Country
Full text data for US and EP
Status
Type
Filing Date
Publication Date
Inventor
Assignee
Click to expand
IPC
No.
Publication Number
Title
Publication/Patent Number Publication/Patent Number
Publication date Publication date
Application number Application number
Filing date Filing date
Inventor Inventor
Assignee Assignee
IPC IPC
1
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
2
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
4
EP3054146B1
Publication/Patent Number: EP3054146B1
Publication date: 2019-07-10
Application number: 15202874.2
Filing date: 2015-12-29
5
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
6
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
7
US2019120188A1
Publication/Patent Number: US2019120188A1
Publication date: 2019-04-25
Application number: 16/090,389
Filing date: 2017-03-22
Abstract: A fuel injector includes an injection nozzle with a body, in which a needle moves between a closed position, in which a first end of the needle rests on a seat, and an open position, in which the first end of the needle is lifted from the seat. The fuel injector also includes a control chamber, a control valve, and an upper guide guiding the needle axially by the second end thereof. An electric link in contact with the second end of the needle bring the needle to a predetermined electric potential. The needle is mounted in the body so as to be able to move therein while being electrically isolated from the body, except for the region of the seat, so that the needle is in electric contact with the body only in the closed position. A fuel injector includes an injection nozzle with a body, in which a needle moves between a closed position, in which a first end of the needle rests on a seat, and an open position, in which the first end of the needle is lifted from the seat. The fuel injector also includes a ...more ...less
8
EP3453861A1
Publication/Patent Number: EP3453861A1
Publication date: 2019-03-13
Application number: 17792662.3
Filing date: 2017-04-07
Abstract: A fuel injection control device includes a valve closing detection unit (54) to detect a valve closing timing by using either of an electromotive force quantity detection mode and a timing detection mode, a selection unit (21) to select either of the electromotive force quantity detection mode and the timing detection mode for detecting the valve closing timing, and a correction unit (21) to calculate a correction coefficient for correcting a requested injection quantity so as to reduce the difference between an estimated injection quantity and the requested injection quantity, and the selection unit selects the electromotive force quantity detection mode regardless of the value of the requested injection quantity when the calculation of the correction coefficient is not completed. A fuel injection control device includes a valve closing detection unit (54) to detect a valve closing timing by using either of an electromotive force quantity detection mode and a timing detection mode, a selection unit (21) to select either of the electromotive force quantity ...more ...less
9
EP3460223A1
Publication/Patent Number: EP3460223A1
Publication date: 2019-03-27
Application number: 17799008.2
Filing date: 2017-03-22
Abstract: Stratified air-fuel mixture is stably formed around an ignition plug during a stratified charge combustion operation. For this reason, to solve the above problem, the present invention provides an internal combustion engine control device for controlling an internal combustion engine. The internal combustion engine includes: a fluid injection valve provided along an axial direction of an ignition plug; and a fuel injection valve formed separately from the fluid injection valve and provided in a direction intersecting with the axial direction of the fluid injection valve, and the internal combustion engine control device includes a control unit which controls the fluid injection valve and the fuel injection valve so as to inject fluid from the fuel injection valve after injecting fluid from the fluid injection valve in a compression stroke. Stratified air-fuel mixture is stably formed around an ignition plug during a stratified charge combustion operation. For this reason, to solve the above problem, the present invention provides an internal combustion engine control device for controlling an internal combustion ...more ...less
10
EP3521607A1
Publication/Patent Number: EP3521607A1
Publication date: 2019-08-07
Application number: 19153633.3
Filing date: 2019-01-24
Abstract: A fuel injector for an internal combustion engine comprises a nozzle (12) with a body (16) and a needle (14), a control chamber (52) and a control valve (20). A detection circuit (64) is provided for detecting the position of both the needle (14) and the valve member (28) of the control valve (20), the detection circuit including first and second circuit branches (64.1, 64.2), both connected at one end to a common detection voltage terminal (66). The first circuit branch (64.1) includes a first electric link associated with the needle (14) and configured so that the needle forms a first switch member that closes the first circuit branch when the needle rests on its seat (42), the first circuit branch having a first predetermined resistance value (R1). The second circuit branch (64.2) includes a second electric link associated with the control valve (20) and configured so that the valve member (28) forms a second switch member that closes the second circuit branch when said valve member rests on its seat (26), the second circuit branch having a predetermined resistance value (R2) different from that of the first circuit branch. A fuel injector for an internal combustion engine comprises a nozzle (12) with a body (16) and a needle (14), a control chamber (52) and a control valve (20). A detection circuit (64) is provided for detecting the position of both the needle (14) and the valve member (28) of the ...more ...less
11
US10378496B2
Publication/Patent Number: US10378496B2
Publication date: 2019-08-13
Application number: 15/545,930
Filing date: 2016-01-08
Abstract: An object of the present invention is to provide a fuel injection valve configured to suppress bouncing of a valve element that is caused as a result of the valve element being rendered elastic when the valve element collides with a valve seat. The fuel injection valve of the present invention includes the valve element configured to come into contact with the valve seat for closing an injection hole and to separate from the valve seat for unclosing the injection hole, an elastic member urging the valve element toward the valve seat, a movable iron core disposed to be in and out of contact with the valve element, a fixed iron core disposed to be opposed to the movable iron core, and a coil configured to generate electromagnetic force for moving the movable iron core. At least one lower rigidity part having reduced rigidity per axial unit length is provided between a surface where urging force of the elastic member is transmitted to the valve element and a seat part whereat the valve element comes into contact with and separates from the valve seat. An object of the present invention is to provide a fuel injection valve configured to suppress bouncing of a valve element that is caused as a result of the valve element being rendered elastic when the valve element collides with a valve seat. The fuel injection valve of the ...more ...less
12
US10253712B2
Publication/Patent Number: US10253712B2
Publication date: 2019-04-09
Application number: 15/038,681
Filing date: 2014-09-30
Inventor: Zhang, Hong  
Abstract: The present disclosure provides a method for operating an injector of an internal combustion engine, the nozzle needle of said injector being operated by a piezo actuator by means of a servo valve. The method may include eliminating the idle travel of the piezo actuator by maintaining a permanent direct force connection between the piezo actuator and the servo valve, so that a change in force on the servo valve due to a change in pressure in the valve chamber when the servo valve is opened and closed and when the nozzle needle of the injector is closed is always transmitted to the piezo actuator as a change in force, detecting the resulting change in voltage and/or capacitance of the piezo actuator, and ascertaining parameters with which the injection quantity which is output by the injector is regulated based on the result of the detection. The present disclosure provides a method for operating an injector of an internal combustion engine, the nozzle needle of said injector being operated by a piezo actuator by means of a servo valve. The method may include eliminating the idle travel of the piezo actuator by ...more ...less
13
US10233884B2
Publication/Patent Number: US10233884B2
Publication date: 2019-03-19
Application number: 15/758,682
Filing date: 2016-08-03
Abstract: The present invention includes a bobbin having a winding part around which a coil winding is wound, a terminal extending from the bobbin in the axial direction of the bobbin, and a wrapping part which is provided to the terminal and in which a terminal lead wire pulled out from a coil part that is wound around the winding part is wrapped and fused. The terminal lead wire wired between the bobbin and the wrapping part in a state of being in contact with the surface of the terminal. The peripheries of the bobbin, the wiring part of the terminal lead wire and the wrapping part are covered with resin. The present invention includes a bobbin having a winding part around which a coil winding is wound, a terminal extending from the bobbin in the axial direction of the bobbin, and a wrapping part which is provided to the terminal and in which a terminal lead wire pulled out from ...more ...less
14
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