由气缸和活塞限定。 活塞的推进减少了两者的体积。 一个，高压室供给外部压力系统，并且在活塞冲程的初始阶段期间，其自身通过阀门系统由另一个室进料。 在稍后阶段，来自第一腔室中的第二腔室的进料停止，而第二腔室通过控制阀供给流体储存器。 压力传递装置如杆被设置在高压腔和控制阀之间，当高压腔中的压力超过预定值时打开控制阀。 安全阀设置在控制阀的下游，由此在活塞异常前进时，终止第二腔室和容器之间的连通，并再次将第一腔室从第二腔室供给。 当与相对于主缸壳体固定的邻接件接合时，安全阀由力传递元件致动。
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公开(公告)号：US4128249A
公开(公告)日：1978-12-05
申请号：US760602
申请日：1977-01-19
CPC分类号： B60T11/236 , F16J15/3248 , Y10T403/604
摘要： A sealing device is mounted in the bore of a housing in which a piston is slidably mounted. A fluid tight seal is mounted between a shoulder of the housing and a washer circumscribing the piston. The washer has an outer diameter substantially equal to that of the bore and comprises an outer annular groove in which at least one fixing element is disposed. Each fixing element comprises a tongue-shaped portion penetrating through a corresponding radial bore defined at the bottom of the annular groove. When the piston is inserted through the washer, the fixing elements are moved radially towards the outside of the washer through the tongue-shaped portions and penetrate into a facing annular groove formed in the bore.
摘要翻译： 密封装置安装在壳体的孔中，活塞可滑动地安装在壳体中。 流体密封被安装在壳体的肩部和限定活塞的垫圈之间。 垫圈的外径基本上等于孔的外径，并且包括外环形槽，其中设置有至少一个固定元件。 每个固定元件包括穿过限定在环形凹槽的底部的对应的径向孔的舌状部分。 当活塞通过垫圈插入时，固定元件通过舌形部分朝向垫圈的外部径向移动，并且穿透形成在孔中的面对的环形槽中。
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