CN101988451A - High pressure connection and connection arrangement - Google Patents

High pressure connection and connection arrangement Download PDF

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Publication number
CN101988451A
CN101988451A CN2010102434454A CN201010243445A CN101988451A CN 101988451 A CN101988451 A CN 101988451A CN 2010102434454 A CN2010102434454 A CN 2010102434454A CN 201010243445 A CN201010243445 A CN 201010243445A CN 101988451 A CN101988451 A CN 101988451A
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CN
China
Prior art keywords
face
high pressure
accumulator
pressure joint
equipment
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Granted
Application number
CN2010102434454A
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Chinese (zh)
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CN101988451B (en
Inventor
埃德温·富拉格
格哈德·亨格尔
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Wartsila NSD Schweiz AG
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Wartsila NSD Schweiz AG
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Publication of CN101988451A publication Critical patent/CN101988451A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M47/00—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure
    • F02M47/02—Fuel-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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L9/00—Valve-gear or valve arrangements actuated non-mechanically
    • F01L9/10—Valve-gear or valve arrangements actuated non-mechanically by fluid means, e.g. hydraulic
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M47/00—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure
    • F02M47/04—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure using fluid, other than fuel, for injection-valve actuation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
    • F02M55/004—Joints; Sealings
    • F02M55/005—Joints; Sealings for high pressure conduits, e.g. connected to pump outlet or to injector inlet
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
    • F02M55/02—Conduits between injection pumps and injectors, e.g. conduits between pump and common-rail or conduits between common-rail and injectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/95—Fuel injection apparatus operating on particular fuels, e.g. biodiesel, ethanol, mixed fuels

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)

Abstract

The present invention provides a high pressure connection which is used for connecting a device (3) that is operated through pressurized fluid to a pressure accumulator (2) used for the fluid, wherein, the pressure accumulator is provided with at least one connection hole (23) which is communicated with a supporting surface (24). The high pressure connection comprises a body (11). The body extends from a first end surface (12) to a second end surface (13) in a direction of a longitudinal axis (A), wherein, the first end surface (12) is suitable for hermetically cooperating with the supporting surface (24) and is provided with an inlet (14). Furthermore, the second end surface (13) is suitable for being received by the device (3) and is provided with an outlet (16). The outlet is connected with the inlet (14) through a through hole (15). The second end face (13) is provided with an action surface which is used for fluid. The action surface of the second end surface (13) is larger than that of the first end surface (12). Additionally, a receiving device and a large-scale diesel are provided.

Description

High pressure joint and connection set
Technical field
The present invention relates to according to the high pressure joint of the preamble of the independent claims of corresponding kind and connection set with accumulator.And, the large-scale diesel engine that the present invention relates to have this high pressure joint and/or have this connection set.
Background technique
In the equipment that must under high pressure guide fluid (particularly liquid), must stand high pressure and must need link between each parts of anti-leak.As an embodiment, here large-scale diesel engine will be discussed, this large-scale diesel engine can be made into two strokes or four-stroke engine, and is often used as the driver element of boats and ships or also is used for static operation, for example, drive the high-rating generator that is used to produce electric energy.
In the large-scale diesel engine in modern times, there are two kinds of media of under high pressure very, carrying particularly; On the one hand for be transported to the fuel of nozzle with the pressure that surpasses 1000bar, on the other hand for being commonly referred to as the hydraulic medium of servo oil.Hydraulic medium for example is used for the hydraulic actuating of outlet valve.These media are transported in the accumulator by pump, and accumulator is formed into pressure tube, and extend along the entire cylinder zone usually.Medium moves to injecting-unit or moves to control and/or the manipulator that is used for hydraulic unit from these accumulators (it also is known as energy-storing device).
Accumulator and need joint between the equipment of medium usually based on screwed union in screwed union, directly is screwed in equipment on the wall of accumulator or on the high-tension line, described high-tension line is squeezed in the corresponding exit orifice of accumulator hermetically by screw thread.Also known welded joint or soldered joint.
Summary of the invention
The object of the present invention is to provide a kind of different, simple in structure and reliable high pressure joint,, pressurized liquid can be transported to described equipment from accumulator by this high pressure joint.In addition, provide such connection set.Concrete is that described high pressure joint is suitable for using in large-scale diesel engine.
The theme that satisfies these purposes of the present invention is characterised in that the feature of the independent claims of corresponding kind.
Therefore, according to the present invention, a kind of high pressure joint is provided, this high pressure joint is used for and will be connected to the accumulator that is used for described fluid by the charging fluid apparatus operating, wherein, described accumulator has at least one attachment hole that leads to seating plane, this high pressure joint comprises main body, this main body extends to second end face from first end face on the direction of longitudinal axis, wherein, described first end face is suitable for cooperating with described seating plane sealing and having import, and wherein, described second end face is suitable for being received by described equipment, and has outlet, and this outlet is connected with described import by through hole.Described second end face has the action face that is used for described fluid, and this action face is greater than the action face of described first end face.
Aspect this, described action face represents that corresponding end-faces is in the vertical projection (that is, decision acts on the surface of the power on the end face because of fluid) that is positioned on the plane vertical with longitudinal axis.Because the action face of second end face is greater than the action face of first end face, but it is basic identical on two end faces by the fluid applied pressure, therefore, under serviceability, because of fluid acts on power on second end face greater than the power that acts on first end face, thereby high pressure joint is squeezed in the described seating plane its first end face hermetically.Therefore, can realize high pressure anti-leak joint by charging fluid sealing.In principle, the sealing function neither needs screwed union also not need welded joint.
Preferably, described first end face is made for conical surface or frusto-conical surface.By this geometrical shape of described first end face, can realize good especially seal action with the accumulator joint.
Advantageously, described second end face is made for circular surface.On the one hand, this makes simple structure, and in the pre-action face maximum that regularly makes second end face of the diameter of second end face.
In addition, the invention provides a kind of connection set, this connection set has: accumulator, and this accumulator is used for the fluid of supercharging; Equipment, this equipment is by described fluid-operated; And high pressure joint, described fluid can arrive described equipment from described accumulator by this high pressure joint, wherein, described accumulator has an attachment hole that leads to seating plane at least, wherein, described high pressure joint comprises main body, this main body extends to second end face from first end face on the direction of longitudinal axis, wherein, described first end face is suitable for cooperating with described seating plane sealing and having import, and wherein, described second end face is suitable for by described equipment reception and has outlet, and this outlet is connected with described import by through hole, wherein, described high pressure joint makes its first end face contact with described seating plane, and its second end face is contacted with described equipment, makes described fluid to flow to the described equipment from described accumulator by the described through hole of described high pressure joint.Described second end face has the action face that is used for described fluid, and this action face is greater than the action face of described first end face.
In this connection set, the sealing between high pressure joint and the accumulator mainly realizes by the pressure of fluid on second end face.Since its action face greater than the action face of first end face, therefore form with first end face seal press the power of the seating plane of described accumulator.
In important application in practice, described accumulator is made for pressure tube.
Advantageously textural, described equipment is fastened to described accumulator in the normal operating position side direction.Therefore can avoid the pressure beat (pressure beats) that (for example by opening, close or switching valve) produces under the serviceability of equipment to cause power is introduced in the pressure line.
Favourable in addition measure is to be provided with the assembling set around described accumulator, and wherein, described high pressure joint is attached to this assembling set.Can avoid high pressure joint to have to directly downward bolt in the wall of accumulator thus.
Advantageously, described second end face of described high pressure joint is arranged in the hole of described equipment.By this measure, can make fluid can on second end face, apply good especially pressure.
Advantageously, described high pressure joint does not have threadably reception by described equipment, thereby described power is delivered to first end face from second end face ideally.
In advantageous applications, described accumulator is to be used for the hydraulic medium of large-scale diesel engine or the pressure tube of fuel.
In addition, by the invention provides a kind of large-scale diesel engine, this large-scale diesel engine has according to high pressure joint of the present invention or has according to connection set of the present invention.
Preferably, described accumulator is to be used for the hydraulic medium of large-scale diesel engine or the pressure tube of fuel, and wherein, described pressure tube is by described device support, and wherein, described pressure tube is fastened to described equipment in described normal operating position side direction.That is, the pressure beat in the realization equipment is transmitted in its support device thus, and they can not cause bigger power is introduced in the pressure tube.
Xiang Guan application in practice is especially, and equipment is when being used for the valve control unit, VCU of hydraulic actuating of outlet valve.
Dependent claims constitutes other advantage of the present invention and preferred implementation.
Description of drawings
With reference to mode of execution and accompanying drawing the present invention is described in further detail below.In the schematic representation of not drawn on scale, partly illustrate with sectional view, in the accompanying drawing:
Fig. 1 illustrates first mode of execution according to connection set of the present invention, and this connection set has the mode of execution according to high pressure joint of the present invention;
Fig. 2 illustrates the mode of execution according to large-scale diesel engine of the present invention, and this diesel engine has second mode of execution according to connection set of the present invention; And
Fig. 3 is the sectional view along second mode of execution of the cutting line III-III of Fig. 2.
Embodiment
Fig. 1 shows the sectional view according to first mode of execution of connection set of the present invention, and this connection set is marked with reference character 10 on the whole, and comprises the mode of execution according to high pressure joint of the present invention, and this high pressure joint is marked with reference character 1 on the whole.And connection set 10 comprises accumulator 2 that is used for fluid and the equipment 3 that only concisely illustrates, and this equipment 3 is fluid-operated by supercharging.
Fluid can be any gaseous state or the liquid medium that can use in the working procedure under the pressure, for example, is used for the hydraulic operation of piston, valve etc. or the hydraulic oil or the servo oil of actuating; Be used for being injected into the fuel of the cylinder of internal-combustion engine; The perhaps water that must under pressure, carry.
Equipment 3 can be can be by the fluid operated any desired equipment of supercharging, for example, and control valve, pressurized fluid operated piston, pump or carry the pressure line of liquid.
Accumulator 2 can be formed into the pressure tube with cylinder axis L, for example for tubular and be specially cylindrical shape, such as the accumulator that nowadays uses in common rail system.Accumulator 2 is included in the wall 21 that the inboard has the storage space 22 that is used for pressurized liquid.Accumulator 2 comprises at least one attachment hole 23, and this attachment hole 23 extends radially outwardly from storage space 22 by wall 21, and leads to seating plane 24.Seating plane 24 forms conical.
For the tubular accumulator 2 of common rail system, many attachment holes 23 are set usually, according to diagram (Fig. 1), these attachment hole reference circle mast axis L front and back each other arranges.Following explanation will only limit to an attachment hole 23, because this is enough to understand.
High pressure joint 1 comprises main body 11, and this main body 11 extends to second end face 13 along longitudinal axis A from first end face 12.First end face 12 is suitable for cooperating hermetically with seating plane 24.In following mode of execution, first end face 12 is formed into conical surface and/or frusto-conical face.In this respect, the size of the relevant cone angle of first end face 12 can be identical, perhaps also slightly little with the cone angle of being correlated with seating plane 24 according to material.
In order to understand better, Fig. 1 shows high pressure joint 1 to be separated with accumulator 2.Should be understood that under serviceability high pressure joint 1 is expressed in the seating plane 24 its end face 12, thereby realize that between accumulator 2 and high pressure joint 1 the high pressure leakproof is connected.Compare with seating plane 24, if the cone angle of first end face 12 has reduced size, by the pressure of existence, first end face 12 is out of shape under serviceability so, and mates with seating plane 24.
First end face 12 has import 14, and fluid can flow to the high pressure joint 1 from the storage space 22 of accumulator 2 by this import 14.The through hole 15 that centering is arranged extends to the outlet 16 that is arranged at second end face 13 from import 14 on the direction of longitudinal axis A.In this embodiment, second end face 13 is formed into circular surface and/or annular surface.
Second end face 13 is suitable for making it to be received by equipment 3.Equipment 3 has chamber or hole 31, and this chamber or hole 31 are limited by wall 32, and receive second end face 13.According to diagram, the main body 11 of high pressure joint 1 has groove below second end face 13, and this groove extends on whole circumference, and is arranged on the seal element 17 (for example O shape ring) of sealing between wall 32 and the main body 11 in this groove.
First end face 12 and second end face 13 all have action face.Action face means and is effective drying surface that by this effective drying surface, the pressure that acts on the corresponding end- faces 12,13 can be along direction (that is, according to being illustrated as up or down) the generation power of longitudinal axis.Therefore, action face is that corresponding end- faces 12,13 is in the vertical projection that is positioned on the plane vertical with longitudinal axis A.For first end face 12, the size of action face is surperficial identical with dissecing of the W1 place, position that is represented by the arrow among Fig. 1.For second end face 13, the size of action face is identical with second end face 13.
According to the present invention, the action face of second end face 13 is greater than the action face of first end face 12.
According to diagram, under serviceability, charging fluid flows to the part that is arranged in second end face, 13 tops in the hole 31 of equipment 3 by attachment hole 23 and through hole 15 from the storage space 22 of accumulator 2.Fluid for example can flow through the passage 33 that can use from this part equipment 3.
Because this fluid, the pressure that exists in the pressure of effect and the storage space 22 on second end face 13 is basic identical.Because the action face of second end face 13 is greater than the action face of first end face 12, therefore, () power, and this power according to diagram downwards makes and presses seating plane 24 with winning end face seal all to produce the direction of pointing to longitudinal axis under all situations.Therefore, can realize the sealing that causes by hydrodynamic pressure.
In principle, sealing does not need attached (for example, by the welding or the soldering) of spiral connection and other type.Yet should be understood that additionally to provide for example bolt or other attachment means or guide means, with direct high pressure joint 1 on the direction of longitudinal axis A, perhaps avoids high pressure joint to tilt, and perhaps realizes primary seal.This will illustrate by embodiment according to second mode of execution.
In second mode of execution, describe at the large-scale diesel engine of important application in practice.In the large-scale diesel engine in modern times, fuel injection, gas exchange and randomly water spray and auxiliary system is operated by common rail system.Aspect this, the working medium that corresponding fluid (for example be used for spray fuel), hydraulic medium (for example being used to operate the servo oil of outlet valve) or be used to controlled injection under high pressure is transported to accumulator (also known to energy-storing device) by pump.Therefore provide charging fluid to all cylinders of internal-combustion engine, and fuel injection apparatus is controlled by pressurized liquid from corresponding energy-storing device and/or valve.Usually, accumulator is made for tubular part respectively, and this tubular part is in closed at both ends, and extends at the about height place of cylinder head along motor.
In common rail system, fuel sprays and produces maximum pressure usually.In relevant accumulator, pressure can reach for example 2000bar.At the accumulator of the common rail system that is used for activating outlet valve, the pressure of hydraulic medium (for example servo oil) can reach 300bar.
In partial schematic diagram, Fig. 2 shows those parts relevant with understanding the present invention according to the mode of execution of large-scale diesel engine of the present invention, and described motor is marked with reference character 100 on the whole.Particularly, current mode of execution is the two stroke formula large-scale diesel engines 100 that single current with low cruise that crosshead drives is swept row (uniflow scavenged).Large-scale diesel engine 100 is included in visible second mode of execution according to connection set 10 of the present invention in the cross-sectional schematic among Fig. 3.Cut open along the tangent line III-III of portion among Fig. 2 and to get this section.
In Fig. 2 and Fig. 3, the parts that have identical or similar functions with Fig. 1 are marked by identical reference character.All are also effective to second mode of execution in similar or corresponding identical mode with the explanation that first mode of execution carries out at Fig. 1.
Large-scale diesel engine 100 generally includes a plurality of cylinders 101, only can see a cylinder in Fig. 1.In each cylinder 101, piston 102 is arranged to and can reciprocally moves.Piston 102 is connected with unshowned crosshead by piston rod 103, and this crosshead is connected with the bent axle (not shown) by push rod then.
At each cylinder place outlet valve 104 is set, and in known manner with outlet valve 104 hydraulic actuatings.Produce this actuating by common rail system, this common rail system is included in second mode of execution according to connection set 10 of the present invention.The common rail system that is used to control outlet valve 104 comprises accumulator 2, and this accumulator 2 is made for the pressure tube that is used for hydraulic medium.
Here, equipment 3 is the valve control unit, VCUs 3 that are connected with the attachment hole 23 of accumulator 2 by high pressure joint 1 (referring to Fig. 3).Second end face 13 of high pressure joint 1 is to be arranged in the hole 31 of valve control unit, VCU 3 with similar mode shown in Fig. 1.Aspect this, high pressure joint 1 does not have threadably reception by valve control unit, VCU.Valve control unit, VCU 3 comprises the main control valve 35 of electronic pre-control and the electromagnetic steering valve 36 that is activated by control unit 105 by signaling line 106.Control valve 36 1 is opened main control valve 35, and hydraulic medium just can flow to outlet valve 104 by pressure line 107 from accumulator 2, to open this outlet valve 104.
In addition, pump 108 is set, this pump 108 is transported to hydraulic medium the accumulator 2 from unshowned storage vessel by circuit 109.
In Fig. 2, a valve control unit, VCU 3 only is shown; However, it should be understood that for each cylinder 101 corresponding valve control unit, VCU 3 all is set that in all cases, valve control unit, VCU 3 is connected with the attachment hole that separates 23 of accumulator 2 by high pressure joint 1.
Accumulator 2 is connected with valve control unit, VCU 3 by assembling set 4 (also referring to Fig. 3).Assembling set 4 in the mode of pipe clamp around accumulator 2.For attached high pressure joint 1, on its main body 11, flange 18 is set, and flange 18 is provided with two non-threaded holes that are used to receive first bolt 41.During high pressure joint 1 joins tapped hole in the assembling set 4 by first bolt 41 attached (being bolt) to assembling set 4, the first bolts 41 here.In this respect, first end face 12 is compressed in the seating plane 24, makes to realize sealing between high pressure joint 1 and accumulator 2.Therefore realize primary seal at least.
In order to connect high pressure joint 1 and valve control unit, VCU 3, and second end face 13 is guided in the hole 31, made that seal element 17 is suitable for sealing as the O shape ring between the main body 11 of the wall 32 in hole 31 and high pressure joint 1.By second bolt 42 valve control unit, VCU 3 is installed then and bolt at assembling set 4 places.
Under serviceability, hydraulic medium is also to second end face, 13 superchargings of high pressure joint, and second end face 13 is arranged in the hole 31 of valve control unit, VCU 3 (also referring to Fig. 1).Because the action face of second end face 13 is greater than the action face of first end face 12, therefore, high pressure joint 1 is expressed in the seating plane 24 of accumulator 2 its first end face 12 hermetically.
The whole support device of connection set 10 comprises accumulator 2, high pressure joint 1, valve control unit, VCU 3 and assembling set 4, and preferably only realizes by valve control unit, VCU 3.Owing to as has been discussed a plurality of valve control unit, VCUs 3 are set, therefore, connection set 10 is supported by a plurality of points.As shown in Figure 3, valve control unit, VCU 3 supporting element 5 that is fixedly attached to large-scale diesel engine 100 and/or therefore is provided with.Accumulator 2 is tightened to and valve control unit, VCU 3 adjacency by assembling set 4 side direction at normal operating position, and this is corresponding with the diagram shown in Fig. 2 and Fig. 3.The accumulator 2 that is made for pressure tube at the motor place and/or the motor body place do not have direct support, and only support via valve control unit, VCU 3.
Accumulator 2 with valve control unit, VCU 3 in abutting connection with and/or with equipment 3 general side be new measure in the large-scale diesel engine to the lateral arrangement of adjacency, this measure also can be independent of according to high pressure joint 1/ of the present invention and/or be independent of connection set 10 according to the present invention to be used.
Present technical merit is that accumulator is fixedly secured to motor, for example, is installed on the supporting element, and in fact, makes attachment hole with reference to normal operating position vertically up.Therefore equipment 3 and/or valve control unit, VCU 3 are positioned on the top of accumulator.For this purpose, accumulator side thereon must have plat surface, so that valve control unit, VCU to be installed, valve control unit, VCU by bolt be installed on this plat surface.Then with these bolted joints in the wall of accumulator, this means that the wall of accumulator must be provided with tapped hole.In this was vertically arranged, power (for example power that produces behind the open valve control unit) was delivered in the supporting element by accumulator.Whole device is supported by accumulator.
Compare with this technical merit, accumulator 2 at equipment 3 places and/or the lateral arrangement at valve control unit, VCU 3 places have some advantages.
Power (for example power that produces in open valve control unit 3 backs) is not introduced in the accumulator 2 substantially, but is directly delivered to the supporting element 5 from valve control unit, VCU 3.This has reduced the mechanical load of accumulator 2 significantly.
Additional advantage is that accumulator 2 no longer must have plat surface in its outside, because assembling set 4 has improved mechanical stability on the one hand, has simplified manufacturing on the other hand.
In addition, the wall 21 of accumulator 2 does not have hole and screw, because the first attached bolt 41 not only, and the second attached bolt 42 all joins in the assembling set 4, rather than joins in the wall 21 of accumulator 2.Thus, the mechanical stability of accumulator 2 also obtains very significantly improving, although this can cause operation pressure identical, the wall 21 that accumulator 2 is made is thinner.

Claims (13)

1. high pressure joint, this high pressure joint is used for and will be connected to the accumulator (2) that is used for described fluid by charging fluid apparatus operating (3), wherein, described accumulator has at least one attachment hole that leads to seating plane (24) (23), this high pressure joint comprises main body (11), this main body extends to second end face (13) from first end face (12) on the direction of longitudinal axis (A), wherein, described first end face (12) is suitable for cooperating with described seating plane (24) sealing and having import (14), and wherein, described second end face (13) is suitable for being received and being had an outlet (16) by described equipment (3), this outlet is connected with described import (14) by through hole (15), described high pressure joint is characterised in that, described second end face (13) has the action face that is used for described fluid, and this action face is greater than the action face of described first end face (12).
2. high pressure joint according to claim 1, wherein, described first end face (12) is made for conical surface or frusto-conical surface.
3. according to each described high pressure joint in the aforementioned claim, wherein, described second end face (13) is made for circular surface.
4. connection set, this connection set has: accumulator (2), this accumulator is used for the fluid of supercharging; Equipment (3), this equipment is by described fluid-operated; And high pressure joint (1), described fluid can arrive described equipment (3) from described accumulator (2) by this high pressure joint, wherein, described accumulator (2) has at least one attachment hole that leads to seating plane (24) (23), wherein, described high pressure joint (1) comprises main body (11), this main body extends to second end face (13) from first end face (12) on the direction of longitudinal axis (A), wherein, described first end face (12) is suitable for cooperating with described seating plane (24) sealing and having import (14), and wherein, described second end face (13) is suitable for being received and being had an outlet (16) by described equipment (3), this outlet is connected with described import (14) by through hole (15), wherein, described high pressure joint (1) makes its first end face (12) contact with described seating plane (24), and its second end face (13) is contacted with described equipment (3), make described fluid to flow to the described equipment (3) from described accumulator by the described through hole (15) of described high pressure joint (1), described connection set is characterised in that, described second end face (13) has the action face that is used for described fluid, and this action face is greater than the action face of described first end face (12).
5. connection set according to claim 4, wherein, described accumulator (2) is made for pressure tube.
6. according to claim 4 or 5 described connection sets, wherein, described equipment (3) is fastened to described accumulator (2) in normal operating position side direction.
7. according to each described connection set in the claim 4 to 6, wherein, the assembling set (4) around described accumulator (2) is set, wherein, described high pressure joint (1) is attached to this assembling set (4).
8. according to each described connection set in the claim 4 to 6, wherein, described second end face (13) of described high pressure joint (1) is arranged in the hole (31) of described equipment (3).
9. according to each described connection set in the claim 4 to 8, wherein, described high pressure joint (1) does not have threadably reception by described equipment (3).
10. according to each described connection set in the claim 4 to 9, wherein, described accumulator (2) is to be used for the hydraulic medium of large-scale diesel engine (100) or the pressure tube of fuel.
11. a large-scale diesel engine, it has according to a wherein described high pressure joint (1) of claim 1 to 3 or has a wherein described connection set (10) according to right 4 to 10.
12. large-scale diesel engine according to claim 11, wherein, described accumulator (2) is the pressure tube that is used for hydraulic medium or fuel, wherein, described pressure tube supports by described equipment (3), and wherein, described pressure tube is fastened to described equipment (3) in described normal operating position side direction.
13. according to claim 11 or 12 described large-scale diesel engines, wherein, described equipment (3) is for being used for outlet valve (104) is carried out the valve control unit, VCU of hydraulic actuating.
CN201010243445.4A 2009-08-04 2010-07-30 High pressure connection and attachment means Active CN101988451B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP09167159.4 2009-08-04
EP09167159 2009-08-04

Publications (2)

Publication Number Publication Date
CN101988451A true CN101988451A (en) 2011-03-23
CN101988451B CN101988451B (en) 2016-11-30

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Citations (10)

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Publication number Priority date Publication date Assignee Title
US2712458A (en) * 1950-06-05 1955-07-05 Lipson Leonard Pipe couplings
DE1295936B (en) * 1964-12-10 1969-05-22 Le Nii Khim Maschinos Pipe seal
EP0455937A1 (en) * 1990-05-11 1991-11-13 Mitsubishi Jukogyo Kabushiki Kaisha Valve driving apparatus of an internal combustion engine
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JPH09133280A (en) * 1995-11-08 1997-05-20 Kanzaki Kokyukoki Mfg Co Ltd Fluid connecting device
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JP2003148283A (en) * 2001-11-06 2003-05-21 Denso Corp Valve unit and fuel injection device using the same
DE10161438A1 (en) * 2001-12-14 2003-07-03 Man B&W Diesel A/S, Copenhagen Sv Large two-stroke diesel engine valve lubrication system
JP2005036792A (en) * 2003-06-27 2005-02-10 Denso Corp Pipe coupling device

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2712458A (en) * 1950-06-05 1955-07-05 Lipson Leonard Pipe couplings
DE1295936B (en) * 1964-12-10 1969-05-22 Le Nii Khim Maschinos Pipe seal
EP0455937A1 (en) * 1990-05-11 1991-11-13 Mitsubishi Jukogyo Kabushiki Kaisha Valve driving apparatus of an internal combustion engine
US5261705A (en) * 1991-04-08 1993-11-16 Toyota Jidosha Kabushiki Kaisha Coupling for high pressure fluid
JPH09133280A (en) * 1995-11-08 1997-05-20 Kanzaki Kokyukoki Mfg Co Ltd Fluid connecting device
CN1317079A (en) * 1999-07-15 2001-10-10 罗伯特·博施有限公司 Connection and housing, especially high-pressure fuel accumulator, with connecting that is welded on in prestreassed manner, for fuel injection system for internal combustion engine
DE19936535A1 (en) * 1999-08-03 2001-02-15 Bosch Gmbh Robert High pressure fuel accumulator
JP2003148283A (en) * 2001-11-06 2003-05-21 Denso Corp Valve unit and fuel injection device using the same
DE10161438A1 (en) * 2001-12-14 2003-07-03 Man B&W Diesel A/S, Copenhagen Sv Large two-stroke diesel engine valve lubrication system
JP2005036792A (en) * 2003-06-27 2005-02-10 Denso Corp Pipe coupling device

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EP2295786A1 (en) 2011-03-16
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KR20110014111A (en) 2011-02-10
EP2295786B1 (en) 2016-04-13

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