JP5969373B2 - Fuel injection valve with in-cylinder pressure sensor - Google Patents

Fuel injection valve with in-cylinder pressure sensor Download PDF

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Publication number
JP5969373B2
JP5969373B2 JP2012271921A JP2012271921A JP5969373B2 JP 5969373 B2 JP5969373 B2 JP 5969373B2 JP 2012271921 A JP2012271921 A JP 2012271921A JP 2012271921 A JP2012271921 A JP 2012271921A JP 5969373 B2 JP5969373 B2 JP 5969373B2
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fuel injection
signal transmission
injection valve
valve housing
cylinder pressure
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JP2014118821A (en
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岳 佐藤
佐藤  岳
純一 福田
純一 福田
惠洋 金子
惠洋 金子
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株式会社ケーヒン
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Description

  The present invention relates to a fuel injection valve with an in-cylinder pressure sensor that is used in a direct injection internal combustion engine that directly injects into a combustion chamber and has a sensor that can detect the in-cylinder pressure in the combustion chamber.

  2. Description of the Related Art Conventionally, an internal pressure sensor is known at the tip of a fuel injection valve for the purpose of detecting the in-cylinder pressure of a combustion chamber in an internal combustion engine. This internal pressure sensor is disposed between the tip of the fuel injection valve and the mounting hole of the cylinder head constituting the internal combustion engine. The internal pressure sensor has a lead wire for transmitting the detected in-cylinder pressure as an output signal to the outside. Is connected. The lead wire is connected to, for example, an electronic control unit, and the in-cylinder pressure is output to the electronic control unit as an output signal, whereby control based on the in-cylinder pressure is performed (see, for example, Patent Document 1). ).

JP-A-9-53483

  However, in the internal pressure sensor attached to the fuel injection valve described above, the lead wire connecting the internal pressure sensor and the electronic control unit is exposed to the outside of the fuel injection valve. When assembled to the cylinder head together with the injection valve or in the assembled state, the lead wire may be disconnected due to a load, and there is a concern that the in-cylinder pressure cannot be detected due to the disconnection. Further, the connecting work of electrically connecting the lead wire to the internal pressure sensor and connecting the lead wire to the output terminal connected to the electronic control unit is complicated.

  The present invention has been made in consideration of the above-described problems, and can reliably and stably connect a signal transmission unit that connects a signal capable of detecting the in-cylinder pressure of a combustion chamber and a signal terminal, and the assembly thereof. An object of the present invention is to provide a fuel injection valve with an in-cylinder pressure sensor capable of improving workability.

In order to achieve the above object, the present invention provides a fuel with an in-cylinder pressure sensor having a sensor for detecting the in-cylinder pressure in the combustion chamber at the end of a fuel injection valve that directly injects fuel into the combustion chamber of the internal combustion engine. In the injection valve,
A valve housing that is disposed in the combustion chamber and has a valve body that switches an injection state of the fuel;
A sensor attached to the tip of the valve housing;
A solenoid unit that has a coil that is excited under an energization action, is connected to the valve housing, and generates a driving force that displaces the valve body under the excitation action of the coil;
A signal transmission unit that is provided on the outer peripheral side of the coil and the valve housing, and that connects the sensor and a signal terminal that outputs a signal based on the in-cylinder pressure to the outside;
Positioning means for performing relative positioning along the circumferential direction of the valve housing and the solenoid part;
It is characterized by providing.

  According to the present invention, when assembling the valve housing and the solenoid portion through the positioning means, it is possible to easily and reliably assemble in a positional relationship along the desired circumferential direction. In addition, the valve housing and the solenoid part are assembled with a displacement in the circumferential direction, and a load in the circumferential direction is applied to the signal transmission part that connects the signal terminal and the sensor. Is blocked. As a result, disconnection of the signal transmission part due to the circumferential displacement between the valve housing and the solenoid part is avoided, and the sensor and signal terminal are securely and stably connected by assembling the signal transmission part with high accuracy. can do.

  The positioning means is provided on the end face of the valve housing and the end face of the solenoid portion facing each other, and is formed on one of the end faces and protrudes along the axial direction, and is formed on the other end face of the axial direction. It is good to make it the recessed part where it dents along and the said protrusion is inserted. As a result, by moving the solenoid part and the valve housing in the axial direction so as to approach each other, the protrusion is inserted into the recess to easily perform positioning in the circumferential direction and to restrict relative rotational displacement. It can be carried out.

  Further, the protrusion and the recess are each formed with a hole along the axial direction. For example, when the valve housing and the solenoid are assembled, a positioning pin can be inserted into the hole. Therefore, the positioning of the valve housing and the solenoid portion in the circumferential direction can be performed with higher accuracy than in the case where positioning is performed by engaging the protrusion with the recess.

  Furthermore, it is good to form a protrusion or a recessed part in the end surface of the bobbin in which a coil is accommodated in a solenoid part.

  Furthermore, the signal transmission part includes a first signal transmission member provided on the outer peripheral side of the valve housing, and a second signal transmission member provided on the outer peripheral side of the coil in the solenoid part, and the valve housing by the positioning means and the The connection part of the first signal transmission member and the connection part of the second signal transmission member may be arranged in a straight line by positioning with the solenoid part and connected to each other. Thus, by assembling the valve housing and the solenoid part via the positioning means, the first signal transmission member and the second signal transmission member constituting the signal transmission part can be easily and reliably connected. Since the valve housing and the solenoid portion are not relatively rotationally displaced, the connection portion of the first signal transmission member and the connection portion of the second signal transmission member are shifted in the circumferential direction and disconnected. That is blocked.

  According to the present invention, the following effects can be obtained.

  That is, the fuel injection valve having a sensor at the tip includes a solenoid part having a coil that is excited under energization and a valve housing connected to the solenoid part, and the valve housing and the outer peripheral side of the coil, A signal transmission part for connecting a signal terminal and a sensor is provided, and when the solenoid part and the valve housing are assembled, relative positioning along a circumferential direction is performed by positioning means, thereby the valve housing and the sensor The solenoid part can be easily and reliably assembled in a positional relationship along a desired circumferential direction, and the assembling workability can be improved. Further, since the valve housing and the solenoid portion are prevented from being assembled in the circumferential direction, the load on the signal transmission portion is suppressed and disconnection or the like is avoided, so that the sensor and the signal terminal are reliably and stably connected. Can be connected to each other.

It is a partial cross section front view of the fuel injection valve with a cylinder pressure sensor which concerns on embodiment of this invention. 2A is an enlarged cross-sectional view showing the vicinity of the solenoid portion of FIG. 1, and FIG. 2B is an exploded cross-sectional view showing a state before the solenoid portion of FIG. 2A is assembled to the flange portion of the valve housing. It is the top view which looked at the bobbin which comprises the solenoid part of FIG. 1 from the front end surface side. It is a disassembled perspective view which shows the disassembled state which spaced apart the solenoid part and valve housing of FIG. 1 in the axial direction.

  The fuel injection valve with an in-cylinder pressure sensor according to the present invention will be described in detail below with reference to the accompanying drawings by giving preferred embodiments. In FIG. 1, reference numeral 10 indicates a fuel injection valve with an in-cylinder pressure sensor according to an embodiment of the present invention.

  As shown in FIG. 1, the fuel injection valve 10 with an in-cylinder pressure sensor (hereinafter simply referred to as a fuel injection valve 10) includes a housing 12, a solenoid portion 14 provided at the front end of the housing 12, and the solenoid portion 14. A fuel injection section 16 provided at the distal end of the housing 12, a fuel supply section 18 provided at the proximal end of the housing 12 to which fuel is supplied, a sensor 20 attached to the distal end of the fuel injection section 16, and an electronic control (not shown) A signal transmission unit 24 that electrically connects a signal terminal 22 connected to a unit (ECU) and the sensor 20 to transmit an output signal is included.

  Hereinafter, the fuel supply unit 18 side of the fuel injection valve 10 will be described as the base end side (arrow A direction), and the fuel injection unit 16 side will be described as the front end side (arrow B direction).

  The housing 12 includes a main body portion 26 and a coupler 28 protruding laterally from the base end of the main body portion 26, and the fuel supply portion 18 is provided at the base end of the main body portion 26. The fuel supply unit 18 includes, for example, a supply passage (not shown) through which fuel is supplied, and supplies the fuel supplied through a fuel pipe (not shown) from the supply passage to the fuel injection unit 16 side. Further, a connector (not shown) connected to an electronic control unit (not shown) is detachably attached to the coupler 28.

  As shown in FIGS. 1 and 2A, the solenoid unit 14 includes a cylindrical coil housing 30, a bobbin 32 housed in the coil housing 30, a coil 34 wound around the bobbin 32, A movable core (not shown) that is displaced under the exciting action of the coil 34 is provided, and the proximal end of the coil housing 30 is connected to the distal end of the housing 12.

  As shown in FIGS. 1 to 4, a plurality of (for example, four) protrusions 36 that protrude along the axial direction (arrow B direction) are formed on the tip surface 32 a of the bobbin 32. 36 are formed, for example, so as to have a circular cross section and are spaced apart from each other at equal intervals along the circumferential direction of the bobbin 32 (see FIG. 3). Further, pin holes 38 formed along the axial direction (directions of arrows A and B) are formed at the centers of the protrusions 36, respectively. The pin hole 38 is formed at a predetermined depth from the distal end of the protrusion 36 toward the proximal end side, and is formed at a depth that does not penetrate to the coil storage portion 40 around which the coil 34 is wound (see FIG. 2A and FIG. 2A). (See FIG. 2B).

  On the other hand, as shown in FIG. 1, a terminal support portion 42 is formed on the base end side of the bobbin 32, and the distal ends of the pair of power supply terminals 44 and the signal terminals 22 are held. Thereby, the power supply terminal 44 is electrically connected to the coil 34 via the terminal support portion 42. On the other hand, the proximal end sides of the power supply terminal 44 and the signal terminal 22 protrude from the inner wall surface inside the coupler 28 and a part thereof is exposed to the outside.

  Then, by connecting a connector (not shown) to the coupler 28, each power supply terminal 44 and the signal terminal 22 are connected to the electronic control unit, and the coil 34 is connected by energizing the power supply terminal 44 from the electronic control unit. Magnetic force is generated by excitation. As a result, the movable core is displaced inside the bobbin 32 under the excitation action of the coil 34, and a valve body (not shown) provided in the fuel injection section 16 is sucked and opened.

  The fuel injection unit 16 includes a valve housing 46 connected to the tip of the solenoid unit 14 and a valve body (not shown) built in the tip of the valve housing 46. Fuel is supplied from the supply unit 18, and the valve body moves toward the base end side (in the direction of arrow A) under the excitation action of the solenoid unit 14, whereby the fuel is injected from the tip into the combustion chamber at a predetermined pressure.

  The valve housing 46 is made of, for example, a metal material, and a flange portion 48 that closes the distal end of the solenoid portion 14 and a cylinder that extends straight from the flange portion 48 toward the distal end side (in the direction of arrow B). The cylindrical sensor 20 is press-fitted and fitted to the outer peripheral side of the tip of the cylindrical portion 50.

  As shown in FIGS. 2A and 2B, the flange portion 48 has a plurality of recesses that are recessed toward the cylinder portion 50 side (arrow B direction) on the base end surface 48a on the solenoid portion 14 side (arrow A direction). 52 is formed, and the protrusions 36 of the bobbin 32 constituting the solenoid part 14 are respectively inserted into the recesses 52. That is, the recesses 52 are formed in a quantity corresponding to the quantity of the protrusions 36, and the positions thereof are also formed so as to correspond to the arrangement of the protrusions 36. The recess 52 is formed with a through hole 54 formed along the axial direction and penetrating the flange portion 48. When the protrusion 36 is inserted into the recess 52, the through hole 54 and the pin hole 38 are coaxial. It becomes the top (refer FIG. 2A).

  A positioning pin 56 is inserted into the through hole 54 from the front end surface side of the flange portion 48 on the cylinder portion 50 side, and is inserted into the through hole 54 and the pin hole 38.

  When the valve housing 46 and the solenoid part 14 are assembled, the plurality of protrusions 36 are respectively inserted into the recesses 52 to restrict relative rotational displacement between the valve housing 46 and the solenoid part 14. A second signal transmission member 62 (described later) housed in the coil housing 30 and a first signal transmission member 60 provided on the outer peripheral side of the valve housing 46 are connected in a positioned state.

  As shown in FIG. 1, the sensor 20 includes, for example, a piezoelectric element (not shown) therein, and a connection terminal (not shown) connected to the piezoelectric element is on the base end side (in the direction of arrow A). It extends to. Further, a holding portion 58 of a cover member 68 described later contacts the outer peripheral surface of the sensor 20.

  For example, the inner peripheral side of the tip of the sensor 20 is coupled to the valve housing 46 by welding all around.

  The signal transmission unit 24 is provided on the outer peripheral side of the valve housing 46 and is housed in the first signal transmission member 60 connected to the sensor 20 and the coil housing 30 of the solenoid unit 14. 2nd signal transmission member 62 which connects terminal 22 is included.

  The first signal transmission member 60 is formed, for example, in a cylindrical shape from a resin material, and the insulator 64 provided on the outer peripheral side of the tube portion 50 in the valve housing 46 and the first conductivity provided in the insulator 64. Layer 66. A cover member 68 is attached to the outer peripheral side of the insulator 64.

  The insulator 64 is made of, for example, a resin material such as a heat-resistant resin, and is formed in a shape corresponding to the valve housing 46. The insulator 64 is formed in the first position at the center of the thickness in the radial direction. A conductive layer 66 is provided. The first conductive layer 66 is made of, for example, a plating layer, is formed in a cylindrical shape along the insulator 64 with a substantially constant thickness, and is molded.

  Further, the tip of the insulator 64 is press-fitted into the sensor 20 together with the cylindrical portion 50 of the valve housing 46, and the tip of the first conductive layer 66 is exposed through an annular groove formed in the outer peripheral surface near the tip. The sensor 20 is electrically connected to the connection terminal.

  The cover member 68 is formed in a cylindrical shape from, for example, a metal material, and the base end side (in the direction of arrow A) is expanded so as to cover the cylindrical portion 50 and the flange portion 48 corresponding to the shape of the valve housing 46. It is formed. A holding portion 58 that holds the outer peripheral surface of the base end side of the sensor 20 is formed at the distal end of the cover member 68. In the space formed between the holding portion 58 and the insulator 64, the sensor 20 And the first conductive layer 66 of the first signal transmission member 60 are electrically connected by solder or the like.

  The second signal transmission member 62 is formed of, for example, a resin material and has a plate shape having a predetermined length along the axial direction (arrows A and B directions). The second conductive layer 70 thus formed is formed. The second conductive layer 70 is formed of, for example, a plating layer, and extends from the distal end to the proximal end along the axial direction (arrow A, B direction) of the second signal transmission member 62 with a substantially constant thickness. Yes.

  The distal end of the second signal transmission member 62 has a first connecting portion (connecting portion) 72 having a small diameter with respect to the proximal end side, and the first connecting portion 72 has an outer peripheral surface along the outer peripheral surface thereof. A part of the second conductive layer 70 is exposed in an annular shape. The first signal transmission member 60 is inserted into the connection hole (connection part) 74 formed at the base end of the first signal transmission member 60 and electrically connected by solder or the like. The sensor 20 and the second signal transmission member 62 are electrically connected via each other. As a result, the first signal transmission member 60 and the second signal transmission member 62 constituting the signal transmission unit 24 are arranged in a straight line via the connection hole 74 and the first connection unit 72.

  On the other hand, a second connection portion 76 protruding in a direction orthogonal to the axis is formed at the base end of the second signal transmission member 62, one end of which abuts on the tip of the signal terminal 22, and the other end is the coil housing. It is provided so as to contact the inner peripheral surface of 30. The second connection portion 76 is formed in a cylindrical shape having a hole therein, and is provided so that the base end side of the second conductive layer 70 is exposed on the side surface facing the signal terminal 22. Then, one end portion of the second connection portion 76 is electrically connected by solder or the like in a state where the one end portion is in contact with the signal terminal 22 via the second conductive layer 70. Accordingly, the sensor 20 and the signal terminal 22 are electrically connected to each other via the first and second signal transmission members 60 and 62.

  In the above description, the signal transmission unit 24 includes the first signal transmission member 60 having the first conductive layer 66 and the second signal transmission member 62 having the second conductive layer 70. Although described, it is not limited to this, For example, instead of the said 1st and 2nd conductive layers 66 and 70, as a signal transmission part which has the conducting wire for connecting the signal terminal 22 and the sensor 20 Also good.

  The fuel injection valve 10 according to the embodiment of the present invention is basically configured as described above. Next, a case where the valve housing 46 and the solenoid unit 14 are assembled will be described. Note that a state in which the housing 12 is connected in advance to the proximal end side (arrow A direction) of the solenoid portion 14 will be described as an initial state.

  First, in this initial state, as shown in FIG. 4, the second signal transmission member provided inside the coil housing 30, with the proximal end side of the solenoid portion 14 facing the flange portion 48 of the valve housing 46. 62 is arranged so as to face the connection hole 74 formed in the flange portion 48. Further, as shown in FIG. 2B, positioning pins 56 are respectively inserted into the through holes 54 of the flange portion 48 from the distal end surface on the cylinder portion 50 side, and the end portions thereof with respect to the proximal end surface 48 a of the flange portion 48. And projecting a predetermined length.

  Next, the protrusion 36 of the solenoid portion 14 is moved closer to the valve housing 46 (in the direction of arrow B) so as to be in line with the recess 52 of the flange portion 48, and as shown in FIG. 2A, the protrusion At the same time as 36 is inserted into the recess 52, the positioning pin 56 is inserted into the pin hole 38. As a result, the solenoid portion 14 is positioned in the circumferential direction with respect to the valve housing 46, and the relative rotational displacement of the solenoid portion 14 is restricted and positioned. The distal end of the second signal transmission member 62 is inserted into the connection hole 74 of the valve housing 46 and connected to the proximal end of the first signal transmission member 60.

  In other words, the projection 36 of the solenoid part 14 and the recess 52 of the valve housing 46 function as positioning means for positioning the solenoid part 14 relative to the valve housing 46 along the circumferential direction.

  Finally, after confirming that the solenoid portion 14 is assembled to the flange portion 48 of the valve housing 46, the positioning pin 56 is removed so as to be separated from the flange portion 48 (see FIG. 1). That is, the positioning pin 56 is used only when the valve housing 46 and the solenoid unit 14 are assembled, and is removed after the assembly.

  As described above, the plurality of protrusions 36 are provided on the distal end surface 32a of the bobbin 32 constituting the solenoid portion 14, while the plurality of recesses 52 are formed on the proximal end surface 48a of the flange portion 48 in the valve housing 46 to which the solenoid portion 14 is assembled. When the solenoid part 14 is assembled to the valve housing 46, the protrusion 36 is inserted into the recess 52, so that relative rotational displacement can be regulated easily and reliably, and in the circumferential direction. It becomes possible to assemble in a positioned state. As a result, the assembly workability can be improved, and the first signal transmission member 60 provided on the outer peripheral side of the valve housing 46 and the second signal transmission member 62 provided on the solenoid unit 14 are circumferentially connected. Therefore, the sensor 20 and the signal terminal 22 can be reliably and stably connected by connecting the first and second signal transmission members 60 and 62 easily and reliably. Is done.

  In other words, since the solenoid portion 14 is prevented from being assembled in the circumferential direction (rotation direction) with respect to the valve housing 46, the second signal transmission member 62 and the first signal transmission member 62 caused by the erroneous assembly are prevented. Contact failure with the signal transmission member 60 is reliably prevented.

  Further, since the protrusion 36 of the bobbin 32 constituting the solenoid portion 14 and the recess 52 of the valve housing 46 are always engaged in the assembled state, for example, after being assembled to the valve housing 46 and the solenoid portion 14, Even when a load in the circumferential direction (rotation direction) is applied for some reason, they are not displaced in the circumferential direction, and the occurrence of disconnection or the like in the signal transmission unit 24 is reliably prevented. As a result, even in the assembled state of the fuel injection valve 10, the connection state of the first and second signal transmission members 60 and 62 constituting the signal transmission unit 24 is reliably and stably maintained.

  Further, when positioning is performed by engaging the protrusion 36 and the recess 52 by inserting the positioning pin 56 into the center of the protrusion 36 and the recess 52 through the pin hole 38 and the through hole 54 for positioning. On the other hand, it is possible to position the valve housing 46 and the solenoid part 14 in the circumferential direction with higher accuracy, and accordingly, the first signal transmission member 60 and the second signal transmission member that constitute the signal transmission part 24. Connection with 62 can be performed with higher accuracy.

  In the above-described embodiment, a configuration has been described in which the protruding portion 36 formed in a convex shape is provided on the distal end surface 32 a of the bobbin 32 and the recessed portion 52 is formed in the flange portion 48 of the opposing valve housing 46. However, the present invention is not limited to this. For example, a protrusion projecting toward the solenoid portion 14 side is provided on the proximal end surface 48a of the flange portion 48, and conversely, a valve housing is provided on the distal end surface 32a of the bobbin 32. You may make it provide the recessed part depressed toward the direction away from 46. FIG. That is, the protrusion 36 is provided on one of the flange portion 48 of the valve housing 46 and the front end surface 32a of the bobbin 32, and the recess 52 is provided on the other of the flange portion 48 and the bobbin 32 on the opposite side. And the recess 52 may be configured to engage with each other.

  Next, the operation of the fuel injection valve 10 assembled as described above will be briefly described.

  During operation of the internal combustion engine, the coil 34 is energized from the power supply terminal 44 of the fuel injection valve 10 by a control signal from an electronic control unit (not shown), and the coil 34 is excited to open the valve body of the fuel injection unit 16. The high-pressure fuel supplied to the supply passage of the fuel supply unit 18 is directly injected into the combustion chamber of the internal combustion engine via the fuel injection unit 16. At this time, the sensor 20 is given a pressure (in-cylinder pressure) in the combustion chamber, so that the piezoelectric element generates a voltage according to the pressure and outputs it as an output signal. This output signal is output to the electronic control unit via the first signal transmission member 60, the second signal transmission member 62, and the signal terminal 22, and is used for combustion control based on the pressure in the combustion chamber, for example.

  In addition, the fuel injection valve with an in-cylinder pressure sensor according to the present invention is not limited to the above-described embodiment, and it is needless to say that various configurations can be adopted without departing from the gist of the present invention.

DESCRIPTION OF SYMBOLS 10 ... Fuel injection valve with in-cylinder pressure sensor 12 ... Housing 14 ... Solenoid part 16 ... Fuel injection part 18 ... Fuel supply part 20 ... Sensor 22 ... Signal terminal 24 ... Signal transmission part 30 ... Coil housing 32 ... Bobbin 36 ... Projection part 38 ... Pin hole 44 ... Power supply terminal 46 ... Valve housing 48 ... Flange portion 52 ... Recess 54 ... Through hole 56 ... Positioning pin 60 ... First signal transmission member 62 ... Second signal transmission member 68 ... Cover member

Claims (5)

  1. In a fuel injection valve with an in-cylinder pressure sensor having a sensor for detecting the in-cylinder pressure in the combustion chamber at the end of the fuel injection valve that directly injects fuel into the combustion chamber of the internal combustion engine,
    A valve housing that is disposed in the combustion chamber and has a valve body that switches an injection state of the fuel;
    A sensor attached to the tip of the valve housing;
    A solenoid unit that has a coil that is excited under an energization action, is connected to the valve housing, and generates a driving force that displaces the valve body under the excitation action of the coil;
    A signal transmission unit that is provided on the outer peripheral side of the coil and the valve housing, and that connects the sensor and a signal terminal that outputs a signal based on the in-cylinder pressure to the outside;
    Positioning means for performing relative positioning along the circumferential direction of the valve housing and the solenoid part;
    A fuel injection valve with an in-cylinder pressure sensor.
  2. The fuel injection valve according to claim 1, wherein
    The positioning means is provided on the end face of the valve housing and the end face of the solenoid portion facing each other, and is formed on one end face and projecting along the axial direction, and on the other end face. A fuel injection valve with an in-cylinder pressure sensor, wherein the fuel injection valve comprises a recess recessed along the direction and into which the protrusion is inserted.
  3. The fuel injection valve according to claim 2, wherein
    A fuel injection valve with an in-cylinder pressure sensor, wherein a hole formed along the axial direction is formed in each of the protrusion and the recess.
  4. The fuel injection valve according to claim 2 or 3,
    The fuel injection valve with an in-cylinder pressure sensor, wherein the projecting portion or the recessed portion is formed on an end surface of a bobbin in which the coil is accommodated in the solenoid portion.
  5. The fuel injection valve according to any one of claims 1 to 4,
    The signal transmission unit includes a first signal transmission member provided on an outer peripheral side of the valve housing;
    A second signal transmission member provided on the outer peripheral side of the coil in the solenoid part;
    With
    The connection portion of the first signal transmission member and the connection portion of the second signal transmission member are arranged in a straight line by the positioning of the valve housing and the solenoid portion by the positioning means, and are connected to each other. A fuel injection valve with an in-cylinder pressure sensor.
JP2012271921A 2012-12-13 2012-12-13 Fuel injection valve with in-cylinder pressure sensor Active JP5969373B2 (en)

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JP6503190B2 (en) * 2015-01-20 2019-04-17 株式会社ケーヒン Fuel injection valve with in-cylinder pressure sensor

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JP3809919B2 (en) * 1995-06-09 2006-08-16 株式会社日立製作所 Cylinder internal pressure detector
GB0905224D0 (en) * 2009-03-26 2009-05-13 Delphi Tech Inc System for installation of an electrical cable
WO2012115036A1 (en) * 2011-02-25 2012-08-30 本田技研工業株式会社 In-cylinder pressure detecting device of direct injection type internal combustion engine
WO2013183306A1 (en) * 2012-06-08 2013-12-12 本田技研工業株式会社 Fuel injection device

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