公开(公告)号：US20220275803A1

公开(公告)日：2022-09-01

申请号：US17636939

申请日：2020-08-19

申请人： VHIT S.p.A. Societa Unipersonale

发明人： Pietro Francesco Crosio

IPC分类号： F04C15/00 ,  F04C2/10

摘要： Pump (1) comprising:—means (2) for pumping a working fluid;—an electric motor (3) for actuating the pumping means (2); said motor (3) comprising a stator (31) and a rotor (32) that interact for the actuation of the pumping means (2); said rotor (32) being rotatable about an axis of rotation (320);—an electronic unit (4) for controlling the electric motor (3);—a conduit (5) for the delivery of the working fluid downstream of the pumping means (2);—a line (6) for cooling the electric motor (3) and the electronic unit (4), said cooling line (6) being permanently open and drawing off some of the working fluid processed by the pumping means (2). The cooling line (6) comprises a first conduit (61) which is developed from a delivery area (22) of the pumping means (2).

公开(公告)号：US11208925B2

公开(公告)日：2021-12-28

申请号：US16652339

申请日：2018-10-15

申请人： VHIT S.p.A. Societa Unipersonale

发明人： Alessandro Fauda ,  Gabriele Andreolli ,  Leonardo Cadeddu ,  Luciano Marchetti ,  Pietro Francesco Crosio

IPC分类号： G01N33/28 ,  F01M1/18 ,  F01M11/10 ,  F16N29/04

摘要： A diagnostic system for a lubrication circuit of an internal combustion engine of a vehicle. The system includes a viscometer for detecting the viscosity of a lubricating liquid of the lubrication circuit, a temperature sensor for detecting the temperature of the lubricating liquid, and a control unit to acquire the state of the lubricating liquid, given by the viscosity detected for a given lubricating liquid condition, which includes the lubricating liquid temperature and the date of last replacement of the lubricating liquid, and for a given condition of use of the engine, and to assess the state of the lubricating liquid by comparing the detected viscosity of the lubricating liquid with the viscosity reference values stored in the database in the same or similar condition of lubricating liquid temperature, date of last replacement of the lubricating liquid and use of the engine.

公开(公告)号：US20150345496A1

公开(公告)日：2015-12-03

申请号：US14655416

申请日：2013-12-13

申请人： VHIT S.P.A.

发明人： Leonardo Cadeddu

IPC分类号： F04C29/02 ,  F04C25/02 ,  F04C18/06 ,  F04C15/00 ,  F04C2/06

CPC分类号： F04C29/02 ,  F04C2/06 ,  F04C15/0088 ,  F04C18/06 ,  F04C18/3441 ,  F04C25/02 ,  F04C29/028

摘要： A lubrication system (200) for a rotary vacuum pump (300) connectable to a thermal engine comprises a suction duct (50) connecting the pump (300) to a power brake (16), and a connecting duct (23) connecting the inside of the engine with the suction duct (50) in order to generate, through the connecting duct (23), a flow of an air-oil mixture sucked from the inside of the engine. A pump having a casing (40) which defines a pumping chamber (44) and a connecting duct (23) formed in the casing (40), and a lubrication method for such a pump are also provided.

摘要翻译： 用于可连接到热引擎的旋转式真空泵（300）的润滑系统（200）包括将泵（300）连接到动力制动器（16）的吸入管道（50）和连接到内燃机 的发动机，以便通过连接管道（23）产生从发动机内部吸入的空气 - 油混合物的流动。 一种具有限定泵送室（44）的壳体（40）和形成在壳体（40）中的连接管道（23）的泵以及这种泵的润滑方法。

公开(公告)号：US20080230343A1

公开(公告)日：2008-09-25

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：US20080164113A1

公开(公告)日：2008-07-10

申请号：US11886331

申请日：2006-03-20

申请人： Leonardo Cadeddu ,  Luigi Alberti

发明人： Leonardo Cadeddu ,  Luigi Alberti

IPC分类号： B60T11/21

CPC分类号： B60T11/20 ,  B60T17/18

摘要： A braking system for a vehicle having two pairs of wheels, has two master cylinders operating as pumps, wherein each master cylinder is operated by its own brake pedal and controls the braking on one rear wheel, as well as on the front wheels through a valve for the disconnection of the front vehicle braking. Each master cylinder is of the tandem type including two sections, the first section controlling the braking of the front wheels through the valve, whereas the second section controls the braking of that rear wheel, being a part of the pair of rear wheels, which is associated with the master cylinder. The first sections of both master cylinders are supplied by a first oil reservoir and the second sections of both master cylinders are supplied by a second oil reservoir at least partially independent from the first oil reservoir.

摘要翻译： 一种用于具有两对车轮的车辆的制动系统，具有作为泵操作的两个主缸，其中每个主缸由其自己的制动踏板操作并且通过阀门控制一个后轮上的制动以及在前轮上 用于断开前车辆制动。 每个主缸是串联式的，包括两个部分，第一部分通过阀控制前轮的制动，而第二部分控制作为该对后轮的一部分的该后轮的制动， 与主缸相关联。 两个主缸的第一部分由第一储油器供应，并且两个主缸的第二部分由至少部分地独立于第一储油器的第二储油器供应。

公开(公告)号：US09739269B2

公开(公告)日：2017-08-22

申请号：US14362941

申请日：2012-11-22

申请人： VHIT S.P.A.

发明人： Volker Leifert ,  Leonardo Cadeddu ,  Guido Zardo

IPC分类号： F04B17/00 ,  F04B17/03 ,  F04C23/02 ,  F04C25/02 ,  F04C29/00 ,  F04C29/02 ,  F04B17/05 ,  F04B19/04 ,  F04B39/02 ,  F04C15/00 ,  F04C18/344

CPC分类号： F04B17/03 ,  F04B17/05 ,  F04B19/04 ,  F04B39/02 ,  F04B39/0207 ,  F04C15/008 ,  F04C15/0088 ,  F04C18/344 ,  F04C23/02 ,  F04C25/02 ,  F04C29/0071 ,  F04C29/0085 ,  F04C29/021

摘要： A vacuum generation system, in particular for applications to hybrid-drive motor vehicles, comprises a vacuum pump (10) arranged to be independently driven by either an internal combustion engine (1 1) or an electric motor (12) depending on the vacuum conditions in utilizing devices (15) and the operating conditions of the internal combustion engine. A pump for use in such a system and a method of vacuum generation by using the system are also provided.

公开(公告)号：US09011124B2

公开(公告)日：2015-04-21

申请号：US13496444

申请日：2010-09-09

申请人： Leonardo Cadeddu

发明人： Leonardo Cadeddu

IPC分类号： F01C1/10 ,  F03C2/00 ,  F03C4/00 ,  F04C2/46 ,  F04C11/00 ,  F04C15/06 ,  F04C2/332

CPC分类号： F04C2/46 ,  F04C2/332 ,  F04C11/001 ,  F04C11/008 ,  F04C15/06 ,  F04C2240/20 ,  F04C2240/30 ,  F04C2240/40 ,  F04C2270/13

摘要： An enclosed positive displacement mechanism including a body with an inlet and an outlet; a rotor mounted in the body and rotatable about a main axis; an orbiting piston located in the cavity, rotatable about an eccentric secondary axis and arranged to orbit around the main axis to roll on the internal side surface of the cavity; and a vane located in the cavity, slidable in the piston and mounted in the body between one inlet and one outlet so as to oscillate. The orbiting piston and the vane divide in cyclic manner the cavity into a first and a second chamber with variable volume, which are mutually complementary and communicate with the inlet and the outlet. During a portion of its oscillation, the vane passes through the piston and is in contact with the side surface of the cavity, thereby separating the chambers in a fluid-tight manner.

摘要翻译： 封闭的正位移机构，包括具有入口和出口的主体; 安装在本体中并可围绕主轴线旋转的转子; 位于所述空腔内的旋转活塞绕所述偏心副轴线旋转并围绕所述主轴线绕轨道在所述空腔的内侧表面上滚动; 以及位于所述空腔中的叶片，其可在所述活塞中滑动并且安装在所述主体中的一个入口和一个出口之间以便摆动。 旋转活塞和叶片将空腔循环地分成具有可变体积的第一和第二室，这两个室具有相互补充的作用并与入口和出口连通。 在其振荡的一部分期间，叶片通过活塞并与空腔的侧表面接触，从而以流体密封的方式分离室。

公开(公告)号：US20150050173A1

公开(公告)日：2015-02-19

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： F04C14/22 ,  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 means of 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 the oil filter (62). The invention also concerns 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）的润滑油的位移泵具有能够通过具有偏心腔（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。 本发明还涉及一种调节泵（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。

公开(公告)号：US08789668B2

公开(公告)日：2014-07-29

申请号：US13386245

申请日：2010-07-13

申请人： Luigi Alberti ,  Leonardo Cadeddu

发明人： Luigi Alberti ,  Leonardo Cadeddu

IPC分类号： B60T11/00

CPC分类号： B60T11/101 ,  B60T11/21 ,  B62D11/08

摘要： The invention concerns a master cylinder assembly (10, 110) for balancing the braking of a couple of wheels (LBW, RBW) of a vehicle. Each master cylinder (12) has a hollow body (14), a piston (15) and a chamber (16) suitable for containing a fluid having a primary control pressure depending on a driving force applied on the piston (15) and intended to be transmitted to a utilizing device (LBB, RBB). The assembly further includes a balancing duct (58) into which the chambers (16) come out, and a plurality of normally closed balancing valves (60). Each balancing valve (60) is located between the balancing duct (58) and a respective chamber (16) and has a shutter (62) which is mechanically unconstrained to the primary piston (15) defining the primary chamber (16) to which said primary balancing valve (60) is associated, and which is operable for opening in a manner fluid-controlled by the primary control pressure taken by the fluid contained in the primary chamber (16) to which said balancing valve (60) is associated.

摘要翻译： 本发明涉及一种用于平衡车辆的一对车轮（LBW，RBW）的制动的主缸组件（10,110）。 每个主缸（12）具有中空体（14），活塞（15）和室（16），适于容纳根据施加在活塞（15）上的驱动力的主控制压力的流体， 被传送到利用装置（LBB，RBB）。 组件还包括平衡管道（58），腔室（16）从中排出，以及多个常闭平衡阀（60）。 每个平衡阀（60）位于平衡管道（58）和相应的室（16）之间，并且具有机械地不限制于限定主室（16）的主活塞（15）的活门（62），所述主室 主平衡阀60相关联，并且其可操作地以由与所述平衡阀（60）相关联的主室（16）中包含的流体所采取的初级控制压力流体控制的方式打开。

公开(公告)号：US20130175852A1

公开(公告)日：2013-07-11

申请号：US13823532

申请日：2011-09-14

申请人： Leonardo Cadeddu

发明人： Leonardo Cadeddu

IPC分类号： B60T11/21 ,  B60T11/10

CPC分类号： B60T11/21 ,  B60T11/108 ,  B60T17/04 ,  B62D11/08

摘要： A device for controlling braking in vehicles with two braking pedals (PS, PD), such as farm tractors, earthmovers and the like, comprises a body (30) in which there are formed: a pair of master cylinders (12S, 12D) with an associated brake booster (13S, 13D); a duct (18) for balancing braking of the rear wheels; seats (4, 5, 6) for a pair of balancing valves (14), a trailer brake valve (15) and a valve (16) for disabling braking of the front wheels; as well as passages (36, 46, 47, 62, 72) for transmitting a control pressure from the master cylinders to the valves and from the valves to outlets from the device (1) connected to the braking systems of the wheels of the vehicle and of a trailer, if any.

摘要翻译： 用于控制具有两个制动踏板（PS，PD）的车辆中的制动的装置，例如农用拖拉机，挖土机等，其包括主体（30），其中形成有一对主缸（12S，12D），其具有 相关的制动助力器（13S，13D）; 用于平衡后轮的制动的管道（18）; 用于一对平衡阀（14），拖车制动阀（15）和用于禁止前轮制动的阀（16）的座（4,5,6）。 以及用于将控制压力从主缸传递到阀和从阀连接到车辆的车轮的制动系统的装置（1）的出口的通道（36,46,47,62,72） 和拖车，如果有的话。