CN106194429A - In-line four cylinder VCR electromotor hydraulic control crankshaft rod structure - Google Patents
In-line four cylinder VCR electromotor hydraulic control crankshaft rod structure Download PDFInfo
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- CN106194429A CN106194429A CN201610843523.1A CN201610843523A CN106194429A CN 106194429 A CN106194429 A CN 106194429A CN 201610843523 A CN201610843523 A CN 201610843523A CN 106194429 A CN106194429 A CN 106194429A
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- oil duct
- section
- crankshaft
- guide pillar
- vcr
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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
- F02B75/32—Engines characterised by connections between pistons and main shafts and not specific to preceding main groups
-
- 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
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B75/00—Other engines
- F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
- F02B75/18—Multi-cylinder engines
- F02B2075/1804—Number of cylinders
- F02B2075/1816—Number of cylinders four
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
Abstract
The invention discloses a kind of in-line four cylinder VCR electromotor hydraulic control crankshaft rod structure, including bent axle and a VCR connecting rod, the 2nd VCR connecting rod, the 3rd VCR connecting rod and the 4th VCR connecting rod being arranged on bent axle；Described bent axle includes the first crankshaft section, the second crankshaft section, three-crankshaft section, the 4th crankshaft section and the 5th crankshaft section；It is connected by hydraulic oil guide pillar I between first crankshaft section and the second crankshaft section, is connected by hydraulic oil guide pillar II between the second crankshaft section, three-crankshaft Duan Yu tetra-crankshaft section, be connected by hydraulic oil guide pillar III between the 4th crankshaft section and the 5th crankshaft section；The present invention can control engine compression ratio according to the compression ratio control strategy formulated flexibly by external hydraulic control system, hydraulic system response simultaneously is very fast, can quickly perform compression ratio adjustment action, have that motility is high, adjustable extent wide, respond fast feature；Also having the feature of simple in construction, good manufacturability, owing to need not introduce complicated frame for movement, manufacturing cost is relatively low.
Description
Technical field
The present invention relates to a kind of in-line four cylinder VCR engine components, particularly to a kind of in-line four cylinder VCR electromotor hydraulic control
Crankshaft rod structure.
Background technology
The core of VCR (Variable Compression Ratio, variable compression ratio) technology is: according to the fortune of electromotor
Row operating mode adjusts the compression ratio starting cylinder dynamically, and when running on the lower load, electromotor keeps higher compression ratio, so may be used
To improve fuel economy and to reduce exhaust emissions；And electromotor uses relatively low compression ratio when high load capacity operating mode, to prevent
The rough combustion of electromotor, improves the reliability of electromotor.As improving the most potential technology of Fuel Economy,
VCR technology is by domestic and international educational circles and the very big concern of business circles.The existing electromotor realizing alterable compression ratio, is typically all
By the way of piston stroke, regulate compression ratio, there is the problem that the machinery for regulating piston stroke is tied
Structure is complicated, parts are numerous, owing to electromotor is the highest for the requirement of structural stability, therefore causes this kind of VCR electromotor to be made
High price is expensive；Owing to compression ratio control mechanism is complex, the real-time responsiveness adding machinery is the slowest, causes existing
Some VCR electromotors are difficult to the demand for control under the conditions of reply electromotor sudden load, control effect poor, and due to reality
In operation, engine operating condition change is very frequent, and machinery is more easy to wear；Meanwhile, machinery there is also adjustable state Finite
Problem.
For solving above-mentioned technical problem, Chinese invention patent CN 103670729 B discloses a kind of variable link-type VCR
Engine link mechanism, the connecting rod in linkage uses a piston structure stretched by hydraulic control to realize, by regulation liquid
Pressure regulates the length of connecting rod, thus plays the purpose dynamically changing compression ratio, and it provides a kind of new compression ratio adjustment hands
Section, scalable state is versatile and flexible, and regulation action response is very fast, it is not necessary to complicated mechanical driving device, and structure is relatively simple,
Cost is relatively low.But, this technical scheme is suitable only for being applied to single-cylinder engine, and for multicylinder engine, especially in upright arrangement four
Cylinder engine, then be difficult to the regulation of compression ratio.
Summary of the invention
In view of this, it is an object of the invention to provide a kind of in-line four cylinder VCR electromotor hydraulic control crankshaft rod structure, can
Realize the adjustable of inline four-cylinder engine compression ratio.
The in-line four cylinder VCR electromotor hydraulic control crankshaft rod structure of the present invention, including bent axle and be arranged on bent axle the
One VCR connecting rod, the 2nd VCR connecting rod, the 3rd VCR connecting rod and the 4th VCR connecting rod；
The structure of a described VCR connecting rod, the 2nd VCR connecting rod, the 3rd VCR connecting rod and the 4th VCR connecting rod is identical and all wraps
Include piston rod, piston bush and fairlead；
The shaft section of described piston bush is inverted T-shaped structure, and the vertical section of inverted T-shaped structure forms piston end, inverted T-shaped structure
Traversing section forms driving end, and described piston end end face is provided with axial hydraulic piston；Described driving end is provided with the most logical
Hole；The solid section of piston bush is provided with the first separate hydraulic pressure oil duct and the second hydraulic pressure oil duct, the first hydraulic pressure oil duct
One end connects with radial direction through hole, the other end connects with the bottom surface of hydraulic piston, one end of the second hydraulic pressure oil duct and radial direction through hole
Connection, the other end connect with in the middle part of hydraulic piston；
Described fairlead is column with variable cross-sections, the T-shaped structure of shaft section of described fairlead, the vertical section socket of T-shaped structure
At hydraulic piston intracavity, the traversing section of T-shaped structure is connected with piston end end face, be provided with in the middle part of described fairlead axially extending bore,
Bottom is provided with cannelure, and described cannelure connects with fairlead lower surface；
Described piston rod is socketed in the axially extending bore of fairlead, and can relatively slide between piston rod and fairlead, lives
Stopper rod lower end is provided with spacing section, and spacing section of diameter is more than axially extending bore internal diameter, and fairlead lower surface is in the maximum of spacing section
Every trade journey limits；In the range of the connectivity part of the second hydraulic pressure oil duct and hydraulic piston is positioned at the elevation of cannelure；
Described bent axle includes the first crankshaft section, the second crankshaft section, three-crankshaft section, the 4th crankshaft section and the 5th crankshaft section；
Being connected by hydraulic oil guide pillar I between described first crankshaft section and the second crankshaft section, described hydraulic oil guide pillar I passes
The radial direction through hole of the oneth VCR connecting rod and two ends are separately fixed on the first crankshaft section and the second crankshaft section；Described first crankshaft section
Inside it is provided with oil input channel I, is provided with the second separate bent axle elongation oil duct in described second crankshaft section and the second bent axle shrinks oil
Road；The first separate guide pillar oil duct I and the second guide pillar oil duct I, the first guide pillar oil duct I it is provided with in described hydraulic oil guide pillar I
It is connected with the first hydraulic pressure oil duct of oil input channel the I, the oneth VCR connecting rod and the second bent axle elongation oil duct, the second guide pillar oil duct I and the
Second hydraulic pressure oil duct of one VCR connecting rod and the second bent axle shrink oil duct and are connected；
It is connected by hydraulic oil guide pillar II between described second crankshaft section, three-crankshaft Duan Yu tetra-crankshaft section, described liquid
Force feed guide pillar II divides through radial direction through hole, three-crankshaft section and the radial direction through hole of the 3rd VCR connecting rod and the two ends of the 2nd VCR connecting rod
It is not fixed on the second crankshaft section and the 4th crankshaft section；The 4th separate bent axle elongation oil it is provided with in described 4th crankshaft section
Road and the 4th bent axle shrink oil duct；The first separate guide pillar oil duct II and the second guide pillar it is provided with in described hydraulic oil guide pillar II
Oil duct II, the first guide pillar oil duct II and the second bent axle elongation oil duct, the first hydraulic pressure oil duct of the 2nd VCR connecting rod, the 3rd VCR connecting rod
The first hydraulic pressure oil duct and the 4th bent axle elongation oil duct be connected, the second guide pillar oil duct II and the second bent axle contraction oil duct, second
Second hydraulic pressure oil duct of VCR connecting rod, the second hydraulic pressure oil duct of the 3rd VCR connecting rod and the 4th bent axle shrink oil duct and are connected；
Being connected by hydraulic oil guide pillar III between described 4th crankshaft section and the 5th crankshaft section, described hydraulic oil guide pillar III is worn
Radial direction through hole and the two ends of crossing the 4th VCR connecting rod are separately fixed on the 4th crankshaft section and the 5th crankshaft section；Described 5th bent axle
It is provided with oil input channel II in Duan, in described hydraulic oil guide pillar III, is provided with the first separate guide pillar oil duct III and the second guide pillar oil duct
III, the first guide pillar oil duct III is connected with the first hydraulic pressure oil duct of the 4th bent axle elongation oil duct and the 4th VCR connecting rod, the second guide pillar
Oil duct III shrinks oil duct, the second hydraulic pressure oil duct of the 4th VCR connecting rod and oil input channel II with the 4th bent axle and is connected.
Further, each crankshaft section is provided with stairstepping installing hole, described stairstepping installing hole with the respective pistons set place of cooperation
Including for the first installing hole that driving end side is connected and for being connected with the side of corresponding hydraulic oil guide pillar
The second installing hole, the aperture of described second installing hole is less than the aperture of the first installing hole.
Further, the inwall of described first installing hole is provided with bearing shell, and described bearing shell is provided with oilhole, on each crankshaft section
It is provided with the oil leab connected with oilhole.
Further, stretch out formation limiting section, described limiting section and the second installing hole of the two ends of each hydraulic oil guide pillar is suitable
Shape coordinates and limits the degree of freedom of corresponding hydraulic oil guide pillar.
Further, described second installing hole is provided with the sealing ring mounting groove for installing sealing ring.
Further, the traversing section of described fairlead is pressed solidly at piston end end face by a pressing plate, pressing plate, fairlead and piston end
Being provided with corresponding connecting hole, connector penetrates connecting hole and pressing plate, fairlead and piston end is linked together.
Beneficial effects of the present invention: the in-line four cylinder VCR electromotor hydraulic control crankshaft rod structure of the present invention, by five songs
Shaft part and three hydraulic oil guide pillars are by the first hydraulic pressure oil duct of four piston bush and the connection of the second hydraulic pressure oil duct, when hydraulic oil is from the
When the oil input channel I of one crankshaft section enters, the first hydraulic pressure oil duct oil-feed of four piston bush, four piston rods are at hydraulic oil liquid pressure
Effect under stretch out, the hydraulic oil of four the second hydraulic pressure oil ducts flows out from the oil input channel II of the 5th crankshaft section simultaneously, thus
Inline four-cylinder engine is made to obtain higher compression ratio；When hydraulic oil enters from the oil input channel II of the 5th crankshaft section, four work
Second hydraulic pressure oil duct oil-feed of plug sleeve, four piston rods shorten under the effect of hydraulic oil liquid pressure, four the first hydraulic pressure simultaneously
The hydraulic oil of oil duct flows out from the oil input channel I of the first crankshaft section, so that inline four-cylinder engine obtains relatively low compression ratio；Logical
Crossing external hydraulic locking loop can keep inline four-cylinder engine compression ratio to fix at certain value, so that engine compression ratio
Change within a certain range, it is achieved inline four-cylinder engine compression ratio adjustable；The present invention can by external hydraulic control system
Controlling engine compression ratio flexibly according to the compression ratio control strategy formulated, hydraulic system response simultaneously is very fast, can be quick
Perform compression ratio adjustment action, have that motility is high, adjustable extent wide, respond fast feature；Meanwhile, the present invention also has structure
Simply, the feature of good manufacturability, owing to need not introduce complicated frame for movement, the manufacturing cost of VCR electromotor is relatively low.
Accompanying drawing explanation
The invention will be further described with embodiment below in conjunction with the accompanying drawings:
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the structural representation of the hydraulic oil guide pillar I of the present invention；
Fig. 3 is the structural representation of the hydraulic oil guide pillar II of the present invention；
Fig. 4 is the structural representation of the hydraulic oil guide pillar III of the present invention.
Detailed description of the invention
As shown in the figure: the in-line four cylinder VCR electromotor hydraulic control crankshaft rod structure of the present embodiment, including bent axle and being arranged on
A VCR connecting rod, the 2nd VCR connecting rod, the 3rd VCR connecting rod and the 4th VCR connecting rod on bent axle；A described VCR connecting rod, second
The structure of VCR connecting rod, the 3rd VCR connecting rod and the 4th VCR connecting rod is identical and all includes piston rod 1, piston bush and fairlead；At figure
Only show the structure of a VCR connecting rod in 1, actual bent axle is also equipped with the 2nd VCR connecting rod, the 3rd VCR connecting rod and the 4th
VCR connecting rod；The shaft section of described piston bush is inverted T-shaped structure, and the vertical section of inverted T-shaped structure forms piston end 2, inverted T-shaped structure
Traversing section formed driving end 3, described piston end 2 end face is provided with axial hydraulic piston 2a；Described driving end 3 is provided with
Radial direction through hole 3a；The solid section of piston bush is provided with the first separate hydraulic pressure oil duct 41 and the second hydraulic pressure oil duct 42, the
One end of one hydraulic pressure oil duct 41 connects with radial direction through hole 3a, the other end connects with the bottom surface of hydraulic piston 2a, the second hydraulic oil
The one end in road 42 connects with radial direction through hole 3a, the other end connects with in the middle part of hydraulic piston 2a；The most i.e. vertical direction herein,
The most laterally.
Described fairlead 5 is column with variable cross-sections, the T-shaped structure of shaft section of described fairlead 5, the vertical section set of T-shaped structure
Being connected in hydraulic piston 2a, the traversing section of T-shaped structure is connected with piston end 2 end face, is provided with axially in the middle part of described fairlead 5
Through hole, bottom are provided with cannelure 5a, described cannelure 5a and connect with fairlead 5 lower surface；For preventing hydraulic fluid leak, guide
It is provided with sealing member between set 5 and piston bush；The traversing section of described fairlead 5 is pressed solidly at piston end 2 end face by a pressing plate, pressing plate,
Fairlead 5 and piston end 2 are provided with corresponding connecting hole, and connector penetrates connecting hole and pressing plate, fairlead 5 and piston end 2 connected
Being connected together, connector can be bolt structure.
Described piston rod 1 is socketed in the axially extending bore of fairlead 5, and can be the most sliding between piston rod 1 and fairlead 5
Dynamic, piston rod 1 lower end is provided with spacing section, and spacing section of diameter is more than axially extending bore internal diameter, and fairlead 5 lower surface is to spacing section
Maximum up stroke limits；The connectivity part of the second hydraulic pressure oil duct 42 and hydraulic piston 2a is positioned at the height of cannelure 5a
In the range of journey；Oil pressure difference in first hydraulic pressure oil duct 41 and the second hydraulic pressure oil duct 42 promotes piston rod 1 along fairlead 5 axially extending bore
Move up and down.
Described bent axle includes first crankshaft section the 61, second crankshaft section 62, three-crankshaft section the 63, the 4th crankshaft section 64 and the 5th
Crankshaft section 65；Conventional crankshafts crank arm is comprised by each crankshaft section, and i.e. crank arm is inside trunnion.
Being connected by hydraulic oil guide pillar I 71 between described first crankshaft section 61 and the second crankshaft section 62, described hydraulic oil is led
Post I 71 is separately fixed on the first crankshaft section 61 and the second crankshaft section 62 through radial direction through hole 3a and the two ends of a VCR connecting rod；
It is provided with oil input channel I 61a in described first crankshaft section 61, in described second crankshaft section 62, is provided with the second separate bent axle elongation
Oil duct 62a and the second bent axle shrink oil duct 62b；The first separate guide pillar oil duct I it is provided with in described hydraulic oil guide pillar I 71
71a and the second guide pillar oil duct I 71b, the first guide pillar oil duct I 71a and oil input channel I 61a, the first hydraulic pressure oil duct of a VCR connecting rod
41 and second bent axle elongation oil duct 62a be connected, the second guide pillar oil duct I 71b and the second hydraulic pressure oil duct 42 of a VCR connecting rod and
Second bent axle shrinks oil duct 62b and is connected.
Described second crankshaft section 62, between three-crankshaft section 63 and the 4th crankshaft section 64 by hydraulic oil guide pillar II 72 phase
Even, described hydraulic oil guide pillar II 72 is through the radial direction through hole 3a of the 2nd VCR connecting rod, three-crankshaft section 63 and the 3rd VCR connecting rod
Radial direction through hole 3a and two ends are separately fixed on the second crankshaft section 62 and the 4th crankshaft section 64；It is provided with in described 4th crankshaft section 64
The 4th separate bent axle elongation oil duct 64a and the 4th bent axle shrink oil duct 64b；It is provided with phase in described hydraulic oil guide pillar II 72
The first the most independent guide pillar oil duct II 72a and the second guide pillar oil duct II 72b, the first guide pillar oil duct II 72a and the elongation of the second bent axle
Oil duct 62a, the first hydraulic pressure oil duct 41 of the first hydraulic pressure oil duct the 41, the 3rd VCR connecting rod of the 2nd VCR connecting rod and the elongation of the 4th bent axle
Oil duct 64a is connected, and the second guide pillar oil duct II 72b and the second bent axle shrink oil duct 62b, the second hydraulic oil of the 2nd VCR connecting rod
Second hydraulic pressure oil duct 42 of road the 42, the 3rd VCR connecting rod and the 4th bent axle shrink oil duct 64b and are connected.
Being connected by hydraulic oil guide pillar III 73 between described 4th crankshaft section 64 and the 5th crankshaft section 65, described hydraulic oil is led
Post III 73 is separately fixed at the 4th crankshaft section 64 and the 5th crankshaft section 65 through radial direction through hole 3a and the two ends of the 4th VCR connecting rod
On；It is provided with oil input channel II 65a in described 5th crankshaft section 65, is provided with separate first in described hydraulic oil guide pillar III 73 and leads
Post oil duct III 73a and the second guide pillar oil duct III 73b, the first guide pillar oil duct III 73a and the 4th bent axle elongation oil duct 64a and the 4th
First hydraulic pressure oil duct 41 of VCR connecting rod is connected, and the second guide pillar oil duct III 73b and the 4th bent axle shrink oil duct 64b, the 4th VCR
Second hydraulic pressure oil duct 42 and oil input channel II 65a of connecting rod are connected.
By five crankshaft sections and three hydraulic oil guide pillars by the first hydraulic pressure oil duct 41 and the second hydraulic pressure of four piston bush
Oil duct 42 connects, when hydraulic oil enters from oil input channel I 61a of the first crankshaft section 61, and the first hydraulic pressure oil duct of four piston bush
41 oil-feeds, four piston rods 1 stretch out under the effect of hydraulic oil liquid pressure, simultaneously the hydraulic pressure of four the second hydraulic pressure oil ducts 42
Oil flows out from oil input channel II 65a of the 5th crankshaft section 65, so that inline four-cylinder engine obtains higher compression ratio；Work as hydraulic pressure
Oily when oil input channel II 65a of the 5th crankshaft section 65 enters, the second hydraulic pressure oil duct 42 oil-feed of four piston bush, four piston rods
1 shortens under the effect of hydraulic oil liquid pressure, the hydraulic oil of four the first hydraulic pressure oil ducts 41 entering from the first crankshaft section 61 simultaneously
Oil duct I 61a flows out, so that inline four-cylinder engine obtains relatively low compression ratio；Can be protected by external hydraulic locking loop
Hold inline four-cylinder engine compression ratio to fix at certain value, so that engine compression ratio changes within a certain range, it is achieved straight
Row four cylinder engine compression ratio adjustable.
In the present embodiment, each crankshaft section being provided with stairstepping installing hole with the respective pistons set place of cooperation, described stairstepping is pacified
Dress hole include for the first installing hole 601 that driving end 3 side is connected and for the side with corresponding hydraulic oil guide pillar
The second installing hole 602 being connected, the aperture of described second installing hole 602 is less than the aperture of the first installing hole 601；Described
The inwall of one installing hole 601 is provided with bearing shell 8, and described bearing shell 8 is provided with oilhole 8a, and each crankshaft section is provided with and oilhole
The oil leab (not shown) of 8a connection；Described second installing hole 602 is provided with the sealing ring peace for installing sealing ring
Tankage；The technique mouth that each oil duct produces all uses vexed plug 9 to block, it is ensured that the normal use of oil duct function.
In the present embodiment, the two ends of each hydraulic oil guide pillar stretch out formation limiting section 701, described limiting section 701 and the
Two installing hole 602 form-fit also limit the degree of freedom of corresponding hydraulic oil guide pillar；Limiting section 701 can be the end of hydraulic oil guide pillar
The structure that both sides are formed after being cut by right-angle surface, positions and limits the degree of freedom of corresponding hydraulic oil guide pillar；Hydraulic oil guide pillar II 72
Length longer, in addition to two ends are supported by the second crankshaft section 62 and the 4th crankshaft section 64, middle part also by three-crankshaft section 63
Support, thus improve the rigidity of hydraulic oil guide pillar II 72.
Finally illustrating, above example is only in order to illustrate technical scheme and unrestricted, although with reference to relatively
The present invention has been described in detail by good embodiment, it will be understood by those within the art that, can be to the skill of the present invention
Art scheme is modified or equivalent, and without deviating from objective and the scope of technical solution of the present invention, it all should be contained at this
In the middle of the right of invention.
Claims (6)
1. an in-line four cylinder VCR electromotor hydraulic control crankshaft rod structure, it is characterised in that: include bent axle and be arranged on bent axle
A VCR connecting rod, the 2nd VCR connecting rod, the 3rd VCR connecting rod and the 4th VCR connecting rod；
The structure of a described VCR connecting rod, the 2nd VCR connecting rod, the 3rd VCR connecting rod and the 4th VCR connecting rod is identical and all includes living
Stopper rod, piston bush and fairlead；
The shaft section of described piston bush is inverted T-shaped structure, and the vertical section of inverted T-shaped structure forms piston end, inverted T-shaped structure horizontal
Section forms driving end, and described piston end end face is provided with axial hydraulic piston；Described driving end is provided with radial direction through hole；Live
The solid section of plug sleeve is provided with the first separate hydraulic pressure oil duct and the second hydraulic pressure oil duct, one end of the first hydraulic pressure oil duct with
Radial direction through hole connection, the other end connect with the bottom surface of hydraulic piston, and one end of the second hydraulic pressure oil duct connects with radial direction through hole, separately
One end connects with in the middle part of hydraulic piston；
Described fairlead is column with variable cross-sections, the T-shaped structure of shaft section of described fairlead, and the vertical section of T-shaped structure is socketed in liquid
In pressure plunger shaft, the traversing section of T-shaped structure is connected with piston end end face, is provided with axially extending bore, bottom in the middle part of described fairlead
Being provided with cannelure, described cannelure connects with fairlead lower surface；
Described piston rod is socketed in the axially extending bore of fairlead, and can relatively slide between piston rod and fairlead, piston rod
Lower end is provided with spacing section, and spacing section of diameter is more than axially extending bore internal diameter, and fairlead lower surface is to every trade in the maximum of spacing section
Cheng Jinhang limits；In the range of the connectivity part of the second hydraulic pressure oil duct and hydraulic piston is positioned at the elevation of cannelure；
Described bent axle includes the first crankshaft section, the second crankshaft section, three-crankshaft section, the 4th crankshaft section and the 5th crankshaft section；
Being connected by hydraulic oil guide pillar I between described first crankshaft section and the second crankshaft section, described hydraulic oil guide pillar I is through first
The radial direction through hole of VCR connecting rod and two ends are separately fixed on the first crankshaft section and the second crankshaft section；Set in described first crankshaft section
There is oil input channel I, be provided with the second separate bent axle elongation oil duct in described second crankshaft section and the second bent axle shrinks oil duct；Institute
The first separate guide pillar oil duct I and the second guide pillar oil duct I, the first guide pillar oil duct I and oil-feed it is provided with in stating hydraulic oil guide pillar I
First hydraulic pressure oil duct of road the I, the oneth VCR connecting rod and the second bent axle elongation oil duct are connected, the second guide pillar oil duct the I and the oneth VCR
Second hydraulic pressure oil duct of connecting rod and the second bent axle shrink oil duct and are connected；
It is connected by hydraulic oil guide pillar II between described second crankshaft section, three-crankshaft Duan Yu tetra-crankshaft section, described hydraulic oil
Guide pillar II is solid respectively through radial direction through hole, three-crankshaft section and the radial direction through hole of the 3rd VCR connecting rod and the two ends of the 2nd VCR connecting rod
It is scheduled on the second crankshaft section and the 4th crankshaft section；Be provided with in described 4th crankshaft section separate 4th bent axle elongation oil duct and
4th bent axle shrinks oil duct；The first separate guide pillar oil duct II and the second guide pillar oil duct it is provided with in described hydraulic oil guide pillar II
II, the first guide pillar oil duct II and the second bent axle elongation oil duct, the first hydraulic pressure oil duct of the 2nd VCR connecting rod, the of the 3rd VCR connecting rod
One hydraulic pressure oil duct and the 4th bent axle elongation oil duct are connected, and the second guide pillar oil duct II and the second bent axle shrink oil duct, the 2nd VCR even
Second hydraulic pressure oil duct of bar, the second hydraulic pressure oil duct of the 3rd VCR connecting rod and the 4th bent axle shrink oil duct and are connected；
Being connected by hydraulic oil guide pillar III between described 4th crankshaft section and the 5th crankshaft section, described hydraulic oil guide pillar III is through the
Radial direction through hole and the two ends of four VCR connecting rods are separately fixed on the 4th crankshaft section and the 5th crankshaft section；In described 5th crankshaft section
It is provided with oil input channel II, in described hydraulic oil guide pillar III, is provided with the first separate guide pillar oil duct III and the second guide pillar oil duct III,
First guide pillar oil duct III is connected with the first hydraulic pressure oil duct of the 4th bent axle elongation oil duct and the 4th VCR connecting rod, the second guide pillar oil
Road III shrinks oil duct, the second hydraulic pressure oil duct of the 4th VCR connecting rod and oil input channel II with the 4th bent axle and is connected.
In-line four cylinder VCR electromotor hydraulic control crankshaft rod structure the most according to claim 1, it is characterised in that: each bent axle
Being provided with stairstepping installing hole at the set cooperation of Duan Shangyu respective pistons, described stairstepping installing hole includes for joining with driving end side
Close the first installing hole connected and for the second installing hole being connected with the side of corresponding hydraulic oil guide pillar, described second peace
The aperture in dress hole is less than the aperture of the first installing hole.
In-line four cylinder VCR electromotor hydraulic control crankshaft rod structure the most according to claim 2, it is characterised in that: described
The inwall of one installing hole is provided with bearing shell, described bearing shell is provided with oilhole, and each crankshaft section is provided with and connects with oilhole
Oil leab.
In-line four cylinder VCR electromotor hydraulic control crankshaft rod structure the most according to claim 2, it is characterised in that: each hydraulic pressure
The two ends of oil guide pillar stretch out formation limiting section, described limiting section and the second installing hole form-fit limit corresponding hydraulic oil
The degree of freedom of guide pillar.
In-line four cylinder VCR electromotor hydraulic control crankshaft rod structure the most according to claim 2, it is characterised in that: described
Two installing holes are provided with the sealing ring mounting groove for installing sealing ring.
In-line four cylinder VCR electromotor hydraulic control crankshaft rod structure the most according to claim 1, it is characterised in that lead described in:
Traversing section to set is pressed solidly at piston end end face by a pressing plate, and pressing plate, fairlead and piston end are provided with corresponding connecting hole, connects
Part penetrates connecting hole and pressing plate, fairlead and piston end is linked together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610843523.1A CN106194429A (en) | 2016-09-22 | 2016-09-22 | In-line four cylinder VCR electromotor hydraulic control crankshaft rod structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610843523.1A CN106194429A (en) | 2016-09-22 | 2016-09-22 | In-line four cylinder VCR electromotor hydraulic control crankshaft rod structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106194429A true CN106194429A (en) | 2016-12-07 |
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| CN201610843523.1A Pending CN106194429A (en) | 2016-09-22 | 2016-09-22 | In-line four cylinder VCR electromotor hydraulic control crankshaft rod structure |
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Application publication date: 20161207 |