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公开(公告)号：EP0759866A1
公开(公告)日：1997-03-05
申请号：EP95916742.0
申请日：1995-04-12
摘要： Master cylinder comprising a body (4) having a bore (5) closed on one side by an end (6) and on the other by a piston (7) sliding in said bore and delimiting a pressure chamber (8) connected to at least one brake motor through an outlet (11) of said chamber and through a pressure duct (12), the chamber and the pressure duct together delimiting a work volume filled with a hydraulic fluid. According to the invention, the work volume (8, 12) is also partially delimited by a leakage device for selectively providing hydraulic fluid to the exterior of said work volume on impact. Such a master cylinder provides improved safety in the event of a head-on collision.
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公开(公告)号：EP0662893B1
公开(公告)日：1996-06-12
申请号：EP93919405.6
申请日：1993-08-27
IPC分类号： B60T13/565 , B60T13/573 , B60T13/52
CPC分类号： B60T13/573 , B60T13/565
摘要： Power braking device comprising a pneumatic brake servo (1) associated with a master cylinder (2). The servo comprises a movable pneumatic piston (5) carrying a valve (7) and operates on a hydraulic reaction principle, the hydraulic piston (11) of the master cylinder comprising a hollow movable cylinder (13) receiving a boosting force, and a secondary hydraulic piston receiving an input force, both these forces constituing the total actuating force. A helical spring (22) between the secondary hydraulic piston and the movable cylinder exerts an adjustable resilient force in order to adjust the non-zero value of the actuating force.
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3.发明授权ENSEMBLE CONSTITUE PAR UN TABLIER ET UN SERVOMOTEUR PNEUMATIQUE D'ASSISTANCE AU FREINAGE POUR VEHICULE AUTOMOBILE 失效ENSEMBLE CONSTITAR PAR UN TABLIER ET UN SERVOMOTEUR PNEUMATIQUE D'ASSISTANCE AU FREINAGE POUR VEHICULE AUTOMOBILE
公开(公告)号：EP0638034B1
公开(公告)日：1995-12-06
申请号：EP93906657.7
申请日：1993-03-24
IPC分类号： B60T13/567
CPC分类号： B60T13/567
摘要： The present invention relates to an assembly comprising a bulkhead (10) separating the engine compartment from the passenger compartment and a pneumatic servomotor (12) for assisting braking of the vehicle and comprising essentially a passage wherein is introduced a control rod (16) actuated by a brake pedal in the passenger compartment and a closed casing defining pneumatic chambers of the servomotor in the engine compartment. According to the invention, the passage (14) is integral with a collar (18) whose diameter is substantially smaller that that of the orifice; the collar (18) is so conformed as to present at least partially an end wall (20) parallel to the bulkhead; the collar (18) has a peripheral groove wherein is housed a ring (22); the ring (22) has at least partially one elastic edge (24) projecting outwards. Thus, when the servomotor is in position in the orifice, the end wall (20) of the collar bears against the face of the bulkhead (10) in the engine compartment and the elastic edge (24) of the ring forms a brace between the other face of the bulkhead (10) and the groove.
摘要翻译： 本发明涉及一种组件，该组件包括将发动机舱与乘客舱分隔开的隔板（10）和用于辅助车辆制动的气动伺服电动机（12），并基本上包括通道，其中引入了由控制杆（16） 乘客舱中的制动踏板和限定发动机舱中的伺服电机的气室的封闭壳体。 根据本发明，通道（14）与轴环（18）形成一体，轴环的直径明显小于孔的直径; 所述套环（18）如此构造成至少部分地呈现平行于所述隔壁的端壁（20） 所述套环（18）具有容纳环（22）的周边凹槽; 环（22）具有至少部分地向外突出的一个弹性边缘（24）。 因此，当伺服马达在孔中就位时，轴环的端壁（20）抵靠发动机舱中的隔板（10）的表面，并且环的弹性边缘（24）在轴 隔板（10）的另一面和凹槽。
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公开(公告)号：EP0662893A1
公开(公告)日：1995-07-19
申请号：EP93919405.0
申请日：1993-08-27
IPC分类号： B60T13
CPC分类号： B60T13/573 , B60T13/565
摘要： Power braking device comprising a pneumatic brake servo (1) associated with a master cylinder (2). The servo comprises a movable pneumatic piston (5) carrying a valve (7) and operates on a hydraulic reaction principle, the hydraulic piston (11) of the master cylinder comprising a hollow movable cylinder (13) receiving a boosting force, and a secondary hydraulic piston receiving an input force, both these forces constituing the total actuating force. A helical spring (22) between the secondary hydraulic piston and the movable cylinder exerts an adjustable resilient force in order to adjust the non-zero value of the actuating force.
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公开(公告)号：EP0659134A1
公开(公告)日：1995-06-28
申请号：EP93919404.0
申请日：1993-08-27
IPC分类号： B60T13
CPC分类号： B60T13/57 , B60T13/569
摘要： A pneumatic brake servo comprises a casing (10) enclosing a piston (20) composed of a boss (34) and skirt (32). The casing (10) defines a front chamber (16) permanently connected to a vacuum source and a rear chamber (18) selectively connected to the front chamber (16) or to the atmosphere by means of a valve member (60, 62) actuated by a control rod (54) capable of coming to rest, through the front face of a plunger (44), on the rear surface of a reaction disc (48) integral with a thrust rod (52). A return spring (84) for the control rod (54) is disposed between the piston (34) and the plunger (44), the valve member (60, 62) including a shutter co-operating with a first circular valve seat (44a) on the piston (20), the shutter (60, 62) including a flexible membrane (60) of a generally truncated cone shape, sealingly fitted by its outer peripheral edge to the piston (20). According to the invention, the flexible membrane (60) is sealingly connected by its inner peripheral edge to a rigid tubular part (62) sealingly sliding in a rear tubular part (22) of the piston (20).
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公开(公告)号：EP0638035A1
公开(公告)日：1995-02-15
申请号：EP93906659.0
申请日：1993-03-24
IPC分类号： B60T13
CPC分类号： B60T13/575 , B60T13/52
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公开(公告)号：EP0613431A1
公开(公告)日：1994-09-07
申请号：EP92924755.0
申请日：1992-11-04
IPC分类号： B60T13
CPC分类号： B60T13/57
摘要： L'invention concerne un servomoteur pneumatique d'assistance au freinage comportant une enveloppe (10) à l'intérieur de laquelle se trouve un piston formé d'un moyeu (20) et d'une jupe (14) et qui, à l'aide d'une membrane déroulante (12) définit une chambre avant (16) reliée en permanence à une source de dépression et une chambre arrière (18) reliée sélectivement à la chambre avant (16) lors de l'ouverture d'un premier passage de valve (56, 58) ou à l'atmosphère lors de l'ouverture d'un second passage de valve (76, 78), les premier et second passages de valve (56, 58; 76, 78) étant formés par des premiers moyens de valve (58, 78) coopérant avec des seconds moyens de valve (56, 76), et étant actionnés par une tige de commande (35) susceptible de s'appuyer, par l'intermédiaire d'un plongeur (32), sur l'une des faces d'un disque de réaction (42) solidaire d'une tige de poussée (44). Selon l'invention, les premiers moyens de valve (58, 78) sont formés sur le moyeu (20) du piston.
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公开(公告)号：EP0646078B1
公开(公告)日：1996-02-21
申请号：EP93913081.1
申请日：1993-06-02
IPC分类号： B60T13/57
CPC分类号： B60T13/57
摘要： A device comprising, in a per se known manner, a valve (7) co-operating with two valve seats (10b, 16a) for controlling servo operation. The second seat (16a) is provided on a sliding sleeve (16) to accelerate air intake and cut the servo response time.
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公开(公告)号：EP0614428B1
公开(公告)日：1996-01-24
申请号：EP93901775.2
申请日：1992-11-26
IPC分类号： B60T13/567
CPC分类号： B60T13/5675
摘要： The invention relates to a brake servo comprising a housing (10) containing a piston structure which, by means of a roll-up membrane (12) defines a forward chamber (16) communicating permanently to a vacuum source by means of a valve (17) and a rear chamber (16) selectively communicating with the forward chamber (16) or with the atmosphere by means of a valve (34) upon actuation of a control rod (30), and a device (36) for fixing the servomotor to a wall (38) adjacent to a first face of the housing (10). According to the invention, openings (50, 60) are provided in the structure of the piston (14) and in a second face of the housing (10) and are aligned in the axial direction of the servomotor in oder to enable actuation of the fixing device (36) through the opening (60) in the second face of the housing (10).
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公开(公告)号：EP0687229A1
公开(公告)日：1995-12-20
申请号：EP94907604.0
申请日：1994-02-22
CPC分类号： B60T13/569 , B60T7/12 , B60T7/122 , B60T13/565 , B60T13/66 , B60T13/72
摘要： A power braking device including a pneumatic brake actuator (1) combined with a master cylinder (2) and provided with an electrically operated automatic control valve (26). Said actuator operates according to a mixed reaction principle and includes a movable pneumatic piston (5) supporting a control valve (7) actuated by a rod (8), as well as a partition (4) which is moved by a pressure differential and slidable relative to the pneumatic piston (5). Said device provides automatic braking with limited means and without disrupting the normal operation of the actuator.
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