公开(公告)号：US11208925B2

公开(公告)日：2021-12-28

申请号：US16652339

申请日：2018-10-15

Applicant: VHIT S.p.A. Societa Unipersonale

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

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

Abstract: 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：US20190264590A1

公开(公告)日：2019-08-29

申请号：US16348536

申请日：2017-10-25

Applicant: Robert Bosch GmbH ,  VHIT S.p.A. Societa Unipersonale

Inventor： Alessandro Fauda ,  Leonardo Cadeddu ,  Steffen Meyer-Salfeld

IPC: F01M11/10 ,  F01M1/16 ,  F01M1/02 ,  F01M1/10

Abstract: Method for controlling the supply of oil to an internal combustion engine, comprising a procedure for detecting a potentially dangerous condition for the correct operation of an internal combustion engine (1). Said condition is the clogging of an oil filter (3) upstream of the engine (1) or the excessive presence of fuel in the lubricant oil. The detection procedure comprises the steps of: changing the flow rate of oil that transits through the filter (3) and that is processed by a pump (2) for lubricating the engine (1); detecting the time that passes between changing the oil flow rate and a detection of a pre-established variation in a parameter connected at least with the pressure downstream of said filter (3), said variation being determined by said change of the flow rate, said filter (3) being placed upstream of the engine (1); comparing said time with pre-established values.

公开(公告)号：US20200232356A1

公开(公告)日：2020-07-23

申请号：US16652339

申请日：2018-10-15

Applicant: VHIT S.P.A. Societa Unipersonal

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

IPC: F01M11/10 ,  G01N33/28

Abstract: 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：US20160222963A1

公开(公告)日：2016-08-04

申请号：US15021164

申请日：2014-09-09

Applicant: VHIT S.P.A.

Inventor： Leonardo Cadeddu ,  Alessandro Fauda

IPC: F04C14/22 ,  F01M1/02 ,  F04C2/344

CPC classification number: F04C14/223 ,  F01C21/106 ,  F01M1/02 ,  F01M2001/0238 ,  F04C2/3441 ,  F04C2240/81

Abstract: A rotary positive displacement pump for fluids, in particular, for the lubrication of a motor vehicle engine (61), has a displacement that can be regulated through the rotation of a stator ring (42) having an eccentric cavity (43) in which the rotor (15) of the pump (1) rotates. The stator ring (42) is housed within an in eccentric cavity (13) of an external ring (12). A rotor actuator (50), controlled by the electronic control unit of the motor vehicle, causes a synchronous rotation by an equal amount in opposite directions of both rings. A method of regulating the displacement of the pump (1) and lubrication system for a motor vehicle engine in which the pump is used are also provided.

Abstract translation: 用于流体的旋转容积式泵，特别是用于润滑机动车辆发动机（61）的旋转容积式泵具有通过具有偏心腔（43）的定子环（42）的旋转来调节的位移，其中， 泵（1）的转子（15）旋转。 定子环（42）容纳在外环（12）的偏心腔（13）内。 由机动车辆的电子控制单元控制的转子致动器（50）在两个环的相反方向上同步旋转相等的量。 还提供了一种调节泵（1）和使用泵的机动车辆发动机的润滑系统的位移的方法。