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1. 发明申请

WO2009090079A2 A DISPLACEMENT PUMP WITH A BARRIER AGAINST THE FLUID LEAKAGE 审中-公开
标题翻译：具有阻挡液体泄漏的障碍物的位移泵
公开(公告)号：WO2009090079A2
公开(公告)日：2009-07-23
申请号：PCT/EP2009/000244
申请日：2009-01-12
申请人： VHIT S.P.A. - UNIPERSONALE , FERMINI, Franco , OMACINI, Giuseppe
发明人： FERMINI, Franco , OMACINI, Giuseppe
IPC分类号： F04C27/00
CPC分类号： F04C18/3441 , F04C27/009
摘要： A displacement pump driven by a motor, wherein a barrier (4.1; 8; 2.2) suitable for preventing or reducing the fluid leakage is inserted in at least one of the pump regions which are subjected to a leakage between the inner space of the pump and the outside. In one embodiment, in one of two component parts (2,4) subjected to relative movement is formed at least one step (4.1 ) which determines a limited region of mutual contact between the two component parts (2,4) subjected to relative movement, thus forming a sort of labyrinth which favores the seal against the fluid leakage. As an alternative, on one of the two component parts (2,4) subjected to relative movement is provided an annular inclined area (4.2) located facing a seat (2.1 ) for an annular sealing element (8) whereby, due to the pressure difference between the inner fluid and the outer fluid, the annular sealing element (8) is biased to contact against the annular inclined area (4.2). Moreover, the sealing barrier (2.2) can be provided in the region wherein there is a coupling joint (5) driving the rotor (4), by forming on the support member (2) a step (2.2) which acts as a closure for the rotor (4) and keeps in position the driving coupling joint (5), the coupling clearance being annulled by the oil penetrating between the parts.
摘要翻译：由电动机驱动的排量泵，其中适于防止或减少流体泄漏的阻挡层（4.1; 8; 2.2）被插入在泵的内部空间和泵的内部空间之间经受泄漏的至少一个泵区域外。在一个实施例中，经受相对运动的两个部件（2,4）中的一个形成有至少一个台阶（4.1），其确定经受相对运动的两个部件（2,4）之间的相互接触的有限区域，从而形成一种迷宫，其有利于密封件抵抗流体泄漏。作为替代，在经受相对运动的两个部件（2,4）中的一个上设置有面向环形密封元件（8）的座（2.1）的环形倾斜区域（4.2），由此由于压力内部流体和外部流体之间的差异，环形密封元件（8）被偏压以接触环形倾斜区域（4.2）。此外，密封屏障（2.2）可以设置在驱动转子（4）的联接接头（5）的区域中，在支撑部件（2）上形成作为闭合件的台阶（2.2）转子（4）并保持驱动联轴节（5）的位置，连接间隙被部分之间的油渗透。

2. 发明申请

WO2009090078A3 A HYDRAULIC BRAKING DEVICE HAVING SECURITY PROVISIONS, FOR A FARM TRACTOR OR A SIMILAR VEHICLE 审中-公开
公开(公告)号：WO2009090078A3
公开(公告)日：2009-07-23
申请号：PCT/EP2009/000243
申请日：2009-01-12
申请人： VHIT S.P.A. UNIPERSONALE , CADEDDU, Leonardo
发明人： CADEDDU, Leonardo
IPC分类号： B60T11/21 , B60T13/14
摘要： A braking system for farm tractors and similar vehicles, comprising a differential braking system and a hydraulic system for the braking assistance forming a system unit (H) which includes two circuit branches (H1,H2), each circuit branch operating the braking with respect of one side of the vehicle. According to the invention, to said system unit (H) are applied, through connection interfaces (36,37), two control units (C1,C2), each control unit including an electrovalve (20) and a distributor (24) operated by said electrovalve, each said distributor (24) controlling the operation of the system unit (H) with respect to one of the circuit branches (H1,H2), and each said electrovalve (20) being singularly controlled by an electronic control circuit (EL) provided with sensors (V,R,P,A) of the main vehicle parameters, such as a sensor (V) of the vehicle speed, sensors (R) of the speed of singular wheels, sensors (P) of the positions of the braking pedals and a sensor (A) of the position of the accelerator pedal. In this manner the vehicle is equipped with a function of regulation of the slip in traction (ASR), or with a function preventing the wheel blockage in braking (ABS), or with a function of stability control (ESP), or with several of these and other functions, having a great utility to the aim of security when the vehicle runs on road at a high speed.

3. 发明申请

WO2009141097A1 A VANE WITH TILTING TIPS, AND A ROTARY DISPLACEMENT PUMP USING THIS VANE 审中-公开
标题翻译：带有倾斜提示的VANE，以及使用该VANE的旋转位移泵
公开(公告)号：WO2009141097A1
公开(公告)日：2009-11-26
申请号：PCT/EP2009/003460
申请日：2009-05-12
申请人： VHIT S.P.A. UNIPERSONALE , FERMINI, Franco , POLLONI, Vittorio
发明人： FERMINI, Franco , POLLONI, Vittorio
IPC分类号： F01C21/08 , F04C18/344 , F04C27/00 , F04C28/28
CPC分类号： F01C21/0881 , F04C18/3441 , F04C2270/12 , F04C2270/13
摘要： A vane for a displacement pump comprising a body (1), a profiled pumping chamber (2) defined within said body (1), and a rotor (4) rotatably mounted within said body (1), eccentric with respect to the pumping chamber (2) and carrying a vane (5) whose end portions slide against the inner surface (3) of the pumping chamber (2), characterized in that each operating end portion of the vane (5) is formed by a tilting tip (9) having a coupling means (11) articulated with respect to the vane body (5) and suitable for tilting within a limited field with respect to the vane body (5), the shape of the tip (9) and the allowed tilting field being such that the tilting tip (9) is applied against the inner surface (3) of the pumping chamber (2) when the vane (5) is rotated in a preestablished working direction (F1), and being such that the tip (9) is allowed to retract from the inner surface (3) of the pumping chamber (2) when the vane (5) is rotated in the direction (F2) opposite to the preestablished operating direction (F1). The invention also concerns a rotary displacement pump comprising at least a vane with tilting tips.
摘要翻译：一种用于排量泵的叶片，包括主体（1），限定在所述主体（1）内的成型泵送室（2）和可旋转地安装在所述主体（1）内的相对于泵送室偏心的转子（2）并且承载其端部抵靠所述泵送室（2）的内表面（3）滑动的叶片（5），其特征在于，所述叶片（5）的每个操作端部由倾斜尖端（9）形成）具有相对于叶片本体（5）铰接并适合于相对于叶片本体（5）的有限场倾斜的联接装置（11），尖端（9）的形状和允许的倾斜场是使得当叶片（5）以预先建立的工作方向（F1）旋转时，倾斜尖端（9）被施加到泵送室（2）的内表面（3）上，并且使得尖端（9）当叶片（5）沿着与预制件（2）相对的方向（F2）旋转时，允许从泵送室（2）的内表面（3）操作方向（F1）。本发明还涉及一种旋转排量泵，其包括具有倾斜尖端的至少一个叶片。

4. 发明申请

WO2009121517A2 A ROTARY DISPLACEMENT PUMP WITH VANES, SUITABLE FOR OPERATING WITH SCARCE OR ABSENT LUBRICATION 审中-公开
标题翻译：带有风扇的旋转位移泵，适用于操作或无油润滑
公开(公告)号：WO2009121517A2
公开(公告)日：2009-10-08
申请号：PCT/EP2009/002221
申请日：2009-03-24
申请人： VHIT S.P.A. UNIPERSONALE , FERMINI, Franco , POLLONI, Vittorio
发明人： FERMINI, Franco , POLLONI, Vittorio
IPC分类号： F04C18/348 , F04C28/28
CPC分类号： F04C18/348 , F01C21/106 , F04C2220/12
摘要： A rotary displacement pump with vanes, which comprises a body (2), a pumping chamber defined within the body (2) by a peripheral wall (3) having a cylindrical shape with a circular cross section, and comprises a rotor (4) that carries vanes (5) and can be put in eccentric rotation within the pumping chamber, wherein a freely rotatable annular member (11) is installed inside the cylindrical peripheral wall (3) and defines a pump operating space (C) wherein rotates the vanes carrying rotor (4), the end portions of the vanes (5) being put in radial slipping contact against the inner surface of the rotatable annular member (11). Preferably, between the pumping chamber wall (3) of the pump and the outer surface of the freely rotatable annular member (11) there is left free a cavity (12), and this cavity (12) is put in communication with a delivery connection (10) of the pump. A freely rotatable disc (14) may be placed between at least an axial end of the vane carrying rotor (4) and the corresponding end wall of the pumping chamber, forming a cavity (15) which is put in communication with a delivery connection (10) of the pump. Preferably, the pump is coupled with an own electric motor (16) for driving the same.
摘要翻译：一种具有叶片的旋转排量泵，其包括主体（2），通过具有圆形横截面的圆柱形状的周壁（3）限定在主体（2）内的泵送室，并且包括转子（4），其承载叶片（5）并且可以在泵送室内偏心旋转，其中可自由旋转的环形构件（11）安装在圆柱形周壁（3）内部并且限定泵操作空间（C），其中旋转叶片承载转子（4），叶片（5）的端部与可旋转环形构件（11）的内表面径向滑动接触。优选地，在泵的泵送室壁（3）和可自由旋转的环形构件（11）的外表面之间留有空腔（12），并且该空腔（12）与输送连接（10）。可自由旋转的盘（14）可以放置在叶片承载转子（4）的至少轴向端部与泵送室的相应端壁之间，形成空腔（15），其与输送连接件 10）。优选地，泵与自己的电动机（16）联接以驱动它们。

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