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. 发明公开

EP0183279A3 Hydrostatic load-sense steering system 失效
标题翻译：静态负载转向系统
公开(公告)号：EP0183279A3
公开(公告)日：1986-07-30
申请号：EP85115358
申请日：1982-02-24
申请人： TRW INC.
发明人： Rau, Jim Lee , LaHue, Ronald Lee
IPC分类号： B62D05/08
CPC分类号： B62D5/07 , B62D5/097
摘要： A system for controlling fluid flow from a source to a steering motor and one or more auxiliary motors comprises a priority valve and a steering controller. the priority valve has a housing that includes an inlet port connected to the source, a priority flow outlet port, an auxiliary flow outlet port, and a pilot port. A biasing spring urges the priority valve spool toward a priority position directing all flow from the inlet port to the priority port. The priority valve includes a pilot flow conduit directing a pilot flow of fluid through an orifice to the pilot port. Pressure upstream of the pilot flow orifice acts on the priority valve spool in opposition to the spring, and pressure downstream of the pilot flow orifice acts on the valve spool in addition to the spring. The steering controller has a load sense cavity communicating with a load sense port, and a neutral vent orifice which, when the steering controller is in neutral, communicates said load sense cavity with a return port for allowing a pilot flow of fluid from the pilot port of the priority valve to flow through said steering controller to the reservoir. Upon actuation from its neutral position, the steering controller substantially restricts flow through the neutral vent orifice to the reservoir before its main flow control orifice opens. As a result, pressure at the downstream side of the pilot flow orifice of the priority valve substantially increases before the main flow control orifice opens and assists the spring to quickly urge the priority valve spool to its priority position. When the main flow control orifice is open the load sense cavity of the controller is connected to the downstream side of the main flow control orifice so that pressures across the priority valve are varied with pressure variations across the main flow control orifice in accordance with operator demand and steering load.
摘要翻译：用于控制从源到转向电动机和一个或多个辅助电动机的流体流动的系统包括优先阀和转向控制器。优先阀具有包括连接到源的入口端口，优先流出口，辅助流出口和先导端口的壳体。偏压弹簧将优先阀阀芯推向优先位置，将所有从入口端口流出的流量引导至优先端口。优先阀包括引导流动导管，其将流体的先导流通过孔口引导到先导端口。先导流量孔的上游压力作用在与弹簧相对的优先阀阀芯上，除了弹簧之外，先导流量孔下游的压力作用在阀芯上。转向控制器具有与负载感测端口连通的负载感应腔，以及中空通风口，当转向控制器处于空档状态时，该通风孔与所述负载感应腔连通，用于允许来自先导端口的流体的先导流优先阀通过所述转向控制器流到储存器。在从其中性位置致动时，转向控制器在其主流量控制孔口打开之前基本上限制通过中性通风口的流量到储存器。因此，在主流量控制孔打开之前，优先阀的先导流量孔的下游侧的压力大大增加，并且有助于弹簧快速地将优先阀阀推动到其优先位置。当主流量控制孔打开时，控制器的负载感应腔连接到主流量控制孔的下游侧，使得优先阀的压力随着主流量控制孔的压力变化而变化，根据操作者的需求和转向负载。

2. 发明公开

EP0078878A3 Power-assisted rack-and-pinion steering mechanism 失效
标题翻译：功率辅助的机架式转向机构
公开(公告)号：EP0078878A3
公开(公告)日：1984-05-23
申请号：EP82104764
申请日：1982-05-30
申请人： CORINT S.r.l.
发明人： Cordiano, Ettore
IPC分类号： B62D05/06 , B62D05/08
CPC分类号： B62D5/087 , B62D5/22
摘要： Power-assisted rack-and-pinion steering mechanism with a slide-valve which senses the axial thrusts acting on the pinion through a kinematic mechanism with a high transmission ratio, the slide member of the valve consisting of a piston 9 provided with frontal rims 11 and 12 on each end face, cooperating with associated seats formed on the housing, said rims and seats forming varying passages through which the two actuator chambers are connected to the reservoir, means being provided for varying also tha communication between the same chambers and the pump, depending on the torque applied to the pinion, piston, seats and housing being so designed that the fluid pressure existing in the operative chamber acts on one or the other piston end face and thus gives the driver the measure of the same pressure. The system is particularly suitable for a vacuum operated power-steering system which permits a very strong reduction in cost in comparison with a conventional hydraulic power-steering system.

3. 发明公开

EP0067572A3 A power assisted steering gear assembly 有权转让
标题翻译：动力辅助转向齿轮总成
公开(公告)号：EP0067572A3
公开(公告)日：1984-05-16
申请号：EP82302699
申请日：1982-05-26
申请人： CAM GEARS Limited
发明人： Frederick, John Adams
IPC分类号： B62D05/08 , B62D05/06
CPC分类号： B62D5/22 , B62D5/083 , F16D3/02 , Y10T137/86662
摘要： A power-assisted steering gear assembly in which displacement of a driven member or rack bar (1) on rotation of a driving member or pinion (3) through a steering input (4) is power assisted by means to which fluid pressure is supplied by a rotary valve (6) located on the axial side of the pinion remote from the steering input. One of the valve members (9) of the rotary valve is rotationally rigid with the pinion and the other of the valve members (8) is rotationally rigid with the steering input by way of a torsionally rigid transmission member (14) which extends axially through the pinion, the pinion and the steering input being resiliently coupled by a C-spring (19). A lost motion device (38) may be provided to relieve overstressing of the C-spring. Adjustment means (28) permits selective relative angular adjustment of the steering input and the transmission member without relative rotation of the valve members.

4. 发明公开

EP0090129A3 Fluid flow control apparatus 有权
标题翻译：流体流量控制装置
公开(公告)号：EP0090129A3
公开(公告)日：1984-03-28
申请号：EP83100351
申请日：1983-01-17
申请人： TRW INC.
发明人： Barker, Charles A. , Rau, Jim L.
IPC分类号： F15B13/07 , B62D05/08 , F15B13/02 , B62D05/06
CPC分类号： B62D5/07 , F15B13/022
摘要： An apparatus for controlling fluid flow to a steering motor and an auxiliary apparatus is capable of smoothly changing between conditions in which it directs relatively small and relatively large flows of fluid to the auxiliary apparatus. The apparatus includes a priority valve assembly having a valve member positioned in accordance with variations in the demand for steering fluid. A land on the valve member cooperates with a fixed valve surface to form a variable size orifice through which fluid flows to a steering controller. A second land on the valve member cooperates with a fixed valve surface to form a variable size main auxiliary flow control orifice through which all of the fluid flow to the auxiliary apparatus is directed during relatively low fluid flow rates to the auxiliary apparatus. A third land on the valve member cooperates with a fixed valve surface to form a second variable size flow control orifice through which additional fluid flow is directed to the auxiliary apparatus during relatively high fluid flow rates to the auxiliary apparatus.

5. 发明公开

EP0072311A3 Hydraulic distributor for a servomotor with return towards rest position 有权转让
标题翻译：伺服电机的液压分配器返回到位置
公开(公告)号：EP0072311A3
公开(公告)日：1984-03-28
申请号：EP82401453
申请日：1982-08-03
申请人： BENDIBERICA S.A.
发明人： Bacardit, Juan Simon
IPC分类号： B62D05/08
CPC分类号： B62D5/083

6. 发明公开

EP0092637A3 Apparatus with staged pressure differential for controlling fluid flow 有权
标题翻译：用于控制流体流动的压力差压装置
公开(公告)号：EP0092637A3
公开(公告)日：1984-03-21
申请号：EP83100350
申请日：1983-01-17
申请人： TRW INC.
发明人： Rau, Jim Lee
IPC分类号： F15B13/07 , B62D05/08
CPC分类号： B62D5/07 , F15B13/022 , Y10T137/2524 , Y10T137/266
摘要： A fluid flow control system includes a priority valve which is controlled by a pressure differential applied across the valve, and which directs priority flow to a steering circuit and excess flow to an auxiliary circuit. The system insures that during steering, a relatively high pressure differential is required to shift the priority valve away from a priority steering position in which all fluid flow is delivered to the steering circuit. It also insures that when the flow to the steering circuit is sufficient to satisfy the steering demand, and the valve is also directing flow to the auxiliary circuit, a lower pressure differential is required to shift the valve in a direction for increasing the flow to the auxiliary circuit.

7. 发明公开

EP0196172A3 Improved rotary valve 失效
标题翻译：改进的旋转阀
公开(公告)号：EP0196172A3
公开(公告)日：1987-07-01
申请号：EP86301549
申请日：1986-03-05
申请人： Bishop, Arthur Ernest , Roeske, Klaus Jürgen
发明人： Bishop, Arthur Ernest
IPC分类号： B62D05/08 , F16K11/076
CPC分类号： B62D5/0837 , Y10T137/86654 , Y10T137/86662 , Y10T137/86751
摘要： A core for a rotary valve for a power steering system having in its periphery a plurality of blind ended longitudinally extending slots separated by lands for use in a sleeve member having in its bore a similar array of longitudinally extending blind ended slots matching those of the valve core but in an underlap relationship thereto, the slots of one being wider than the lands of the other so defining a set of longitudinally extending orifices which open and close when relative rotation occurs between the valve core and the sleeve in which at least two sets of valve core edges have along a substantial portion of their length a contour which extends substantially parallel to the core axis characterised in that the contour comprises in section a continuous curve wherein, at points near the high operating pressure zone thereof, it has a large radius of curvature and lies substantially parallel to the valve core periphery and wherein at a point along the curve approaching the coacting edge of an adjacentsleeve land edge when in the neutral position of the valve itlies at a steep slope to the valve core periphery with a curve of progressively smaller radius therebetween.

8. 发明公开

EP0147290A3 Hydraulic servo steering for an automotive vehicle 有权
标题翻译：液压伺服转向汽车
公开(公告)号：EP0147290A3
公开(公告)日：1985-12-11
申请号：EP84402577
申请日：1984-12-13
申请人： AUTOMOBILES CITROEN , AUTOMOBILES PEUGEOT
发明人： Camus, Gérard
IPC分类号： B62D05/08 , B62D03/12
CPC分类号： G01L3/1407 , B62D5/087 , G01L5/221

9. 发明公开

EP0112209A3 Hydraulic distributor for a servo mechanism with limited reaction on the input member 有权转让
标题翻译：伺服机构的液压分配器在输入部件上具有有限的反应
公开(公告)号：EP0112209A3
公开(公告)日：1985-06-19
申请号：EP83402239
申请日：1983-11-21
申请人： BENDIBERICA S.A.
发明人： Simon Bacardit, Juan
IPC分类号： B62D05/08
CPC分类号： B62D5/083 , Y10T137/86638

10. 发明公开

EP0078879A3 Valve for power-steering systems 失效
标题翻译：用于动力转向系统的阀
公开(公告)号：EP0078879A3
公开(公告)日：1984-05-30
申请号：EP82104765
申请日：1982-05-30
申请人： CORINT S.r.l.
发明人： Cordiano, Ettore
IPC分类号： B62D05/08
CPC分类号： B62D5/22 , B62D5/087 , Y10S137/903 , Y10T74/1967
摘要： Valve for controlling a power-assisted rack-and-pinion steering mechanism, of the slide-valve kind, whose slide member 11 moves along an axis different from that of the pinion 1 as a result of the axial movement of the pinion produced by the thrust exerted on it by the rack because of the inclination of its teeth, said slide member being connected to the pinion through a kinematic mechanism with a high transmission ratio consisting of a rubber ring, all outer surfaces of which are enclosed by rigid walls, a push-rod 10, and resilient means pressing one against the other said rubber ring, push-rod and slide member in such a way that the displacements of the slide member is given by the displacement of the pinion multiplied by the ratio between the area of the rubber exposed to the axial thrust acting on the pinion and the area of the cross-section of push-rod 10.

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