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1
US10527015B2
Publication/Patent Number: US10527015B2
Publication Date: 2020-01-07
Application Number: 15/309,241
Filing Date: 2015-03-25
Abstract: An electrical connector assembly of a fuel injector includes a body with external walls defining an internal volume and an internal wall dividing the connector in a first part adapted to be fixed in a complementary engagement with the body of the injector and, in a second part adapted to receive another electrical connector. The electrical connector assembly also includes at least one electrical terminal extending through the internal wall from an inner extremity protruding in the inner volume of the first part of the body, to an outer extremity protruding in the outer volume of the second part of the body. The outer extremity is shaped to receive in a complementary engagement an electrical terminal of said another electrical connector. The connector assembly is adapted to be in fluid communication with the back leak return conduit of the injector. An electrical connector assembly of a fuel injector includes a body with external walls defining an internal volume and an internal wall dividing the connector in a first part adapted to be fixed in a complementary engagement with the body of the injector and, in a second part ...More ...Less
2
US10527016B2
Publication/Patent Number: US10527016B2
Publication Date: 2020-01-07
Application Number: 15/774,973
Filing Date: 2016-11-09
Abstract: A plug connector for connecting to an electric connection of a fuel injector of an internal combustion engine can comprise a rail extending in a longitudinal direction and at least one insulating element arranged in a linearly movable manner in the longitudinal direction relative to the rail, wherein the at least one insulating element protrudes out of the rail in a transverse direction. In some embodiments, the at least one insulating element comprises means for electrically connecting to the electric connection of the fuel injector in an oil-tight and releasable manner on a side facing away from the rail in the transverse direction. In some embodiments, the rail comprises a guide extending in the longitudinal direction configured to guide the at least one insulating element relative to the rail in the longitudinal direction and hold the same in a formfitting manner in the transverse direction relative to the rail. A plug connector for connecting to an electric connection of a fuel injector of an internal combustion engine can comprise a rail extending in a longitudinal direction and at least one insulating element arranged in a linearly movable manner in the longitudinal direction ...More ...Less
3
US2020018275A1
Publication/Patent Number: US2020018275A1
Publication Date: 2020-01-16
Application Number: 16/344,570
Filing Date: 2017-10-19
Abstract: A positioning feature includes a first member so that in an embodiment where the pins of a connector are perpendicular to a main axis, an incorrect angular orientation is prevented by the positioning feature that would contact one of the pins and, a correct angular orientation is assured by the engagement of the first member between the pins. A positioning feature includes a first member so that in an embodiment where the pins of a connector are perpendicular to a main axis, an incorrect angular orientation is prevented by the positioning feature that would contact one of the pins and, a correct angular orientation ...More ...Less
4
US10208694B2
Publication/Patent Number: US10208694B2
Publication Date: 2019-02-19
Application Number: 15/371,499
Filing Date: 2016-12-07
Inventor: Han, Min-kyu  
Abstract: A method for controlling a plurality of injectors installed in the same cylinder of an engine may include determining whether an electrical failure occurred in any of the injectors, and entering a fail-safe mode when an electrical failure has occurred only in one of the plurality of injectors in the same cylinder. In the fail-safe mode, fuel supply to an injector that has experienced an electrical failure is cut off, and the amount of fuel injected into the cylinder by a normally operating injector is increased. A method for controlling a plurality of injectors installed in the same cylinder of an engine may include determining whether an electrical failure occurred in any of the injectors, and entering a fail-safe mode when an electrical failure has occurred only in one of the ...More ...Less
5
US10408156B2
Publication/Patent Number: US10408156B2
Publication Date: 2019-09-10
Application Number: 15/775,883
Filing Date: 2016-11-29
Inventor: Yanoto, Keisuke  
Abstract: A control device that is to output a driving signal to a fuel injector includes a full-lifting valve-closing response acquisition unit to acquire a full-lifting valve-closing profile indicating a valve-closing behavior of the fuel injector from a full-lifting state of a valve body constituting the fuel injector, based on a behavior of an electric signal from the full-lifting state to a closing state of the valve body, and a valve-opening response estimation unit to estimate a valve-opening profile indicating a valve-opening behavior when a valve-opening driving signal is input to the fuel injector, based on at least the full-lifting valve-closing profile. A control device that is to output a driving signal to a fuel injector includes a full-lifting valve-closing response acquisition unit to acquire a full-lifting valve-closing profile indicating a valve-closing behavior of the fuel injector from a full-lifting state of a valve ...More ...Less
6
US10428755B2
Publication/Patent Number: US10428755B2
Publication Date: 2019-10-01
Application Number: 15/514,834
Filing Date: 2015-09-28
Inventor: Yanoto, Keisuke  
Abstract: An ECU calculates peak-current arrival time (time elapsed before a detected current arrives at a target peak current), and calculates predetermined-current arrival difference time (time elapsed before the detected current becomes lower than a predetermined current after exceeding the predetermined current). The ECU uses a beforehand stored relationship between the predetermined-current arrival difference time and defined peak-current arrival time to calculate the defined peak-current arrival time corresponding to the latest predetermined-current arrival difference time. The ECU uses such defined peak-current arrival time to compare the latest peak-current arrival time with the defined peak-current arrival time (for example, calculates a difference between the peak-current arrival time and the defined peak-current arrival time), and thus determines a shift in detected current of a current detection circuit. An ECU calculates peak-current arrival time (time elapsed before a detected current arrives at a target peak current), and calculates predetermined-current arrival difference time (time elapsed before the detected current becomes lower than a predetermined current after ...More ...Less
7
US2019136808A1
Publication/Patent Number: US2019136808A1
Publication Date: 2019-05-09
Application Number: 16/230,055
Filing Date: 2018-12-21
Abstract: A fuel delivery injector includes a housing, an end cap including an inlet port fluidly coupled to a cavity to direct fuel vapor and liquid fuel into the cavity and an outlet port fluidly coupled to the cavity to direct fuel vapor and liquid fuel out of the cavity, a magnetic assembly fixedly positioned within the cavity, and a pumping assembly including a bobbin and a piston. A return spring is coupled to the pumping assembly to bias the pumping assembly to a home position and a valve assembly including a biasing spring is positioned between an inlet chamber and an outlet chamber. The liquid fuel entering the housing through the inlet port flows from the inlet port to the cavity and fuel vapor entering the housing through the inlet port is directed through a conduit to the outlet port. A fuel delivery injector includes a housing, an end cap including an inlet port fluidly coupled to a cavity to direct fuel vapor and liquid fuel into the cavity and an outlet port fluidly coupled to the cavity to direct fuel vapor and liquid fuel out of the cavity, a magnetic ...More ...Less
8
US2019189321A1
Publication/Patent Number: US2019189321A1
Publication Date: 2019-06-20
Application Number: 16/301,395
Filing Date: 2017-05-03
Assignee: ELTEK S.P.A.
Abstract: An electromagnetic device, such as an actuator for electrovalves or injectors, particularly for endothermal engines includes a coil winding of an electric wire covered with an insulating layer made of overmoulded plastic material. In order to prevent the electric wire from breaking at the ends thereof connected to the electric terminals, a protective insert is applied prior to the plastic moulding step. The insert is also made of thermoplastic material, so that it can melt locally together with the cover material, thereby ensuring a stable and effective union during the moulding process. The invention also relates to a process for manufacturing the device. An electromagnetic device, such as an actuator for electrovalves or injectors, particularly for endothermal engines includes a coil winding of an electric wire covered with an insulating layer made of overmoulded plastic material. In order to prevent the electric wire from ...More ...Less
9
EP3054146B1
Publication/Patent Number: EP3054146B1
Publication Date: 2019-07-10
Application Number: 15202874.2
Filing Date: 2015-12-29
10
EP3550136A1
Publication/Patent Number: EP3550136A1
Publication Date: 2019-10-09
Application Number: 17876281.1
Filing Date: 2017-11-30
Abstract: Provided is a fuel injection system (1) that injects fuel into a combustion chamber (CC) of an internal combustion engine (EG). The fuel injection system (1) includes a pressure accumulating unit (122) to which fuel is supplied from a high-pressure source (4) that supplies the fuel at a prescribed pressure, a first valve (21) that supplies the fuel supplied from the high-pressure source (4) into the pressure accumulating unit (122), and a second valve (22) that injects the fuel supplied to the pressure accumulating unit (122) into the combustion chamber (CC) from the pressure accumulating unit (122). Provided is a fuel injection system (1) that injects fuel into a combustion chamber (CC) of an internal combustion engine (EG). The fuel injection system (1) includes a pressure accumulating unit (122) to which fuel is supplied from a high-pressure source (4) that supplies the ...More ...Less
11
US10502172B2
Publication/Patent Number: US10502172B2
Publication Date: 2019-12-10
Application Number: 15/327,687
Filing Date: 2015-07-08
Inventor: Legrand, Philippe  
Abstract: A fuel injector includes a needle that can move between an entirely open position and a closed position is provided with a device for identifying the position of the needle, in which an electrical circuit is closed in the two extreme positions, the needle being in electrical contact with ground, the circuit being open in any other intermediate position of the needle, the needle not being grounded. A fuel injector includes a needle that can move between an entirely open position and a closed position is provided with a device for identifying the position of the needle, in which an electrical circuit is closed in the two extreme positions, the needle being in electrical ...More ...Less
12
US10352264B2
Publication/Patent Number: US10352264B2
Publication Date: 2019-07-16
Application Number: 15/740,670
Filing Date: 2016-06-29
Abstract: Since a factor affecting an individual difference learning result is reduced or eliminated regardless of a valve body behavior, it is possible to highly accurately detect an individual difference of a fuel injector caused by the valve body behavior and to reliably detect the individual difference even when the fuel injector is replaced. When a valve opening/closing timing of the fuel injector is learned by a learning unit, a unit of interrupting the learning if a predetermined condition is established, a unit of prohibiting the learning of the valve closing timing using the learning unit if a predetermined condition is established, or a unit of prohibiting the learning of the valve opening/closing timing of the fuel injector using the learning unit if a fuel pressure of a common rail supplying a fuel to the plurality of fuel injectors changes by a predetermined value or more within a predetermined time is provided. Since a factor affecting an individual difference learning result is reduced or eliminated regardless of a valve body behavior, it is possible to highly accurately detect an individual difference of a fuel injector caused by the valve body behavior and to reliably detect the ...More ...Less