DE102004004706A1 - Cable bushing and fuel system part with a cable bushing - Google Patents

Cable bushing and fuel system part with a cable bushing

Info

Publication number
DE102004004706A1
DE102004004706A1 DE200410004706 DE102004004706A DE102004004706A1 DE 102004004706 A1 DE102004004706 A1 DE 102004004706A1 DE 200410004706 DE200410004706 DE 200410004706 DE 102004004706 A DE102004004706 A DE 102004004706A DE 102004004706 A1 DE102004004706 A1 DE 102004004706A1
Authority
DE
Germany
Prior art keywords
holding
cone
fuel
recess
wire
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
DE200410004706
Other languages
German (de)
Inventor
Juergen Hanneke
Arzu Schilling
Bernd Streicher
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Priority to DE200410004706 priority Critical patent/DE102004004706A1/en
Publication of DE102004004706A1 publication Critical patent/DE102004004706A1/en
Withdrawn legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M63/00Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/0012Valves
    • F02M63/0014Valves characterised by the valve actuating means
    • F02M63/0015Valves characterised by the valve actuating means electrical, e.g. using solenoid
    • F02M63/0026Valves characterised by the valve actuating means electrical, e.g. using solenoid using piezoelectric or magnetostrictive actuators
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M47/00Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure
    • F02M47/02Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure of accumulator-injector type, i.e. having fuel pressure of accumulator tending to open, and fuel pressure in other chamber tending to close, injection valves and having means for periodically releasing that closing pressure
    • F02M47/027Electrically actuated valves draining the chamber to release the closing pressure
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M51/00Fuel-injection apparatus characterised by being operated electrically
    • F02M51/005Arrangement of electrical wires and connections, e.g. wire harness, sockets, plugs; Arrangement of electronic control circuits in or on fuel injection apparatus
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M61/00Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/16Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/166Selection of particular materials

Abstract

A cable bushing (41), in particular a high-pressure cable bushing for fuel systems, has an at least sectionally conical conical body (45, 46) and at least one holding body (55) connected to the conical body (45, 46). In this case, the holding body (55) comprises at least one passage opening (56). Furthermore, at least one electrically conductive wire (31, 32) is guided through the passage opening (56). The connection between the cone body (45) and the holding body (55) is sealingly formed and the wire (31, 32) is in the through hole (56) connected to the holding body (55) that the wire (31, 32) is held in the passage opening (56) and a seal of the passage opening (56) is reached. In addition, a fuel system part, in particular a fuel injection valve (1), with such a cable gland (41, 42) is indicated, which also comprises a component (12) which can be acted upon with fuel under high pressure.

Description

  • The The invention relates to a grommet, in particular a high-pressure cable bushing for fuel systems, and a fuel system part with such a grommet, in particular a fuel injector.
  • From the DE 40 05 455 A1 is a fuel injection valve with a piezoelectric actuator and an actuatable by means of a valve needle valve closing body, which cooperates with a valve seat surface to a sealing seat known. In this case, the actuator is arranged on the end of the fuel injection valve facing away from the discharge side and sealed against a fuel introduced laterally and in the direction of discharge below the spring diaphragm via a spring diaphragm extending over the cross section of the fuel injection valve. Therefore, the spring diaphragm divides the fuel injection valve into a fuel-filled discharge-side portion and a fuel-sealed portion in which the actuator is located. The sealed portion of the fuel injection valve has an electrical connection, via which an electrical supply line is guided to the drive element of the actuator. The electrical connection is inserted in a laterally mounted on the valve housing of the fuel injection valve bore.
  • A disadvantage of the DE 40 05 455 A1 known fuel injection valve is that the fuel can be introduced only via a laterally attached to the valve housing and lying in Abspritzrichtung below the spring diaphragm fuel inlet nozzle in the fuel injection valve. In particular, the fuel can not be introduced into the fuel injection valve via the end of the valve housing opposite the discharge side. Due to the unfavorable position of the fuel inlet nozzle, both the length and the diameter of the fuel injection valve is increased. In addition, the connection of a suitable fuel supply to the fuel inlet nozzle is made difficult.
  • That from the DE 40 05 455 A1 known fuel injection valve also has the disadvantage that the spring diaphragm forms a large cross-sectional area, so that due to the fuel pressure, a large force acts on the attachment points of the spring diaphragm. The known fuel injection valve is therefore unsuitable for high pressures, such as those required when injecting diesel fuel. But even at lower pressures may cause damage to the spring diaphragm, which is still promoted by the occurring during actuation of the fuel injection valve movements of the spring diaphragm on the side of the valve needle.
  • Another disadvantage of the from the DE 40 05 455 A1 known fuel injection valve is that the actuator is not protected against the parting line between the valve housing and the electrical connection penetrating substances. In addition, the connection of the electrical connection with an electrical contact of the actuator is complex, since the actuator is inserted via an end opening in the valve housing and the electrical connections are guided laterally to the actuator.
  • Advantages of invention
  • The inventive cable gland with The features of claim 1 has the advantage that there is a self-reinforcing seal training, i.e. a seal whose sealing effect with increasing load increases. The cable entry can be used in particular as high-pressure cable bushing for fuel systems, i.e. For example, in a pump, a fuel reservoir (Common Rail) or a fuel injection valve can be used. The Fuel system part according to the invention with the features of claim 10 has the advantage that through the Interaction of the cone body with the cone-shaped Recess of the component created a self-reinforcing seal is, the sealing effect increases with increasing exposure. Compared to the The prior art gives the further advantage that a universal applicable solution is created, which is a big one Flexibility, in particular with regard to the arrangement of the electrical connections and the fuel supply, guaranteed.
  • By those in the dependent claims 2 to 9 listed activities are advantageous developments of specified in claim 1 Grommet possible. By the in the dependent claim 11 specified measure is an advantageous development of specified in claim 10 Fuel system part possible.
  • In Advantageously, the cone body comprises an at least substantially axial or coaxial recess in which the holding body is arranged. As a result, the compact construction of the cable gland can be further improved and a uniform admission the seals formed are achieved.
  • Furthermore, it is advantageous that the recess of the cone body has at least one step on which the holding body is supported. As a result, even with a high loading of the holding body, For example, due to a very high fuel pressure, prevents a displacement of the holding body in the cone body.
  • Advantageous it is further, that in the recess of the cone body at least partially a Thread is provided, in which engages the holding body. Especially the thread may be provided at one end of the recess. The Thread can be easily formed in a bore of the cone body Beyond that offers the advantage that a reliable hold the holding body ensured becomes.
  • Further it is advantageous that the recess of the cone body a Conical bore is and that the holding body at least substantially conical is formed and inserted in the tapered bore of the cone body, wherein between the holding body and the cone body on the conical bore, a seal is formed. This will between the holding body and the cone body created a self-reinforcing seal on the conical bore, the sealing effect increases with increasing admission.
  • In Advantageously, the holding body is made of glass and the wire is melted into the holding body. This can e.g. be achieved in that in the cone body a introduced by glass coated wire, the parts over the temperature the yield point be heated by glass and then the soft glass on both sides in the cone bodies is pressed. Here, the flowable glass material adapts through the recess of the cone body predetermined shape, whereby the holding body is formed. It lays down the flowing glass material for example, around a paragraph or flows into a thread of the cone body. As the holding body the wire opposite isolated from the cone body, can the cone body be formed of a conductive material, e.g. a steel.
  • Advantageous it is there that the cone body at the required for melting the wire in the hollow body temperature changes at least the same size and preferably a larger expansion behavior like the holding body Has. As a result, the cone body preferably pulls on cooling stronger together as the vitreous body, so that the cone body after cooling a pressure on the holding body exercises.
  • Advantageous it is that the holding body and / or the cone body made of technical ceramics. In this case, the holding body and the cone body also from the same technical ceramics, in particular in one piece, formed be. The shape of the holding body and / or the cone body can then be done by molding in a mold and / or by grinding. The training of technical ceramics has the advantage that a good insulation of the wire is achieved and that a very high Compressive strength exists. Alternatively, the holding body and / or Cone body too from a plastic, in particular from a glass fiber reinforced plastic, be educated.
  • Advantageous it is that in the region of the passage opening of the holding body for Generation of a form-locking Connection between the wire and the holding body at least at one point a change the shape and / or the size of the cross-sectional area of the Wire is provided. For example, the wire on one or have several places compression or bruising. In addition, can the wire is at least partially ribbon-shaped, i. flat, trained be and have points where a twist of the band-shaped wire around its longitudinal axis, e.g. at 90 °. Thereby, the connection between the holding body and the wire is further improved and at least substantially prevents movement of the wire in the holding body.
  • Advantageous it is that the component of the fuel system part, in particular of the fuel injection valve, is formed of a hardened steel. As a result, a high strength of the component is achieved. Because the component Thus, it consists of a material that at least not insignificant increases in temperature partially changes its properties, that is, the component is made of a temperature-sensitive material is formed, in this a conical recess is incorporated, in the cable entry is used. The cable entry itself can be heated considerably during manufacture, e.g. to melt of the holding body, if it is made of glass, or for heating, in particular Baking, the holding body, if it is made of technical ceramics. The component can however, be temperature sensitive, e.g. the hardened steel would heat up when heated by hardening at least partially lose their achieved properties again. There however, the cable entry used in the component, can take advantage of the properties the different materials are combined. The same applies if the component is made of another temperature-sensitive material, e.g. from a plastic, in particular a hard and fuel-resistant plastic, is made.
  • drawing
  • Embodiments of the invention are shown in simplified form in the drawings and explained in more detail in the following description. It shows:
  • 1 a first embodiment of a fuel system part according to the invention in the form of a fuel injection valve in a sectional view;
  • 2 the in 1 section marked II;
  • 3 a cone body of a cable duct according to the invention according to the first embodiment;
  • 4 a cable bushing according to the invention according to the first embodiment and
  • 5 an inventive cable gland according to an alternative embodiment.
  • description the embodiments
  • 1 shows in an axial sectional view of an inventive fuel injector 1 trained fuel system part. The fuel injector 1 is used in particular for direct injection of fuel, in particular diesel fuel, in a combustion chamber of a self-igniting internal combustion engine as a so-called diesel injection valve. The fuel system part according to the invention may also be a fuel pump, a fuel storage chamber (common rail) or another fuel system part of a fuel system.
  • The fuel injector 1 has a first valve housing part 2 , a second valve housing part 3 and a third valve housing part 4 on. In this case, the third valve housing part 4 indirectly with the first valve housing part 2 through the second valve housing part 3 connected by the third valve housing part 4 by means of a thread 5 on the first valve housing part 2 is screwed, wherein the third valve housing part 4 on a heel 6 on the second valve housing part 3 supported.
  • The first valve body part 2 has an interior formed by a recess 10 in which an actuator consisting of at least one part 11 is provided. The actor 11 relies on the one hand on one foot 12 on the first valve housing part 2 from. The foot 12 is made of hardened steel, preferably a hardened alloyed steel. On the other side, the actuator is supported 11 on a head 13 from. The actor 11 , the foot 12 and the head 13 together form an actuator module.
  • In the interior 10 of the fuel injection valve 1 is during operation of the fuel injector 1 provided a fuel under high pressure. The pressure of the fuel may be 1600 to 2000 bar or more, especially when diesel fuel is used as the fuel. Due to the pressure of the fuel in the interior 10 works on the foot 12 a force in one direction 14 that the foot 12 against the first valve housing part 2 pressed. In this way, between the first valve housing part 2 and the foot 12 the actuator module formed a hard high-pressure seal, which manages without another sealant.
  • Upon actuation of the actuator 11 done by means of the head 13 an influence on the pressure in a control room 15 , leaving a nozzle needle 16 opened or closed.
  • The head 13 of the actuator module forms together with a coupler sleeve 17 , a spacer plate 18 , a control chamber sleeve 19 and the nozzle needle 16 a hydraulic coupler that can compensate for both different thermal expansions of the individual components as well as a translation of the stroke of the actuator 11 in the hub of the nozzle needle 16 allows.
  • So that's out of the actuator 11 the foot 12 and the head 13 existing actuator module the nozzle needle 16 can open, is in the control of the actuator 11 in the control room 15 a negative pressure difference to the surrounding interior 10 of the fuel injection valve 1 required. To prevent the foot 12 of the actuator module during actuation of the actuator 11 in the opposite direction 14 from the first valve housing part 2 lifts off, causing the high pressure seal between the foot 12 and the first valve housing part 2 would be open is a spring 20 provided, together with the high internal pressure in the interior 10 the high pressure seal between the foot 12 and the first valve housing part 2 maintains.
  • The one in the interior 10 provided actuator 11 is surrounded by fuel, which has a high pressure. To the actor 11 can seal against the fuel, the actuator 11 be surrounded by a sheath. The supply of electrical energy for actuating the actuator 11 is described below on the basis of 2 described in more detail.
  • 2 shows the in 1 labeled II section of the fuel injector 1 , Corresponding elements are provided in this and in all other figures with matching reference numerals, whereby a repetitive description is unnecessary.
  • The foot 12 will be against the surface 25 of the first valve housing part 2 for training the har high-pressure seal between the foot 12 and the first valve housing 2 pressed. In the interior 10 is the fuel that has a high pressure, eg from the range of 1600 bar to 2000 bar. A room 26 of the first valve housing part 2 of the fuel injection valve 1 by the high pressure seal from the interior 10 is essentially free of pressure, ie has approximately atmospheric pressure. This is the room 26 by means of an opening 27 of the first valve housing part 2 with the outside of the fuel injection valve 1 connected. In the room 26 In addition, two electrical lines (not shown) are guided, which supply the electrical energy for actuating the actuator 11 in the fuel injection valve 1 into conduct. The lines can eg through the openings 27 or through one of the openings 27 appropriate opening in the room 26 be guided. The one line is with a first wire 31 connected and the other line is with a second wire 32 connected. The first wire 31 extends into the interior 10 of the first valve housing part 2 of the fuel injection valve 1 and is at a contact point 33 with an electrical contact of the actuator 11 connected. The second wire is the same 32 in the interior 10 guided and at a contact point 34 with an electrical contact of the actuator 11 connected. Especially in the area of the interior 10 and at the contact points 33 and 34 can the wires 31 . 32 opposite to that in the interior 10 provided fuel be electrically isolated, for example by a coating of insulating and fuel-resistant paint. The for actuating the actuator 11 between the two wires 31 . 32 applied voltage can be eg 160 volts to 200 volts.
  • The foot 12 has a first stepped bore 35 and a second stepped bore 36 on. It is at least a section 37 the first stepped bore 35 and a section 38 the second stepped bore 36 cone-shaped. This is both the section 37 the first stepped bore 35 as well as the section 38 the second stepped bore 36 conically shaped, the two sections 37 and 38 to the room 26 rejuvenate.
  • Through the section 37 the first stepped bore 35 is a cone-shaped recess 39 in the foot 12 educated. Accordingly, through the section 38 the second stepped bore 36 a conical recess 40 in the foot 12 educated. At the foot 12 it is a component that is on the side of the interior 10 fuel is subjected to high pressure, wherein it is the conical recesses 39 and 40 having. In the conical recesses 39 and 40 are a first cable entry 41 and a second cable gland 42 used. The first cable entry 41 is below on the basis of 3 and 4 described in more detail. An alternative embodiment of the first cable gland 41 is based on the 5 described. The execution of the second cable gland 92 corresponds to the first cable gland 41 so that reference may be made to the description herein.
  • 3 shows a cone body 45 the first cable entry 41 , The cone body 45 has an outside 46 on whose circumference from a first end face 47 to a second end face 48 of the cone body 45 continuously decreases. This is the outside 46 of the cone body 45 conical, ie the cone body 45 is cone-shaped. The cone body 45 is in the in the 2 illustrated first stepped bore 35 in the area of the first section 37 used, ie in the conical recess 39 used. The shape of the outside 46 is the shape of the conical recess 39 adjusted so that between the outside 46 and the foot 12 in the area of the conical recess 39 a seal results.
  • The cone body 45 has an axial recess 50 on. The recess 50 Alternatively, it may also be designed such that its axis is offset parallel to the axis 51 of the cone body 45 oriented so that it is a coaxial recess 50 is. Depending on the particular application, it is also possible, however, the recess 50 so that their axis is opposite the axis 51 of the cone body 45 inclined or inclined and offset oriented.
  • In the embodiment of the cone body 45 is the recess 50 designed as a stepped bore. This shows the recess 50 of the cone body 45 a step 52 on.
  • Also, at the end of the cone body 45 on the side of the first front 47 lies, a thread 53 in the recess formed as a bore 50 intended.
  • The 4 shows an embodiment of the cable gland according to the invention 41 , The first cable entry 41 includes the in the 3 illustrated cone body 45 and one in the recess 50 provided holding body 55 , The holding body 55 has a passage opening 56 on, which is cylindrical and whose axis is parallel to the axis 51 of the cone body 45 is or agrees with this. The holding body 55 may be formed, for example, of glass. The first wire 31 extends through the passage opening 56 so he's on both the first front 47 as well as on the second front side 48 clearly above the cone body 45 and in the cone body 45 inserted holding body 55 protrudes.
  • The cable entry 41 can be made as follows. In the recess 50 of the cone body 45 becomes the first wire sheathed in glass 31 introduced, wherein the glass sheath has a diameter which is smaller than that of the recess 50 is, but the glass sheath is on the first end face 47 and / or on the second end face 48 further than in the 4 shown on the wire 31 extends. Then the cone body 45 , the holding body 55 and the first wire 31 ie the entire first cable entry 41 , above the yield strength of glass, for example, heated to 1000 ° C. This will be the first end 47 and / or on the second end face 48 protruding glass so applied that it is in the recess 50 is pressed into it. As a result, the glass also flows into the thread 53 and lay down around the step 52 of the cone body 45 , After cooling the first cable gland 41 grips the solidified holding body 55 in the thread 53 one. In addition, the solidified holding body is supported 55 at the stage 52 the recess 50 of the cone body 45 from. With regard to a pressurization of the holding body by the cone body 45 in the cooled state, it is advantageous that for the cone body 45 a suitably alloyed steel is used, which has a thermal expansion which is at least slightly greater than that of the glass holding body 55 , To be in the transition area between the wire 31 and the holding body 55 Avoiding stresses in the materials is the material of the first wire 31 chosen so that the thermal expansion of the holding body 55 roughly equivalent.
  • The first cable entry 41 is like in the 2 represented in the conical recess 39 of the foot 12 used. The one in the interior 10 Existing fuel therefore acts on the first cable bushing 41 at the first end 47 with a force arising from the surface of the first end face 47 and the pressure of the fuel in the interior 10 results. Thus, the first cable entry 41 in the direction of the at least approximately depressurized space 26 in the conical recess 39 pressed, leaving a self-reinforcing seal between the foot 12 and the first cable entry 41 at the conical recess 39 results.
  • The fuel pressure acts on the side of the first end face 47 also on the holding body 55 one, so this one too in the direction of the room 26 is pressed. In this case, the holding body is supported 55 both at the stage 52 as well as on the thread 53 of the first cone body 45 from. This can be the thread 53 also stepless, ie be formed in the form of grooves. Besides, it is possible that the thread 53 groove-shaped threads, that has threads with approximately rectangular cross-section, or that one or more annular grooves in the recess 50 are provided. Moreover, it is possible that only one of the described means for supporting the holding body 55 in the recess 50 of the cone body 45 is provided, especially only the thread 53 or just the level 52 in the recess 50 of the cone body 45 be provided.
  • In addition, due to the fuel pressure in the interior 10 also an admission of the first wire 31 take the wire 31 with a force in the direction of the room 26 applied. Here is the between the wire 31 and the holding body 55 in the area of the passage opening 56 existing frictional force for holding the first wire 31 in the passage opening 56 used.
  • The first cable entry 41 is in the cone-shaped recess 39 by pressing, gluing or the like. Attached. Alternatively, the first cable gland 41 in the conical recess 39 soldered, wherein the soldering takes place at low temperature to the properties of the material of the foot 12 at least essentially not to change, especially the hardness of the foot 12 to obtain. The diameter of the cone body 45 at the first end 47 is preferably chosen so that even with possible tolerances of the conical recess 39 and the cone body 45 the cone body 45 in that area 57 the outside 46 at the first end 47 at the conical recess 39 is applied. This means that despite tolerances of the cone body 45 always on the pressure side at the conical recess 39 is applied. This creates an additional from the pressure of the fuel in the interior 10 dependent radial sealing force.
  • To the surface roughness on the outside 46 of the cone body 45 and / or at the section 37 the conical recess 39 can balance the cone body 45 be coated with a suitable soft metal layer, such as nickel. As a result, the sealing effect is further improved.
  • 5 shows an alternative embodiment of a cable gland 41 , In this alternative embodiment, the recess is 50 of the cone body 45 also conical, wherein the diameter of the recess 50 from the first front 47 to the second end face 48 decreases. There is also a thread 53 intended. Due to the conical design of the recess 50 becomes an additional holding force for holding the holding body 55 in the cone body 45 upon application of the holding body 55 on the first front side 47 by the fuel pressure in the interior 10 generated. In addition, the first wire points 31 an agency 60 and a job 61 on which a change of shape and the size of the cross-sectional area of the first wire 31 is provided. In the in the 5 illustrated alternative embodiment is the cross section of the first wire in the places 60 . 61 enlarged, ie in the places 60 . 61 are upsets of the wire 31 intended. Alternatively it is also possible that in the places 60 . 61 Bruises are provided, or that the first wire 31 is formed band-shaped, wherein at the points 60 . 61 in each case a rotation of the first wire 31 around the axis 51 at an angle of eg 90 ° occurs. It is also a combination of the above options conceivable.
  • Through the holding body formed of glass 55 an insulator is formed, which ensures safe isolation even when required to drive the actuator voltages of eg 160 volts to 200 volts.
  • The described cable entry 41 can also be used for other arrangements by providing a preferably precise conical bore. The cable bushing according to the invention has the advantage that it can be standardized, cost-effective, easy to assemble, space-saving, storable storable, self-reinforcing and reliable.

Claims (11)

  1. Cable gland ( 41 ), in particular high pressure cable bushing for fuel system, with an at least partially conical tapered body ( 45 . 46 ), at least one with the cone body ( 45 . 46 ) connected holding body ( 55 ), the at least one passage opening ( 56 ), and at least one electrically conductive wire ( 31 . 32 ) passing through the passageway ( 56 ), wherein the connection between the cone body ( 45 ) and the holding body ( 55 ) is formed sealed and wherein the wire ( 31 . 32 ) in the passage opening ( 56 ) with the holding body ( 55 ) is connected so that the wire ( 31 . 32 ) in the passage opening ( 56 ) is held and a seal of the passage opening ( 56 ) is reached.
  2. Cable bushing according to claim 1, characterized in that the cone body ( 45 ) at least one at least substantially axial or coaxial recess ( 50 ), in which the holding body ( 55 ) is arranged.
  3. Cable bushing according to claim 2, characterized in that the recess ( 50 ) of the cone body ( 45 ) at least one stage ( 52 ), on which the holding body ( 55 ) is supported.
  4. Cable bushing according to claim 2 or 3, characterized in that in the recess ( 50 ) of the cone body ( 45 ) at least in sections, in particular at one end of the recess ( 50 ), a thread ( 53 ) is provided, in which the holding body ( 55 ) intervenes.
  5. Cable bushing according to one of claims 2 to 4, characterized in that the recess ( 50 ) of the cone body ( 45 ) is formed at least substantially conical and that the holding body ( 55 ) at least substantially conical and in the conical recess ( 50 ) of the cone body ( 45 ) is inserted, wherein between the holding body ( 55 ) and the cone body ( 45 ) at the conical recess ( 50 ) A seal is formed.
  6. Cable bushing according to one of claims 1 to 5, characterized in that the holding body ( 55 ) is formed of glass and that the wire ( 31 . 32 ) in the holding body ( 55 ) is melted down.
  7. Cable bushing according to claim 6, characterized in that the cone body ( 45 ) at the meltdown of the wire ( 31 . 32 ) in the holding body ( 55 ) required temperature changes at least a same expansion behavior as the holding body ( 55 ) Has.
  8. Cable bushing according to one of claims 1 to 5, characterized in that the holding body ( 55 ) and / or the cone body ( 45 ) is formed of technical ceramics.
  9. Cable bushing according to one of claims 1 to 8, characterized in that in the region of the passage opening ( 56 ) of the holding body ( 55 ) for creating a positive connection between the wire ( 31 . 32 ) and the holding body ( 55 ) at least at one point ( 60 . 61 ) a change in the shape and / or size of the cross-sectional area of the wire ( 31 . 32 ) is provided.
  10. Fuel system part, in particular fuel injection valve ( 1 ), with at least one cable gland ( 41 . 42 ) according to one of claims 1 to 9 and at least one component ( 12 ), which can be acted upon by fuel under high pressure, wherein the component ( 12 ) a conical recess ( 39 . 40 ) into which the cable gland ( 41 . 42 ) is inserted, and wherein the cone body ( 45 ) of the cable feedthrough ( 41 . 42 ) with the component ( 12 ) at the conical recess ( 39 . 40 ) forms a seal.
  11. Fuel system part according to claim 10, characterized in that the component ( 12 ) is formed of a hardened steel.
DE200410004706 2004-01-30 2004-01-30 Cable bushing and fuel system part with a cable bushing Withdrawn DE102004004706A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE200410004706 DE102004004706A1 (en) 2004-01-30 2004-01-30 Cable bushing and fuel system part with a cable bushing

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE200410004706 DE102004004706A1 (en) 2004-01-30 2004-01-30 Cable bushing and fuel system part with a cable bushing
JP2006521394A JP4320035B2 (en) 2004-01-30 2004-11-19 Cable penetration guide and fuel system part with cable penetration guide
PCT/DE2004/002557 WO2005073547A1 (en) 2004-01-30 2004-11-19 Cable leadthrough and fuel system part with a cable leadthrough
EP04802770.0A EP1714024B1 (en) 2004-01-30 2004-11-19 Fuel system part with a cable leadthrough
CNB2004800411075A CN100532822C (en) 2004-01-30 2004-11-19 Cable leadthrough and fuel system part with a cable leadthrough

Publications (1)

Publication Number Publication Date
DE102004004706A1 true DE102004004706A1 (en) 2005-08-18

Family

ID=34801271

Family Applications (1)

Application Number Title Priority Date Filing Date
DE200410004706 Withdrawn DE102004004706A1 (en) 2004-01-30 2004-01-30 Cable bushing and fuel system part with a cable bushing

Country Status (5)

Country Link
EP (1) EP1714024B1 (en)
JP (1) JP4320035B2 (en)
CN (1) CN100532822C (en)
DE (1) DE102004004706A1 (en)
WO (1) WO2005073547A1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1758237A1 (en) * 2005-08-22 2007-02-28 Robert Bosch Gmbh Arrangement comprising a piezoelectric actuator and a method of its manufacture
DE102006018916A1 (en) * 2006-04-24 2007-10-25 Siemens Ag Fluid e.g. fuel, injector`s metallic body for internal combustion engine of motor vehicle, has electrical conductors led through ceramic bodies that are fastened to recesses by hard solder joints, and grooves formed outside recesses
EP1962351A1 (en) 2007-02-22 2008-08-27 Robert Bosch Gmbh Piezoelectric actuator module with a cable feedthrough
DE102007027665A1 (en) 2007-06-15 2008-12-18 Robert Bosch Gmbh Piezo actuator module with cable glands and a method for its production
DE102008035087B4 (en) * 2008-07-28 2015-02-12 Continental Automotive Gmbh Injector
DE102009044604B4 (en) 2008-11-21 2019-12-19 Denso Corporation injection

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DE102005045230A1 (en) * 2005-09-22 2007-03-29 Robert Bosch Gmbh Arrangement with a piezoelectric actuator and a method for its production
JP4569558B2 (en) * 2006-03-06 2010-10-27 株式会社デンソー Injector
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DE102008003838A1 (en) * 2008-01-10 2009-07-16 Robert Bosch Gmbh Piezoelectric actuator and piezoelectric injector and a method for producing a piezoelectric actuator
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CN103928887A (en) * 2013-01-16 2014-07-16 珠海格力电器股份有限公司 Penetrating device and air conditioner with same

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1758237A1 (en) * 2005-08-22 2007-02-28 Robert Bosch Gmbh Arrangement comprising a piezoelectric actuator and a method of its manufacture
DE102006018916A1 (en) * 2006-04-24 2007-10-25 Siemens Ag Fluid e.g. fuel, injector`s metallic body for internal combustion engine of motor vehicle, has electrical conductors led through ceramic bodies that are fastened to recesses by hard solder joints, and grooves formed outside recesses
EP1962351A1 (en) 2007-02-22 2008-08-27 Robert Bosch Gmbh Piezoelectric actuator module with a cable feedthrough
DE102007008618A1 (en) 2007-02-22 2008-08-28 Robert Bosch Gmbh Piezo actuator module with a cable feedthrough
DE102007027665A1 (en) 2007-06-15 2008-12-18 Robert Bosch Gmbh Piezo actuator module with cable glands and a method for its production
DE102008035087B4 (en) * 2008-07-28 2015-02-12 Continental Automotive Gmbh Injector
DE102009044604B4 (en) 2008-11-21 2019-12-19 Denso Corporation injection

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CN100532822C (en) 2009-08-26
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JP2007500302A (en) 2007-01-11
CN1906398A (en) 2007-01-31

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