公开(公告)号：US20100289324A1

公开(公告)日：2010-11-18

申请号：US12812512

申请日：2009-01-12

申请人： Leonardo Cadaddu

发明人： Leonardo Cadaddu

IPC分类号： B60T11/21 ,  B60T13/138 ,  B60T8/175 ,  B60T8/176 ,  B60T8/34

CPC分类号： B60T8/4845 ,  B60T8/4004 ,  B60T11/203 ,  B60T11/21

摘要： A braking system for farm tractors and similar vehicles, has 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 to one side of the vehicle. To the system unit 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 the electrovalve, each distributor controlling the operation of the system unit (H) with respect to one of the circuit branches, and each electrovalve being singularly controlled by an electronic control circuit (EL) provided with sensors 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.

摘要翻译： 用于农用拖拉机和类似车辆的制动系统具有差速制动系统和用于制动辅助的液压系统，形成包括两个回路分支（H1，H2）的系统单元（H），每个回路支路相对于 车辆的一侧。 通过连接接口（36,37）和两个控制单元（C1，C2）来应用系统单元，每个控制单元包括由电阀操作的电阀（20）和分配器（24），每个分配器控制操作 的系统单元（H）相对于其中一个电路分支，并且每个电子阀由设置有主要车辆参数的传感器的电子控制电路（EL）单独控制，诸如车速的传感器（V） ，单个轮的速度的传感器（R），制动踏板的位置的传感器（P）和加速器踏板的位置的传感器（A）。

公开(公告)号：US07726453B2

公开(公告)日：2010-06-01

申请号：US11632702

申请日：2005-07-19

申请人： Leonardo Cadeddu

发明人： Leonardo Cadeddu

IPC分类号： F16D31/06

CPC分类号： F04C28/06 ,  F04C2/344 ,  F04C2220/10 ,  F16D31/06

摘要： A device for controlling the activation of an apparatus by a motor, intended to be inserted between, the operation output of the motor and the operation input of the apparatus whose activation is to be controlled. The device includes: —a blade pump having a rotor, at least one blade carried by this rotor and a rotary body forming a pumping chamber missing an outlet, and one of the component parts, among the rotor and the rotary body, being connected to the operation output of the motor, whilst the other of these component parts is connected to the operation input of the apparatus to be controlled; —and a supply intended to supply liquid to the pumping chamber.

摘要翻译： 一种用于通过电动机控制装置的启动的装置，其用于插入电动机的操作输出和其控制激活装置的操作输入之间。 该装置包括：叶片泵，其具有转子，由该转子承载的至少一个叶片和形成不存在出口的泵送室的旋转体，以及转子和旋转体中的一个部件连接到 电动机的操作输出，而这些组件中的另一个连接到要控制的装置的操作输入; 以及用于将液体供应到泵送室的供应。

公开(公告)号：US20090104063A1

公开(公告)日：2009-04-23

申请号：US12294046

申请日：2007-04-03

申请人： Leonardo Cadeddu ,  Franco Fermini ,  Vittorio Polloni

发明人： Leonardo Cadeddu ,  Franco Fermini ,  Vittorio Polloni

IPC分类号： F01C21/08

CPC分类号： F04C18/3441 ,  F01C21/0809 ,  F04C2240/802 ,  F05C2225/00

摘要： A rotor (1-3) moulded of plastic material, intended for rotary installation in a cavity of a pump body and for reception of one or more vanes forming the pumping members, characterized in that at least a part of the surfaces thereof, intended to undergo sliding displacements against other pump members, is covered by at least one metallic foil (4) caused to adhere to the subjacent surface of plastic material. The metallic foil can consist of a steel sheet or an aluminum alloy sheet, intended for reducing the resistances to the sliding as well as for mechanically reinforcing the rotor. The metallic foil can be fastened to the plastic material body (1) of the rotor by a co-moulding operation, or it can be mechanically fixed to the body (1) of the rotor moulded of plastic material.

摘要翻译： 由塑料材料模制的转子（1-3），用于旋转安装在泵体的腔体中并用于接收形成泵送构件的一个或多个叶片，其特征在于，其至少部分表面旨在 经受相对于其它泵构件的滑动位移，被至少一个金属箔（4）覆盖，从而粘附到塑料材料的下表面。 金属箔可以由钢板或铝合金板组成，用于降低滑动阻力以及用于机械地加强转子。 金属箔可以通过共模塑操作紧固到转子的塑料体（1）上，或者可以机械地固定到由塑料材料模制的转子的主体（1）上。

公开(公告)号：US07195467B2

公开(公告)日：2007-03-27

申请号：US10519244

申请日：2003-06-17

申请人： Leonardo Cadeddu

发明人： Leonardo Cadeddu

IPC分类号： F03C2/00 ,  F04C2/00

CPC分类号： F04C15/0073 ,  F01C1/084 ,  F01C1/103 ,  F01C20/185 ,  F04C2/102 ,  F04C2270/18

摘要： A fluidic machine has a fixed body, an external orbital member rotatable around a first rotational axis and internal gear teeth including a first teeth number, a transmission member rotatable around a second rotational axis, an internal orbital member supported by the transmission member, having external gear teeth including a second teeth number different from the first teeth number and meshing with the internal gear teeth of the external orbital member, thus determining among the gear teeth of the two orbital members spaces whose volume is variable during rotation. One of the orbital members is mounted axially displaceable and is pushed by an elastic push member in the direction producing a more extended engagement with the other orbital member, and a piston, mounted displaceable within the non-axially displaceable orbital member and resting against the axially displaceable orbital member, is subjected, to the pressure of the high pressure connection.

摘要翻译： 流体机具有固定体，可围绕第一旋转轴线旋转的外部轨道构件和包括第一齿数的内齿轮齿，可围绕第二旋转轴线旋转的传动构件，由传动构件支撑的内部轨道构件，具有外部 齿轮齿包括与第一齿数不同的第二齿数并与外轨道构件的内齿轮啮合，从而在旋转期间体积可变的两个轨道构件空间的齿轮齿之间进行确定。 其中一个轨道构件被安装成可轴向移动，并且通过弹性推动构件沿与产生与另一个轨道构件更加延伸的接合的方向推动，以及活塞，其可移动地位于不可轴向移动的轨道构件内并抵靠轴向 可移动的轨道构件经受高压连接的压力。

公开(公告)号：US11965505B2

公开(公告)日：2024-04-23

申请号：US17636939

申请日：2020-08-19

申请人： VHIT S.p.A.

发明人： Pietro Francesco Crosio

IPC分类号： F04C15/00 ,  F04C2/10 ,  F04C29/04 ,  F04D29/58

CPC分类号： F04C15/0096 ,  F04C2/10 ,  F04C29/047 ,  F04D29/5806 ,  F04D29/5813 ,  F04D29/584 ,  F04D29/588 ,  F04C2240/40 ,  F04C2240/808

摘要： A pump (1) for pumping a working fluid includes an electric motor (3) for actuating the pump and a motor (3) having a stator (31) and a rotor (32) that interact for the actuation of the pump. The rotor (32) is rotatable about an axis of rotation (320). The pump includes an electronic unit (4) for controlling the electric motor (3), a conduit (5) for the delivery of the working fluid downstream of the pump, a line (6) for cooling the electric motor (3), and the electronic unit (4). The cooling line (6) is permanently open and drawing off some of the working fluid processed by the pump. The cooling line (6) includes a first conduit (61) which is developed from a delivery area (22) of the pump.

公开(公告)号：US20200247377A1

公开(公告)日：2020-08-06

申请号：US15774510

申请日：2016-12-09

申请人： VHIT S.p.A.

发明人： Leonardo Cadeddu

IPC分类号： B60T11/21

摘要： A pressure balancing system for a pair of tandem master cylinders. Each tandem master cylinder includes a primary plunger, a secondary plunger, a primary chamber, a secondary chamber and a secondary preload sub-assembly, comprising a secondary preload pin and a secondary preload case. The pressure balancing system comprises a primary balancing system and a secondary balancing system. The primary balancing system includes a primary balancing duct establishing communication of a primary balancing channel with the master cylinder at a region occupied by the secondary plunger when the latter is in an initial rest position, and a primary balancing O-ring forming a primary balancing valve between the primary balancing duct and the primary chamber. The secondary balancing system comprises a secondary balancing duct formed within the secondary preload pin and a second end ending with at least one radial hole, and a secondary balancing O-ring fixed to the secondary preload case.

公开(公告)号：US10532723B2

公开(公告)日：2020-01-14

申请号：US16064071

申请日：2016-12-07

申请人： VHIT S.P.A.

发明人： Leonardo Cadeddu

IPC分类号： B60T13/14 ,  B60T11/236

摘要： A hydraulic device for controlling braking for farm tractors, earthmovers and like machines, comprises a master cylinder and brake booster. A piston of the brake booster defines first and second chambers which, under rest conditions, are in communication and, during braking, are cut off with the first chamber being put in communication with a discharge chamber of the master cylinder. The piston of the master cylinder is driven by a drive piston shaped to define with a plunger of the piston of the brake booster a hollow space through which the first chamber communicates with either the second chamber or the discharge chamber, depending on device operating conditions. In the plunger, a seat for a gasket-valve is arranged to cooperate with the drive piston, during braking, to prevent fluid leakage between the second and the first chamber as a consequence of the sliding of the drive piston caused by braking.

公开(公告)号：US10449940B2

公开(公告)日：2019-10-22

申请号：US15754432

申请日：2016-09-02

申请人： VHIT S.p.A.

发明人： Leonardo Cadeddu

IPC分类号： B60T13/14 ,  B60T7/12 ,  B60T13/24 ,  B60T13/38 ,  B60T15/38 ,  B60T15/42 ,  B60T17/04 ,  B60T17/22 ,  F15B7/08 ,  F16K31/122

摘要： A pre-filling device for a braking system. The pre-filling device includes a pre-filling channel, a pre-filling pressure being inside the channel when the braking system is in a rest and hydro-boost position, and a mechanical valve configured to be opened following a transition from the rest and hydro-boost position to a working position of the braking system; and a hydraulic valve cooperating with the mechanical valve setting the pre-filling pressure inside the channel. The hydraulic valve includes in a first area, facing the mechanical valve, a hole communicating with the channel, and in a second area, hydraulically isolated from the first area, a preloaded resilient element in a chamber held at atmospheric pressure. The hydraulic valve is configured to be connected or not to be connected, by a reciprocating movement inside the channel, to a hydro-booster device and to keep a predetermined pre-filling pressure upon varying of the hydro-boost pressure.

公开(公告)号：US09765778B2

公开(公告)日：2017-09-19

申请号：US14386238

申请日：2013-03-13

申请人： VHIT S.P.A.

发明人： Leonardo Cadeddu ,  Matteo Cortesi

IPC分类号： F03C4/00 ,  F04C21/00 ,  F04C23/00 ,  F04C9/00 ,  F04C14/18 ,  F04C28/18 ,  F04B49/08 ,  F04C14/22 ,  F04C11/00 ,  F04C15/00 ,  F04C2/344

CPC分类号： F04C14/223 ,  F04C2/3441 ,  F04C2/3442 ,  F04C11/006 ,  F04C15/0042

摘要： A rotary positive displacement pump for fluids, in particular for the lubrication oil of a motor vehicle engine (60), has a displacement that can be regulated by means of the rotation of a stator ring (12) having an eccentric cavity (13) in which the rotor (15) of the pump (1) rotates. The stator ring (12) is configured as a multistage rotary piston for displacement regulation and is arranged to be directly driven by a fluid under pressure, in particular oil taken from a delivery side (19) of the pump or from a point of the lubrication circuit located downstream the oil filter (62). The invention also concerns a method of regulating the displacement of the pump (1) and a lubrication system for a motor vehicle engine in which the pump (1) is used.

公开(公告)号：US09404495B2

公开(公告)日：2016-08-02

申请号：US14386229

申请日：2013-03-13

申请人： VHIT S.P.A.

发明人： Leonardo Cadeddu

IPC分类号： F03C2/00 ,  F03C4/00 ,  F04C2/00 ,  F04C14/22 ,  F04C18/344 ,  F04C18/356 ,  F04C2/344

CPC分类号： F04C14/226 ,  F04C2/3441 ,  F04C2/3446 ,  F04C14/223 ,  F04C18/3441 ,  F04C18/3446 ,  F04C18/3564

摘要： A rotary positive displacement pump for fluids, in particular for the lubrication oil of a motor vehicle engine (60), has a displacement that can be regulated by the rotation of a stator ring (112) having an eccentric cavity (113) in which the rotor (15) of the pump (1) rotates. The stator ring (112) is located in an eccentric cavity (13) of an external ring (12), which is configured as a multistage rotary piston for displacement regulation and is arranged to be directly driven by a fluid under pressure, in particular oil taken from a delivery side (19) of the pump or from a point of the lubrication circuit located downstream of the oil filter (62). A method of regulating the displacement of the pump (1) and a lubrication system for the engine of a motor vehicle in which the pump (1) is used.

摘要翻译： 用于流体的旋转容积式泵，特别是用于机动车辆发动机（60）的润滑油的旋转容积式泵具有通过具有偏心腔（113）的定子环（112）的旋转来调节的位移，其中， 泵（1）的转子（15）旋转。 定子环（112）位于外环（12）的偏心腔（13）中，其被配置为用于位移调节的多级旋转活塞，并且被布置成由压力下的流体（特别是油）直接驱动 从泵的输送侧（19）或从位于油过滤器（62）下游的润滑回路的点取出。 一种调节泵（1）的位移的方法和用于其中使用泵（1）的机动车辆的发动机的润滑系统。