CN108368774A - The reciprocating-piston engine of the control valve of connecting rod and adjustable inductance operation with adjustable in length - Google Patents
The reciprocating-piston engine of the control valve of connecting rod and adjustable inductance operation with adjustable in length Download PDFInfo
- Publication number
- CN108368774A CN108368774A CN201680071484.6A CN201680071484A CN108368774A CN 108368774 A CN108368774 A CN 108368774A CN 201680071484 A CN201680071484 A CN 201680071484A CN 108368774 A CN108368774 A CN 108368774A
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- Prior art keywords
- crank
- connecting rod
- pin
- sensing device
- reciprocating
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- 238000002485 combustion reaction Methods 0.000 claims abstract description 10
- 230000033001 locomotion Effects 0.000 claims abstract description 7
- 230000006698 induction Effects 0.000 claims abstract description 6
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- 238000000034 method Methods 0.000 claims 1
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- 230000008859 change Effects 0.000 abstract description 8
- 101100234547 Caenorhabditis elegans rod-1 gene Proteins 0.000 description 19
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- 206010008469 Chest discomfort Diseases 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 230000001939 inductive effect Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 229910000859 α-Fe Inorganic materials 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
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- 230000005764 inhibitory process Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- 229910001172 neodymium magnet Inorganic materials 0.000 description 2
- 229910052761 rare earth metal Inorganic materials 0.000 description 2
- 150000002910 rare earth metals Chemical class 0.000 description 2
- 229910000938 samarium–cobalt magnet Inorganic materials 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B75/00—Other engines
- F02B75/04—Engines with variable distances between pistons at top dead-centre positions and cylinder heads
- F02B75/045—Engines with variable distances between pistons at top dead-centre positions and cylinder heads by means of a variable connecting rod length
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M1/00—Pressure lubrication
- F01M1/06—Lubricating systems characterised by the provision therein of crankshafts or connecting rods with lubricant passageways, e.g. bores
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D15/00—Varying compression ratio
- F02D15/02—Varying compression ratio by alteration or displacement of piston stroke
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/08—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor
- F15B11/10—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor in which the servomotor position is a function of the pressure also pressure regulators as operating means for such systems, the device itself may be a position indicating system
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
- F15B13/0401—Valve members; Fluid interconnections therefor
- F15B13/0402—Valve members; Fluid interconnections therefor for linearly sliding valves, e.g. spool valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
- F15B13/0401—Valve members; Fluid interconnections therefor
- F15B13/0406—Valve members; Fluid interconnections therefor for rotary valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C7/00—Connecting-rods or like links pivoted at both ends; Construction of connecting-rod heads
- F16C7/04—Connecting-rods or like links pivoted at both ends; Construction of connecting-rod heads with elastic intermediate part of fluid cushion
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C7/00—Connecting-rods or like links pivoted at both ends; Construction of connecting-rod heads
- F16C7/06—Adjustable connecting-rods
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
- F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
- F16H25/20—Screw mechanisms
- F16H25/2025—Screw mechanisms with means to disengage the nut or screw from their counterpart; Means for connecting screw and nut for stopping reciprocating movement
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M1/00—Pressure lubrication
- F01M1/06—Lubricating systems characterised by the provision therein of crankshafts or connecting rods with lubricant passageways, e.g. bores
- F01M2001/066—Connecting rod with passageways
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
- F15B2211/705—Output members, e.g. hydraulic motors or cylinders or control therefor characterised by the type of output members or actuators
- F15B2211/7051—Linear output members
- F15B2211/7053—Double-acting output members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2360/00—Engines or pumps
- F16C2360/22—Internal combustion engines
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The present invention relates to a kind of reciprocating-piston engines, especially internal combustion engine, have：The connecting rod (1) of at least one adjustable in length being connect with the crank-pin (21) of crank axle (26), wherein the connecting rod (1) have at least one length adjustment device (6) and it is at least one can electronic switching and can induction type manipulation control valve (7).It is set to realize the flexible change of compression ratio with as simple as possible and saving position and reliable way, the connecting rod (1) has at least one sensing device (11), the sensing device is in being formed in the connecting rod (1), since it is at least one end side (13) of the connecting rod (1) and be away from crank-pin spacing (a) crank-pin (21) longitudinal axis (21a) the position that is arranged center in the region of the big tie rod holes (5) of the connecting rod (1), the wherein described sensing device (11) be electrically connected with the control valve (7) or can be electrically connected and in the sensing device (11) in the rotational motion of crank axle (20) by it is at least one can induced current relative to the fixed exciting bank of crank axle (14).
Description
Technical field
The present invention relates to a kind of reciprocating-piston engines, especially internal combustion engine, at least one and crank axle
Crank pin connection, adjustable in length connecting rod, wherein the connecting rod have it is at least one can electronic switching and can perception grasp
The control valve of work.
Background technology
In order to be optimized in terms of discharge and consumption for internal combustion engine, attempted more and more with variable compression ratio
Variant scheme.Compression by changing internal combustion engine can run full load with lower compression ratio, with the ratio operation portion of raising
Divide load and starting.Here, improving consumption in partial load region, at the start as the compression ratio of raising improves compression pressure
Power and in high power as the ratio of reduction reduces injection pressure and prevents pinking.
To this end, it is disclosed that different solutions, especially solves asking for the control of control compression ratio in different ways
Topic.Piston is provided with actuator in the cylinder in 10 2,007 040 699 A1 of DE, and the actuator is by magnetostrictive material
Material constitutes and is arranged between piston pin and piston base.Pass through the dress for generating different magnetic field being arranged except cylinder
It sets and realizes that the length of actuator changes.Disadvantage in particular, in that, magnetostrictive material is easy to wear and does not ensure that longer
Reproducible characteristic on duration.
The solution that the connecting rod with adjustable in length is disclosed in 514 071 B1 of AT, in the solution
Length adjustment is realized via high-pressure chamber is selectively filled with.Selective filling comes at this via the control valve being arranged in connecting rod
It carries out.In an implementation modification, there is regulating piston in this control valve, which can be with electromagnetic mode by setting
The inductance coil in crank housings is set to operate.102 30 427 A1 of DE describe similar solution.Here, compared with
It can encounter difficulties when inductive energy is transmitted in long run time, such as because the dirt etc. in transmitting distance causes.
Furthermore it is known that solution take space and manufacture it is bothersome.
Invention content
Therefore, the task of the present invention is the shortcomings that avoiding the prior art and with as simple as possible and saving position and reliably
Mode realize the change of flexible compression ratio.
According to the present invention, it is a feature of the present invention that connecting rod has at least one sensing device, the sensing device is in structure
At in the connecting rod, since at least one end side of the connecting rod and be away from the crank with crank-pin spacing
Preferably it is arranged in recess in the position being arranged to the longitudinal axis of pin in the region of the big tie rod holes of the connecting rod, wherein
The sensing device can be electrically connected or be electrically connected with the control valve and in the sensing device in the rotation of crank axle
By at least one relative to the fixed exciting bank energy induced current of crank axle in movement.For example existed as a result, by setting
The compression ratio of internal combustion engine can quickly and easily be switched when control unit inductive operation control valve in crank shaft housing, it is interior
Combustion engine can continue and very low abrasively run.Especially, compression ratio is independently actively cut in present invention realization with operating point
It changes, this conversion that can be realized discharge and consume advantage.
Sensing device is interpreted as following element herein, in the element in crankshaft rotation induced potential.Excitation dress
It is following element to set, and causes the change of magnetic flux and therefore realize to form electric field in sensing device.
Sensing device and exciting bank are arranged so that in-between in the axial direction i.e. along crank shaft axis
It is constituted on direction and limits small air gap.Exciting bank be arranged crank axle the crank arm adjacent with connecting rod towards sensing device
Side in.
It is designed as in the implementation modification of the present invention, sensing device has the core around the material conducted by magnetic
The coil device of setting, wherein it is preferred that core and the anti-lost lost territory of coil device are arranged in recess.The material of magnetic conduction for example may be used
To be the material such as steel, alnico magnet or rare-earth magnet (neodymium iron boron or SmCo) of ferrite, soft iron or permanent magnet or permanent magnetism.
Anti-lost arrangement such as can by bonding, being screwed on, progress releasable hasp connection.
The sensing device being made of coil device and core is directly inserted into the lateral recess of connecting rod, wherein recess
It can be arranged in the bearing cap of the connecting-rod bearing.Alternatively to this, sensing device, which can also be arranged, is being inserted into recess
In, opened wide on that side in the end side of connecting rod in the shell constituted.The shell for example can with cup-shaped be constituted and be connected herein
Band sensing device is inserted into recess and losslessly fixes.
In order to prevent or reduce in connecting rod bearing cap formed vortex, it is connecting rod or connecting rod bearing cap it is at least one with it is recessed
The region adjacent into portion by with specific conductivity σ material and/or by have at least 1000 (more advantageously 1000 with
Between 3000) magnetic permeability mur, and/or the magnetic permeability mu with maximum 140000 (more advantageously between 50000 to 140000)r
Inhibition the magnetic line of force face coat.Connecting rod bearing cap or at least connecting rod are around the region of sensing device (multiple sensing devices)
By the material manufacture of the good magnetic conduction of energy but conductive difference.It prevents the magnetic line of force from invading connecting rod bearing cap as a result, and thus prevents
Vortex is only formed, the vortex can lead to the thermosetting in connecting rod and thus efficiency be caused to reduce.
Preferably, exciting bank has at least one magnetic element being firmly attached with crank axle, preferably permanent magnetism volume elements
Part is arranged to the longitudinal axis for being away from crank-pin with crank-pin spacing.Here, exciting bank can also have multiple and crank
The magnetic element that axis is firmly attached, the magnetic element are away from the vertical of crank-pin with crank pivot pin spacing in radial directions
Axis it is arranged, wherein it is preferred that each two adjacent magnetic element has different magnetic poles on that side of the end side of connecting rod.It is logical
It crosses crank axle rotation and thus generates variable magnetic flux and induced potential in sensing device.To multiple magnetic element alternatives
Ground, exciting bank can securely be connect by the side in crank-pin side with the crank arm of crank axle or single type are constituted
, the ring-type element of longitudinal axis at least partially surrounding crank-pin constitutes.
Ring-type element is configured to herein such as at least one of the following group：Magnet ring has at least equal to crank-pin
The radius of spacing, wherein the pole segmentation that preferably at least two adjacent end sides towards the connecting rod orient has different magnetic poles
Property；There is grading ring the radius at least equal to crank-pin spacing, the grading ring to have at least one recess portion and at least one
Protruding portion adjacent thereto, wherein the recess portion and the protruding portion orient with stretching along radial direction；Ring gear, the ring gear
With the radius at least equal to crank-pin spacing, the ring gear has at least one recess portion and at least one protrusion adjacent thereto
Portion, wherein the recess portion and protruding portion are axially parallel to the longitudinal axis stretching, extension ground of the crank-pin, towards the company
Limit to the end side of bar；The waveform region of restriction, have in radial directions or in ring circumferential direction alternate protruding portion with
Recess portion, the protruding portion and recess portion are constituted relative to Normal plane, longitudinal axis of the Normal plane relative to the crank-pin
Stretched in the side of crank-pin side to normal direction.
The different variant schemes of ring-type element realize transformable magnetic field in the case of magnet ring, in the rest of the cases
Air gap between sensing device and exciting bank changes in crankshaft rotation, thus causes the change of magnetic flux and therefore
Electric field is formed, this leads to the induced potential in sensing device.
In the simple implementation modification of the present invention, unique sensing device is set in connecting rod bearing cap.
If necessary to higher electrical power, then multiple, preferred two or three sensing devices can also be set in connecting rod bearing cap,
Longitudinal axis is parallel to the longitudinal axis setting of crank-pin.Longitudinal axis of the sensing device away from the crank-pin is respectively at least between crank-pin
Away from setting.
In the region of recess, connecting rod or connecting rod bearing cap have preferably comprised and in connecting rod bearing cap and pitman shaft bearing bore
Remaining region in bigger thickness, air gap as small as possible is constituted between connecting rod and crank arm, for realizing as well as possible
Effect.Remaining region of big tie rod holes has the spacing of bigger, therefore whirlpool in that region away from adjacent crank arm
Detrimental effect is slightly small caused by stream.Therefore, it is sufficient that in principle, measure described above is arranged in connecting rod bearing cap
In the region adjacent with recess, connecting rod bearing cap has its maximum gauge in this region.
It is designed as in the improvement project of the present invention, at least one energy storage device, the energy storage device is set in connecting rod
It is electrically connected or can connect with sensing device and control valve.The energy generated via induction can be stored by energy storage device, and
The energy is provided when needed.Battery, accumulator, super capacitor etc. can be used for example as energy-storage units.As a result, may be used
The channel in connecting rod is carried out to increase or reduce control to ensure the handoff functionality of for example bistable control valve
(aufsteuern oder zusteuern)。
Implementation modification according to the present invention has the advantages that all：The implementation modification is in structure and manufacturer
It simply and constitutes and can realize in a reliable fashion and neatly change compression ratio with saving position in formula.According to internal combustion engine
And the rotating speed of crank axle can be provided in the power (in about 3000U/min) between 1W and up to 5W, the power energy
It is enough to realize reliably switching control valve.
Description of the drawings
The present invention is described in detail hereinafter with reference to non-limiting embodiment, these implementations are exemplified in attached drawing
In.Attached drawing is schematically shown：
Fig. 1 has been shown ... in a side view the connecting rod of the reciprocating-piston engine according to the present invention in the first form of implementation
Related indicated control valve,
Figure 2 shows in side view another connecting rod according to the first form of implementation,
Fig. 3 shows the connecting rod in Fig. 2 with the section along the line III-III in Fig. 2,
Figure 4 shows in side view the related crank axle of the connecting rod of Fig. 2 and exciting bank,
Fig. 5 shows the connecting rod in Fig. 4 with the section along the line V-V in Fig. 4,
Fig. 6 has been shown ... in a side view the company of the reciprocating-piston engine according to the present invention in the second form of implementation
Bar,
Fig. 7 shows the connecting rod in Fig. 6 with main view,
Fig. 8 shows the connecting rod in Fig. 6 with the section along the line VIII-VIII in Fig. 6,
Fig. 9 has been shown ... in a side view the crank axle and exciting bank of the related part of connecting rod of Fig. 6,
Figure 10 shows the connecting rod in Fig. 9 with main view,
Figure 11 shows the connecting rod in Fig. 9 with the section along the line XI-XI in Fig. 9,
Figure 12 shows the related crank axle of connecting rod in a variant scheme with the section of similar Fig. 5,
Figure 13 shows the related crank axle of connecting rod in a variant scheme with the section of similar Fig. 5,
Figure 14 has been shown ... in a side view the reciprocating piston according to the present invention hair in the third form of implementation of the present invention
The connecting rod and exciting bank of motivation,
Figure 15 shows the related exciting bank of connecting rod bearing cap with the section along the line XV-XV in Figure 14,
Figure 16 shows the related exciting bank of connecting rod bearing cap with the section along the line XVI-XVI in Figure 14,
Figure 17 shows the related exciting bank of connecting rod bearing cap with main view,
Figure 18 shows the related exciting bank of the connecting rod bearing cap in Figure 14 with three-dimensional oblique view,
Figure 19 shows the pole shoe of the sensing device of connecting rod bearing cap shown in Figure 18 with three-dimensional oblique view,
Figure 20 shows pole shoe with horizontal cross-sectional, and
Figure 21 is shown according to the present invention past in the 4th implementation modification according to the present invention with longitudinal profile
The sensing device of the connecting rod of reciprocating piston engine.
Specific implementation mode
The identical part of function is provided with identical reference numeral in the view of implementation modification.
The figures illustrate the two-piece type connecting rods 1 of reciprocating-piston engine especially internal combustion engine, have：The first of top
Rod piece 2, first rod piece have the small tie rod holes 3 for being connect with piston not shown further；With with lower part
Two link members 4, have for visible crank axle 20 is connect for example in Fig. 5, Figure 12 or Figure 13 the composition connecting-rod bearing
The big tie rod holes 5 of 5a.The rotation pair of small tie rod holes 3 overlapped with unshowned piston pin axis is indicated with reference numeral 3a
Claim axis.First rod piece 2 is relative to the second rod piece 4 around by not seeing further between the position of pull-out and the position of push-in
The adjustable range that the end stop arrived limits is adjustable along the longitudinal axis 1a of connecting rod 1.For this purpose, the length that setting is shown in Fig. 1
Adjustment equipment 6 is spent, the length adjustment equipment can be constituted arbitrarily, such as the institute for example in 514 071 B of the AT of the applicant
As description.
Then, length adjustment can be as shown in 514 071 B of AT by the first rod piece for being fixed on top
Piston element in 2 carries out, and the piston element can be axial (along even in the guide cylinder of the second rod piece 4 of the lower part of connecting rod 1
The longitudinal axis 1a of bar 1) movably guide, wherein in the first end face and the second rod piece 4 of the big tie rod holes 5 of the direction of piston element
Or high pressure chest is transformed between guide cylinder, the high pressure chest is connect via oily channel with the control valve 7 for being configured to switching valve, the control
Valve processed optionally can load oil pressure to high pressure chest.Fig. 1 is then shown can length by length adjustment equipment 6 and control valve 7
The connecting rod 1 of adjusting.Length adjustment equipment 6 can constitute in different ways and not the part of the present invention.
In order to be controlled control valve 7 (in order to selectively to high pressure chest load oil pressure or in order to which length adjustment is set
Standby 6 respectively different manipulation), control unit 8 is set, described control unit for example via be arranged it is in crank box, at this
A little transmission/reception unit not shown in the figure obtain control signal.Control valve 7 forms the device 10 that the fluid of connecting rod 1 manipulates.With
Reference numeral 9 indicates that the energy storage device being arranged in connecting rod 1, the energy storage device are connect with control unit 8.Energy storage device 9
Such as can be battery, accumulator, super capacitor (the super or ultracapacitor for being used to store electric energy).
Control valve 7 is electrically connected or can connect at least one sensing device 11 via electric line 19, and the sensing device is set
It sets in the region of the big tie rod holes 5 of connecting rod 1 or is arranged in the leg area 12a of connecting rod bearing cap 12 or connecting rod leg.
In sensing device 11, by least one opposite at least one position of connecting rod 1 or in 20 rotary motion of crank axle
It can be with induced current in the fixed exciting bank of crank axle 14.Sensing device 11 has at least one coil device 15 and is arranged
In connecting rod 1 or connecting-rod bearing 5a connecting rod bearing cap 12 since the recess 16 at least one end side 13 of connecting rod 1,
The recess 16 is arranged with the longitudinal axis 21a of crank-pins 21 of the crank-pin spacing a (axis spacing) far from crank axle 20.It is former
On then, two or more sensing devices 11 can also be set, be arranged respectively with crank-pin spacing a.Crank-pin spacing a is herein
It is assumed to the spacing between longitudinal axis 21a and the midpoint of recess 16 radially.
Exciting bank 14 is arranged on the side (Flanke) 22 in crank-pin side of the crank arm 23 of crank axle 20 or it
In, and can constitute in different ways, as being explained further below.
Coil device 15 is for example configured to being arranged by the coil of coiling and around such as cylindrical core 17 for conductive material,
The core is fixedly inserted into recess 16 (referring to Fig. 2 to Fig. 5, Figure 13).Core 17 is in an illustrated embodiment by magnetic conduction
Material is constituted or such as such as ferrite or soft iron by permanent magnet or the material of permanent magnetism such as steel, alnico magnet or rare-earth magnet
(such as neodymium iron boron, SmCo or other) constitute.The diameter of core 17 is the big of the overall diameter for the coil device 15 for surrounding the core herein
About 80%.At least one conducting wire 19 is directed to control valve 7 from sensing device 11, and unshowned second circuit can be grounded,
Middle connecting rod 1 can be used as a reference for potential.
In order to avoid the unintentionally disengagement of sensing device 11, the sensing device can glue into, squeeze into or screw in recess
In 16 or otherwise anti-lost lost territory setting.It is directly inserted into recess at this by the core 17 that coil device 15 surrounds.
As an alternative to this, it is also possible to, 17 related coil device 15 of core is pre-installed to as structural unit in the end side of connecting rod 1
In the shell 18 that 13 that side is openly constituted, and anti-lost lost territory is inserted into recess 16 as a whole by the structural unit
In, the shell has the appearance of " cupuliform ".
In first variant scheme of the form of implementation shown in, have at least relative to the fixed exciting bank 14 of crank axle
One magnetic element 24 securely being connect with crank axle 20, such as permanent magnet, the magnetic element are away from crank-pin spacing a
The longitudinal axis 21a of crank-pin 21 it is arranged.Here, the midpoint of magnetic element 24 or the longitudinal axis 21a tools of centre-to-centre spacing crank-pin 21
There is crank-pin spacing a.Exciting bank 14 can be separately formed 24 shape of magnetic element for permanent magnet by one or more herein
At.
In multiple (such as ten, referring to Fig. 4) annular around each being configured to forever of the longitudinal axis 21a settings of crank-pin 21
In the case of the magnetic element 24 of magnet, adjacent permanent magnet is respectively provided with different magnetic on that side of the end side of connecting rod 1 13
Polarity.
In the case that in reciprocating-piston engine or internal combustion engine operation, crank axle 20 rotates, the movement warp of magnetic element 24
It crosses the core 17 of magnetic conduction and induced voltage, the voltage can be used for running control in sensing device 11 by the magnetic flux of change
Valve 7.
In order to improve the efficiency of the equipment, a variant scheme according to the present invention can take following measure：It is described to arrange
The inductive loop in connecting rod will be reduced or prevent by applying.Be designed as thus, connecting rod 1 and/or connecting rod cap 12 at least with recess 16
In adjacent region (herein its for example can also be cupuliform shell 18) but advantageously completely inswept by exciting bank 14
(the feelings of the coordination needed for considering between magnetic conductivity and electric conductivity are constituted by the material with determining conductivity σ in region
Under condition, the magnetic conductivity and electric conductivity can fluctuate several ten powers according to material), and/or by magnetic permeability murIt is arrived for minimum 1000
3000 material is constituted, and/or has magnetic permeability murFor the face coat of the inhibition magnetic line of force of maximum 50000 to 140000.It is logical
Crossing this material, for example ferrite or the raw material of other sintering are flowed with good magnetic conductivity but poorly conductive in connecting rod 1
Dynamic electric current and the thus thermal losses caused by vortex are prevented from.Coating with the material such as Mu metals for inhibiting the magnetic line of force is anti-
Only magnetic line of force entrance and inductive loop.
The region adjacent from recess 16 stretching, extension it is related with different features, such as with used magnet/or magnetic conduction
The selection of material, recess depth M1 (referring to Fig. 5), interpolar it is related with other every the magnetic conductivity of the material of, connecting rod 1.Favorably
The peripheral part on ground, recess 16 is constituted as described above, and size (is interpreted as in circular recess 16 from recessed
In the case of the radially extending of portion edge 16) correspond to the quotient of width of air gap M2 divided by recess depth M1.
Magnetic element 24 to being configured to each permanent magnet can also use the longitudinal axis about crank-pin 21 as an alternative
The ring-type element 25,26,27 of longitudinal axis 21a that 21a is concentrically disposed with, at least partly surrounding crank-pin 21, the Annular Element
Part is fixed in the side 22 of the crank arm 23 of crank axle 20 or goes up and is connected thereto or single type is constituted.
The spacing of each magnetic element 24 or the radius of ring-type element 25 are equal to the crank-pin spacing away from longitudinal axis 21a herein
A, i.e., it is equally remote away from longitudinal axis 21a as sensing device 11.Ring-type element 25,26,27 can be arranged in the side of crank arm 23
In the milling in face 22 or corrosion slot 22a (Figure 12), or (Figure 13) is fixed on side 22.
The first variant scheme of ring-type element is shown in figure 12 and figure 13.Ring-type element is configured to (average herein
) radius is equal to the magnet ring 25 of crank-pin spacing a, wherein magnet ring 25 is arranged in the end side towards connecting rod 1 of crank arm 23
In 13 side 22 or locate.Magnet ring 25 is made of the segmentation of the pole of magnetic material, wherein the segmentation of each two adjacent pole is towards even
The end side 13 of bar 1 directionally has different magnetic polarities.
When crank axle 20 rotates, by magnetic element 24 or magnet ring 25 in the sensing device 11 of connecting rod 1 induced electricity
Pressure, the voltage can be used for carrying out electric current supply to control valve 7 or for feeding for energy-storage units 9.
Another variant scheme of ring-type element is shown in Fig. 9 to Figure 11 or Figure 15 to Figure 20, there exciting bank
14 by with the grading ring 26 (Fig. 9-11) or tooth that are securely connect in the side 22 of crank-pin side of the crank arm 23 of crank axle 20
Ring 27 (Figure 15-20) formation, the grading ring or ring gear have axially free position or the recess portion 28 and extremely of at least one restriction
The axial protrusion 29 of a few restriction, wherein free position or recess portion 28 and protrusion 29 are at least remote with crank distance between axles a
It is arranged from the longitudinal axis 21a in crank-pin 21.In this variant, sensing device 11 core 17 as permanent magnet manufacture or
By the material manufacture of permanent magnetism.
Grading ring 26 has recess portion 28 arranged side by side and protrusion 29 according to Fig. 9, stretches in radial directions, this meaning
Taste：The radius of grading ring 26 is bigger than in the region of recess portion 28 in the region of protruding portion 29, wherein average radius is substantially
Corresponding to crank-pin spacing a.As a result, grading ring 26 radially extend it is bigger than crank-pin spacing in the region of protruding portion 29, with
Compared to small in the region of recess portion 28.It hereby is obtained that, when crank axle 20 rotates, sensing device 11 is divided in connecting rod 1
Section ring 26 is only inswept in the region of its protruding portion 29, but grading ring 26 is not handed in the region of recess portion 28 with sensing device 11
It is folded.
In the rotational motion of crank axle 20, therefore magnetic flux changes in sensing device 11, thus in sensing device 15
Middle induced voltage can be used for running control valve 7.
Ring gear 27 is parallel to the longitudinal axis 21a of crank-pin 21 in the axial direction especially in accordance with Figure 15,16 and 18
With recess portion 28 and protruding portion 29.Recess portion 28 and protruding portion 29 are herein on that side towards the end side 13 of connecting rod 1 of ring gear 27
It constitutes and forms " teeth portion ".Equally cause the magnetic flux of alternation in sensing device 11 when crank axle 20 is rotated by teeth portion
Amount, the flux sensing voltage.As shown in Figure 14 and Figure 18, ring gear 27 has radial slot mouth 31, to subtract
The small vortex occurred during operation.It thus prevents, thermosetting occurs in ring gear 27 due to being vortexed.
In another variant scheme of ring-type element, exciting bank 14 passes through in the side in crank-pin side of crank arm 23
The related alternation each other in waveform region 32 of restriction in 22 relative to the stretching, extension of the longitudinal axis 21a normal direction of crank-pin 21
Recess portion 28 and protruding portion 29 formation that Normal plane is constituted, as shown in figure 21.Protruding portion 29 and recess portion 28 can exist each other herein
Replace in the radial direction or in ring circumferential direction.Pass through sensing device (multiple induction dresses during crank axle 20 is run or is rotated
Set) 11 it is inswept, form changing magnetic field, which is configured to permanent magnet or the core 17 that is made of magnetic material being provided with
Induced voltage in sensing device 11.
In another variant scheme of the present invention, the core 17 of sensing device 11 has with pole shoe 30 with teeth, such as in Figure 19
Shown in Figure 20.Band on the permanent magnet of core 17 pole shoe 30 with teeth is similar to 27 ground of ring gear and constitutes and for improving magnetic
The change rate of flux and thus the transmitted power of raising.
In the rotational motion of crank axle 20, change one by the variable air gap in 29 form of recess portion 28 and protruding portion
Or the magnetic flux of the material of the permanent magnet or magnetic conduction of multiple cores 17, the thus induced voltage in coil device 15.Magnetic flux changes
Become and is therefore carried out by the variable air gap 33 between sensing device 11 and exciting bank 14.
As described in the foregoing, i.e., (in the magnet member being arranged in crank arm 22 in the variant scheme of Fig. 4
The exciting bank 14 of 24 form of part, consists of permanent magnet) and in the variant scheme of Figure 12 and Figure 13 (as with alternate
The ring-type element of the magnet ring 25 of pole segmentation) core 17 of sensing device 11 is made of the material of magnetic conduction, and in remaining variant scheme
Core 17 is configured to permanent magnet or is made of the material of permanent magnetism.
It can be by sensing device 11 in crank in the variant scheme of its description by solution according to the present invention
(about 700U/min) realizes the power (virtual value) of about 1W during axis 20 dallies, in higher rotation speed (for example, about 3000U/
5W can be increased to when min).Thus the reliable switching of control valve 7 is realized well.In addition, energy storage device 9 can be supplied fully
To energy, switch to be realized at the time point of the slow-speed of revolution.
Claims (11)
1. a kind of reciprocating-piston engine, especially internal combustion engine, have：At least one crank-pin (21) with crank axle (26)
The connecting rod (1) of the adjustable in length of connection, wherein the connecting rod (1) has at least one length adjustment device (6) and at least one
It is a especially can electronic switching, can induction type manipulate control valve (7), wherein the connecting rod (1) have at least one induction
Device (11), the sensing device in being formed in the connecting rod (1), from least one end side (13) of the connecting rod (1)
The position being arranged to longitudinal axis (21a) that is starting and being away from the crank-pin (21) with crank-pin spacing (a) centers
In the region of the big tie rod holes (5) of the connecting rod (1), wherein the sensing device (11) is electrically connected with the control valve (7)
Connect or can be electrically connected and in the sensing device (11) in the rotational motion of crank axle (20) by least one phase
It can induced current for the fixed exciting bank of crank axle (14).
2. reciprocating-piston engine according to claim 1, wherein the sensing device (11) is arranged in recess
(16) in.
3. reciprocating-piston engine according to claim 1 or 2, which is characterized in that the sensing device (11) has
The coil device (15) of core (17) setting constituted around the material conducted by magnetic, wherein it is preferred that core (17) and coil device (15)
Anti-lost lost territory is arranged in recess (16).
4. reciprocating-piston engine according to any one of the preceding claims, which is characterized in that at least one induction
Device (11) is arranged in shell (18), and the shell is inserted into recess (16), in the end side of the connecting rod (1)
(13) it is openly constituted on that side.
5. reciprocating-piston engine according to any one of the preceding claims, which is characterized in that the connecting rod (1)
It is at least one with the sensing device (11) and/or region that recess (16) is adjacent by least 1000 magnetic permeability mu r material
It constitutes and/or with maximum 140000 magnetic permeability murInhibition the magnetic line of force face coat.
6. reciprocating-piston engine according to any one of the preceding claims, which is characterized in that the sensing device
(11) and/or recess (16) is arranged in the bearing cap (17) of the connecting-rod bearing (5a).
7. reciprocating-piston engine according to any one of the preceding claims, which is characterized in that the exciting bank
(14) there is at least one magnetic element (24) securely being connect with the crank axle (20), preferably permanent magnet elements, the magnetic
Volume elements part is arranged while the longitudinal axis (21a) of the crank-pin (21) is away from crank-pin spacing (a).
8. reciprocating-piston engine according to any one of the preceding claims, which is characterized in that the exciting bank
(14) have multiple magnetic elements (24) securely being connect with the crank axle (20), the magnetic element in radial directions with
Crank-pin spacing (a) is arranged with being away from the longitudinal axis (21a) of the crank-pin (21), wherein it is preferred that each two adjacent magnet
Element (24) has different magnetic polarities on that side of the end side (13) of the connecting rod (1).
9. reciprocating-piston engine according to any one of the preceding claims, which is characterized in that the exciting bank
(14) securely connect by the side (22) in crank-pin side with the crank arm (23) of the crank axle (20) or single type
Ring-type element (25,26, the 27) formation of longitudinal axis (21a) constituting, at least partly surrounding crank-pin (21).
10. reciprocating-piston engine according to claim 9, which is characterized in that the ring-type element (25,26,27)
It is configured to such as at least one of the following group：
Magnet ring (25) has the radius at least equal to crank-pin spacing (a), wherein preferably at least two adjacent directions
The pole segmentation of end side (13) orientation of the connecting rod (1) has different magnetic polarities；
There is grading ring (26) radius at least equal to crank-pin spacing (a), the grading ring to have at least one recess portion
(28) and at least one protruding portion (29) adjacent thereto, wherein the recess portion (28) and the protruding portion (29) are along radial side
It is oriented to stretching, extension；
There is the radius at least equal to crank-pin spacing (a), the ring gear to have at least one recessed for ring gear (27), the ring gear
Portion (28) and at least one protruding portion (29) adjacent thereto, wherein the recess portion (28) and protruding portion (29) are axially
With being parallel to longitudinal axis (21a) stretching, extension of the crank-pin (21), it is limited towards the end side (13) of the connecting rod (1)；
The waveform region (32) of restriction has alternate protruding portion and recess portion in radial directions or in ring circumferential direction,
The protruding portion and recess portion are constituted relative to Normal plane, longitudinal axis collimation method of the Normal plane relative to the crank-pin (21)
The stretching, extension in the side (22) of crank-pin side to ground.
11. reciprocating-piston engine according to any one of claim 1 to 10, which is characterized in that in the connecting rod
(1) energy storage device that is at least one being electrically connected with the sensing device (11) and control valve (7) or being electrically connected is provided in
(9)。
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ATA51062/2015 | 2015-12-14 | ||
| ATA51062/2015A AT517489B1 (en) | 2015-08-10 | 2015-12-14 | HOLLOWING MACHINE, IN PARTICULAR FUEL POWER MACHINE, WITH AT LEAST ONE LENGTH-ADJUSTABLE CONNECTING BAR |
| ATA50390/2016A AT517538B1 (en) | 2015-08-10 | 2016-04-29 | reciprocating engine |
| ATA50390/2016 | 2016-04-29 | ||
| PCT/EP2016/080940 WO2017102815A1 (en) | 2015-12-14 | 2016-12-14 | Reciprocating-piston machine comprising a length-adjustable connecting rod and an inductively actuatable control valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108368774A true CN108368774A (en) | 2018-08-03 |
| CN108368774B CN108368774B (en) | 2021-04-16 |
Family
ID=60019625
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201680071484.6A Expired - Fee Related CN108368774B (en) | 2015-12-14 | 2016-12-14 | Reciprocating piston engine with a connecting rod of adjustable length and an inductively operable control valve |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN108368774B (en) |
| WO (1) | WO2017102815A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT522787B1 (en) * | 2019-11-26 | 2021-02-15 | Miba Gleitlager Austria Gmbh | Bearing arrangement |
| AT522972B1 (en) * | 2019-11-26 | 2021-04-15 | Miba Gleitlager Austria Gmbh | Bearing arrangement |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB458258A (en) * | 1934-04-14 | 1936-12-15 | Jean Edouard Andreau | Improvements in or relating to means for regulating internal combustion engines having variable compression spaces |
| US4403153A (en) * | 1981-04-03 | 1983-09-06 | Roger Vallon | Free-piston electric current generator |
| US4934347A (en) * | 1987-06-18 | 1990-06-19 | Nissan Motor Co., Ltd. | Variable compression piston arrangement for internal combustion engine |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2989954A (en) * | 1959-09-21 | 1961-06-27 | Continental Motors Corp | Internal-combustion engine |
| EP0438121B1 (en) * | 1990-01-17 | 1995-04-05 | Mitsubishi Jidosha Kogyo Kabushiki Kaisha | Variable compression ratio apparatus for internal combustion engine |
| CN104662273B (en) * | 2012-07-30 | 2018-11-20 | Fev 有限责任公司 | The driving unit of engine components for variation |
| DE102013111617B4 (en) * | 2013-10-22 | 2021-12-23 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Changeover valve and internal combustion engine with such a changeover valve |
-
2016
- 2016-12-14 CN CN201680071484.6A patent/CN108368774B/en not_active Expired - Fee Related
- 2016-12-14 WO PCT/EP2016/080940 patent/WO2017102815A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB458258A (en) * | 1934-04-14 | 1936-12-15 | Jean Edouard Andreau | Improvements in or relating to means for regulating internal combustion engines having variable compression spaces |
| US4403153A (en) * | 1981-04-03 | 1983-09-06 | Roger Vallon | Free-piston electric current generator |
| US4934347A (en) * | 1987-06-18 | 1990-06-19 | Nissan Motor Co., Ltd. | Variable compression piston arrangement for internal combustion engine |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2017102815A1 (en) | 2017-06-22 |
| CN108368774B (en) | 2021-04-16 |
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