CN106481477A - A kind of hydraulic motor-driven variable-compression-ratio piston - Google Patents
A kind of hydraulic motor-driven variable-compression-ratio piston Download PDFInfo
- Publication number
- CN106481477A CN106481477A CN201610907431.5A CN201610907431A CN106481477A CN 106481477 A CN106481477 A CN 106481477A CN 201610907431 A CN201610907431 A CN 201610907431A CN 106481477 A CN106481477 A CN 106481477A
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- Prior art keywords
- hydraulic
- hydraulic motor
- runner
- piston
- compression
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F3/00—Pistons
- F02F3/0015—Multi-part pistons
-
- 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
- F02B75/044—Engines with variable distances between pistons at top dead-centre positions and cylinder heads by means of an adjustable piston length
-
- 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
-
- 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
- F02D15/04—Varying compression ratio by alteration of volume of compression space without changing piston stroke
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2700/00—Mechanical control of speed or power of a single cylinder piston engine
- F02D2700/03—Controlling by changing the compression ratio
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
- Hydraulic Motors (AREA)
Abstract
The present invention discloses a kind of hydraulic motor-driven variable-compression-ratio piston, including top land, piston skirt, hydraulic motor mechanism, runner, reducing gear and import and export oil duct；Respectively there is a cavity top land and piston skirt, hydraulic motor mechanism is placed in the cavity of piston skirt, runner is in top land, four circle spiral laminas on runner are matched with four spiral salients of top land, contact portion between hydraulic motor and runner is the reducing gear constituting with driving gear, planetary gear and internal gear, and hydraulic motor is mainly made up of the oblong cavity of hydraulic base, hydraulic vane, hydraulic baffle plate, Packing spring and piston skirt；Pressure oil enters so that hydraulic vane rotates in oval oil pocket from oil input channel, thus driving runner to rotate, in the presence of guide rod so that top land with respect to piston skirt relative motion thus changing the compression ratio of electromotor.
Description
Technical field
A kind of a kind of the present invention relates to piston of automotive engine, it is more particularly related to hydraulic motor-driven
Variable-compression-ratio piston.
Background technology
Compression ratio is the ratio of cylinder total volume and combustion chamber volume, when it represents that piston moves to top dead centre by lower dead center
The degree that cylinder interior gas are compressed, is the important parameter of measured engine performance, be impact engine efficiency most important because
One of element.In general, compression ratio is higher, and the performance of electromotor is better.For traditional electromotor, press once designing it
Contracting is more changeless than being, because combustion chamber volume and displacement are all fixing parameters.Modern Automobile Engine
Compression ratio gasoline engine generally 8～12, diesel engine is generally 12-22.
Changeable compression ratio technique is primarily directed to a kind of technology of engine with supercharger.Fixing compression ratio can not give full play to
The performance of electromotor, in fact in Smaller load, low-speed running, the thermal efficiency of electromotor is low, and correspondingly comprehensive comparison is poor,
At this moment can with larger compression ratio, and in big load, high rotation speed operation, if compression ratio is too high, be easy to pinking
And produce very big thermic load and mechanical load, at this moment can use less compression ratio.Change with load continuously adjusts pressure
Contracting ratio, can excavate the potentiality of electromotor to greatest extent so as to effectively improve the thermal efficiency in whole conditioned area, Jin Erti
The combination property of high electromotor.
Can using changeable compression ratio technique：
1. improve the thermal efficiency of electromotor, largely improve the fuel economy of electromotor.
2. advantageously reduce discharge.
3. there is good fuel tolerance.
4. in the case of identical output, structure can be more compact, reaches small-displacement high-power, high pulling torque.
5. take into account dynamic property during fuel economy and big load during sub-load, improve low engine speed power performance
While also avoid risk for knock in combustion process.
6. operation stability can be improved to a certain extent, reduce noise.
Domestic and international general all complex structures of variable compression ratio of engines at present, it usually needs engine structure is carried out significantly
Change, processing difficulties sometimes, how to simplify the internal structure of an organization so that now preferable effect is that need to solving asks in limited space interior-excess
Topic；The movable parts such as those newly-increased controls and auxiliary body result in the increase of vibration, friction loss and abrasion, also makes
Engine quality increases, and the mobile needs of these big mass bodies expend a big chunk energy；Change electromotor exactly in good time
Compression ratio, need corresponding high precision control apparatus, difficulty of matching is big；When compression ratio is too high, gas leakage can consume electromotor
Power, and lead to the fault of the parts such as engine body.If excessive gaseous mixture leaks in crankcase, lubricating oil can be caused
Rotten；Research and development and manufacturing cost are high.
Content of the invention
The technical problem to be solved be overcome that mechanism structure existing for prior art is complicated, part is many,
The problems such as manufacturability is poor, R＆D costs are high is it is proposed that a kind of hydraulic motor-driven variable-compression-ratio piston.
For solving above-mentioned technical problem, the present invention adopts the following technical scheme that realization：
A kind of variable lift compression ratio piston it is characterised in that described piston broken become top land and piston skirt
Two, portion part；Eight fastening springs insert in the circular hole of hydraulic base, then eight hydraulic vanes are also inserted into hydraulic base
Rectangular opening, above-mentioned device is hydraulic motor rotating machine structure, hydraulic motor rotating machine structure is arranged on the circular hole of piston skirt
In, and hydraulic pressure plate washer in rotating mechanism upper cover, spline is inserted in the splined hole of hydraulic base；By reducing gear so that
Runner slows down, increases and turn round, and installs ball bearing in the boss side surfaces of runner, and with two panels end cap, runner is fixed on around axial-movement
Degree of freedom in, the arch hole on end cap is penetrated by the circular port fixed seat of hydraulic baffle plate, then snap ring is placed on piston skirt
In the annular groove in portion, for fixing end cap；Top land is placed on piston skirt, the column rod insertion hydraulic pressure of top land
In the circular port fixed seat of baffle plate, play the guide effect of top land, the spiral on the semi-cylindrical hill of top land and runner
Printed line contacts.
Described piston top partial cut-away center is a big cavity, and the bottom surface periphery of cavity is uniformly distributed four columns
Rod, respectively has a semi-cylindrical hill on column rod.
The disjunction face center of described piston skirt is drilled with a circular hole, and there is a circle annular groove side of circular hole, under circular hole
Drill with ferrule has a big elliptical cavity, and cavity floor is drilled with a circular hole, is used for laying hydraulic base, the pin-and-hole at piston skirt
Left and right side is respectively drilled with an oil duct upwards, and left and right oil duct length is different, and the terminal of two sections of oil ducts is all with the circle of 30 degree and 150 degree
Arc stretches out, subsequently in oblong cavity.
Described runner is a round wheel construction, is uniformly distributed four spiral laminas in the outside of circle wheel, at the bottom of circle wheel
Seat is a column, and the bottom of column is round boss, for the fixation of circle wheel, is drilled with female thread in raised head face.
Described reducing gear is three planetary gears internal tooth in driving gear internal messing, with runner boss simultaneously respectively
Take turns internal messing to constitute reducing gear.
The main body of described hydraulic vane is a cuboid, and is rounded down, and is a cylinder in the end face of cuboid
Support stick.
Described hydraulic base is a cylindrical structural, and the centre of cylinder end face is drilled with splined hole, and the side of cylinder is equal
Even be dispersed with eight rectangular openings, the surface of rectangular opening is parallel with cylinder end face, and the center of the bottom surface of rectangular opening is inwardly drilled with circular hole.
Described hydraulic baffle plate is a circular plate type structure, and the centre of plectane is a circular hole and the boss gap of spline is joined
Close, four circle hole shape fixed seats of surrounding's distribution of plectane.
The side of described hydraulic vane is in close contact with the oblong cavity side of piston skirt, and due to fastening spring
Pretightning force make to exist certain pressure between contact surface.
Compared with prior art the invention has the beneficial effects as follows：
1. the present invention is only processed and increases corresponding part and a set of hydraulic control system to internal piston, and not
The overall structure changing cylinder is so that mechanism structure is simple.
2. the present invention is used as driving force by the rotation of hydraulic motor, and compact conformation, overall size are less, noise is low, the longevity
Life length.
3. the present invention is after the torque that hydraulic motor provides, and the threaded engagement through between runner and top land is realizing pressing
The change of contracting ratio, reliable operation.
4. the present invention is few because processing part, and is the reprocessing that piston is carried out, so low cost of manufacture.
Brief description
The present invention is further illustrated below in conjunction with the accompanying drawings：
Fig. 1 is the main sectional view of hydraulic motor-driven variable-compression-ratio piston of the present invention.
Fig. 2 is the C-C projection view shown in Fig. 1.
Fig. 3 is the D-D projection view shown in Fig. 1.
Fig. 4 is the E-E projection view shown in Fig. 1.
Fig. 5 is the oblique view removing after top land of invention components.
Fig. 6 is the front view of runner part of the present invention.
Fig. 7 is the top view of runner part of the present invention.
Fig. 8 is the front view of inventive piston top piece.
Fig. 9 is the B-B projection view of front view in Fig. 8.
Figure 10 is the front view of hydraulic vane.
Figure 11 is the left view of hydraulic vane.
Figure 12 is the front view of hydraulic base.
Figure 13 is the A-A projection view of front view in Figure 12.
Figure 14 is the main sectional view of piston skirt.
Figure 15 is the B-B projection view of the main section view of Figure 14.
Figure 16 is the C-C projection view of the main section view of Figure 14.
In figure：1- top land, 2- fastening spring, 3- runner, 4- snap ring, 5- end cap, 6- ball bearing, 7- hydraulic pressure keeps off
Plate, 8- hydraulic vane, 9- Packing spring, 10- piston skirt, 11- spline, 12- hydraulic base, 13- planetary gear, 14- is actively
Gear.
Specific embodiments
Below in conjunction with the accompanying drawings the present invention is explained in detail：
Refering to Fig. 1 and Fig. 2, piston is divided into top land 1 and piston skirt 10 two large divisions along disjunction face, in two parts
Constitute cavity in be equipped with hydraulic motor and runner 3, be drilled with two oil ducts in piston skirt 10, for hydraulic motor provide into
Outlet oil circuit, has the connection that pitman is used for fastening spring 2 in four circular holes of the outer wall of top land 1.
Refering to Fig. 8 and Fig. 9, the center in top land 1 disjunction face is a big cavity, uniform in the bottom periphery of cavity
Four column rods of distribution, column rod respectively has the projection of a semi-circular structure, and direction is inside, by the spiral of semi arch and runner
Printed line contacts so that moving in top land 1 opposing pistons skirt section 10.
Refering to Figure 14, Figure 15 and Figure 16, piston skirt 10 disjunction face center is a big cavity, and the upper end of cavity is drilled with
One circle annular groove, the chamber generally circular in shape of cavity, the bottom of circular cavity is divided into slotted eye, oval major axis and top land
1 cavity radius are equal, and the elliptical aperture bottom surface of piston skirt 10 is drilled with a circular hole, and circular hole is used for the fixation of hydraulic base 12,
The perimeter in piston skirt 10 disjunction face is uniformly distributed four fastening spring 2 attachment means corresponding with top land 1；Living
The plug skirt section 10 pin-and-hole left and right sides is drilled with into and out of oil duct along piston axis direction, and two oil duct length are different, and the terminal of oil input channel is divided
Not with 30 degree of horizontal direction, 150 degree along oval bore edges extension, subsequently into oval in the hole, likewise, the terminal of oil road
Extended along oval bore edges with 30 degree, 150 degree rightabouts of horizontal direction, subsequently into oval in the hole.
Refering to Fig. 1 and Fig. 2, hydraulic baffle plate 7 is a circular plate type structure, and it is convex with spline that the centre of plectane is a circular hole
Platform gap coordinates, four circle hole shape fixed seats of surrounding's distribution of plectane.
Refering to Fig. 6 and Fig. 7, runner 3 is a cylindrical structural, is dispersed with four spiral tabular knots in the outside of cylinder
Structure, is a column in the bottom of circle wheel, the bottom of column is round boss, for the fixation of circle wheel, inside boss is
Female thread structure.
Refering to Figure 10 and Figure 11, the main body of hydraulic vane 8 is a cuboid, and is rounded down, in the end face of cuboid
It is a cylindrical body supports rod.
Refering to Figure 12 and Figure 13, hydraulic base 12 is a cylindrical structure, is drilled with splined hole, cylinder at the center of cylinder
Side be evenly distributed with eight cuboid openings at the axis of cylinder, the opening surface of cuboid opening and cylindrical end face
Concordantly, it is drilled with circular hole for the installation of Packing spring in rectangular internal one side.
Refering to Fig. 1, Fig. 2 and Fig. 5, Packing spring 9 is placed in the circular hole of hydraulic base 12, then by eight hydraulic vanes
8 cylindrical portion is inserted in the circular hole of hydraulic base 12, and mechanism described above is hydraulic rotation mechanism, by hydraulic pressure above
Rotating mechanism is laid on the circular hole of piston skirt 10 slotted eye bottom surface by hydraulic base 12, splined hole upward, eight hydraulic pressure
The side of blade 8 is contacted with piston skirt 10 slotted eye side, and makes there is one between two contact surfaces by Packing spring 9
Fixed pressure.Hydraulic baffle plate 7 is placed on above hydraulic rotation mechanism, the side of hydraulic baffle plate 7 and piston skirt 10 were
It is full of cooperation；Spline 11 is inserted in the splined hole of hydraulic base 12, spline 11 upper end is driving gear 14, three planetary gears 13
It is evenly distributed between the female thread on driving gear 14 and runner 3, planetary gear 13 and driving gear 14 external toothing, three
The contacts side surfaces of the female thread internal messing on planetary gear 13 and runner 3, the inner headed face of ball bearing 6 and runner 3 boss, two panels
End cap 5 is placed on hydraulic baffle plate 7 and constrains in the end face of end cap 5 on the direction that piston axis rotate by runner 3, end cap
5 arch hole penetrates the circular hole fixed seat of hydraulic baffle plate 7, and with snap ring 4, end cap 5 is fixing；Four columns by top land 1
Rod is placed in the circular hole fixed seat of hydraulic baffle plate 7, can move up and down, and coordinates and coordinates for gap, and half boss on column rod
Play the spiral lamina linear contact lay on structure and runner 3, the disjunction face of top land 1 is overlapped with the disjunction face of piston skirt 10 and presses
Tightly, then with four fastening springs 2, top land 1 is coupled together with piston skirt 10, prevent piston in strenuous exercise's process
The middle play making piston generation not be subject to manual control because of inertia force and impulsive force.
Refering to Fig. 1, Fig. 3, Fig. 4, Figure 14, when electromotor needs high compression ratio, hydraulic oil passes through the pin of piston skirt 10
Oil input channel at hole flows upwardly into and level flows to oblong cavity along 30 degree with 150 degree, and the oil pocket area of oil-feed intracavity is more than
Fuel-displaced cavity area, oil-feed cavity pressure is more than fuel-displaced cavity pressure, so hydraulic vane 8 rotates forward, drives driving gear by spline 11
14 rotating forwards, now the rotating speed height of driving gear 14, torque are little, increase torsion effect, the rotating speed of runner 3 through the deceleration of planetary gear 13
Diminish, torque increases, runner 3 passes through spiral lamina contact with top land 1 semi-circular projection, solid through the circular hole on hydraulic baffle plate 7
The guide effect of reservation so that top land 1 overcomes the effect of fastening spring 2 pretightning force with respect to piston skirt 10 apart from rising,
Now compression ratio increases.
Refering to Fig. 1, Fig. 3, Fig. 4 and Figure 14, in the same manner, when electromotor needs low compression ratio, hydraulic oil is from piston skirt 10
The oil outlet of pin-and-hole flow upwardly into and level along 30 degree with 150 degree flow into oblong cavity, now, go out oil pocket pressure be more than into
Pressure in oil pocket, so hydraulic vane 8 inverts, the transmission through driving gear 14 for the hydraulic vane 8, the deceleration of planetary gear 13,
Increase and turn round, rotating speed is passed to runner 3, runner 3 inverts, top land 1 is under the pretightning force effect of fastening spring with respect to piston
There is low compression ratio in skirt section 10 apart from reduction, now electromotor.
Claims (9)
1. a kind of hydraulic motor-driven variable-compression-ratio piston is it is characterised in that described hydraulic motor-driven pressure-variable
Contracting includes piston body top (1), runner (3), piston skirt (10), hydraulic vane (8), hydraulic base (12), hydraulic pressure than piston
Baffle plate (7), driving gear (14), planetary gear (13), Packing spring (9)；
Described piston broken one-tenth top land (1) and (10) two, piston skirt part；Eight fastening springs (2) insert liquid
In the circular hole of pressure base (12), then eight hydraulic vanes (8) are also inserted into the rectangular opening of hydraulic base (12), above-mentioned device
For hydraulic motor rotating machine structure, hydraulic motor rotating machine structure is arranged in the circular hole of piston skirt (10), and in rotating mechanism
Hydraulic pressure plate washer (7) in upper cover, spline (11) is inserted in the splined hole of hydraulic base (12)；Runner is made by reducing gear
(3) slow down, increase and turn round, in the boss side surfaces of runner (3), ball bearing (6) is installed, and with two panels end cap (5), runner (3) is fixing
In the degree of freedom of axial-movement, the arch hole on end cap (5) is penetrated by the circular port fixed seat of hydraulic baffle plate (7), then
Snap ring (4) is placed in the annular groove of piston skirt (10), for fixing end cap (5)；Top land (1) is placed on piston
On skirt section (10), in the circular port fixed seat of column rod insertion hydraulic baffle plate (7) of top land (1), play top land (1)
Spiral lamina linear contact lay on guide effect, the semi-cylindrical hill of top land (1) and runner (3).
2. a kind of hydraulic motor-driven variable-compression-ratio piston according to claim 1 is it is characterised in that described work
Plug top (1) disjunction face center be a big cavity, the bottom surface periphery of cavity is uniformly distributed four column rods, column rod to
Respectively there is a semi-cylindrical hill on interior.
3. a kind of hydraulic motor-driven variable-compression-ratio piston according to claim 1 is it is characterised in that described work
The disjunction face center of plug skirt section (10) is drilled with a circular cavity, and cavity side has a circle annular groove, and the bottom surface of cavity is drilled with one
Individual big slotted eye, elliptical aperture bottom surface is also drilled with a circular hole, is used for laying hydraulic base (12), piston skirt (10) place
Pin-and-hole left and right side is respectively drilled with an oil duct upwards, and left and right oil duct length is different, the terminal of two sections of oil ducts all in the horizontal direction with
30 degree and 150 degree of circular arc extends along oval bore edges, subsequently in slotted eye.
4. a kind of hydraulic motor-driven variable-compression-ratio piston according to claim 1 is it is characterised in that described turns
Wheel (3) is a cylindrical structure, is uniformly distributed four spiral laminas in cylindrical outside, is one in cylindrical base
Column, the bottom of column is round boss, for the fixation of circle wheel, is drilled with female thread in boss inner face.
5. a kind of hydraulic motor-driven variable-compression-ratio piston according to claim 1 is it is characterised in that described subtracts
Fast mechanism is in the female thread in three planetary gears (13) difference driving gear (14) external toothings, with runner (3) boss simultaneously
Engage and to constitute reducing gear.
6. a kind of hydraulic motor-driven variable-compression-ratio piston according to claim 1 is it is characterised in that described liquid
The main body of pressure blade (8) is a cuboid, and is rounded down, and is a cylindrical support rod in the end face of cuboid.
7. a kind of hydraulic motor-driven variable-compression-ratio piston according to claim 1 is it is characterised in that described liquid
Pressure base (12) is a cylindrical structure, and the centre of cylinder end face is drilled with splined hole, and the side of cylinder is uniform-distribution with eight
Rectangular aperture, the opening surface of rectangular aperture is parallel with cylinder end face, and the medial surface level of rectangular opening is inwardly drilled with circular hole.
8. a kind of hydraulic motor-driven variable-compression-ratio piston according to claim 1 is it is characterised in that described liquid
Pressure baffle plate (7) is a circular plate type structure, and the centre of plectane is the boss gap cooperation of a circular hole and spline (11), plectane
Surrounding is distributed four circle hole shape fixed seats.
9. a kind of hydraulic motor-driven variable-compression-ratio piston according to claim 1 is it is characterised in that described liquid
The side of pressure blade (8) is in close contact with the elliptical aperture side of piston skirt (10), and because the pretightning force of fastening spring (2) makes
Obtain and there is certain precompression between contact surface.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610907431.5A CN106481477A (en) | 2016-10-18 | 2016-10-18 | A kind of hydraulic motor-driven variable-compression-ratio piston |
| CN201710156279.6A CN106762196B (en) | 2016-10-18 | 2017-03-16 | Hydraulic motor driven variable compression ratio piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610907431.5A CN106481477A (en) | 2016-10-18 | 2016-10-18 | A kind of hydraulic motor-driven variable-compression-ratio piston |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106481477A true CN106481477A (en) | 2017-03-08 |
Family
ID=58270181
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610907431.5A Withdrawn CN106481477A (en) | 2016-10-18 | 2016-10-18 | A kind of hydraulic motor-driven variable-compression-ratio piston |
| CN201710156279.6A Active CN106762196B (en) | 2016-10-18 | 2017-03-16 | Hydraulic motor driven variable compression ratio piston |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710156279.6A Active CN106762196B (en) | 2016-10-18 | 2017-03-16 | Hydraulic motor driven variable compression ratio piston |
Country Status (1)
| Country | Link |
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| CN (2) | CN106481477A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106837592A (en) * | 2017-04-14 | 2017-06-13 | 吉林大学 | A kind of double helix driven type Ratios piston |
| CN106884734A (en) * | 2017-04-14 | 2017-06-23 | 吉林大学 | A kind of variable-compression-ratio piston with axle sleeve |
| CN107472818A (en) * | 2017-08-14 | 2017-12-15 | 上海沃典工业自动化有限公司 | A kind of great wheel structure of APC collecting and sending conveyers |
| CN113217187A (en) * | 2021-06-24 | 2021-08-06 | 吉林大学 | Internal combustion engine crankshaft with variable compression ratio |
| CN113813860A (en) * | 2021-05-18 | 2021-12-21 | 江苏蛙鸣建筑装饰科技有限公司 | Epoxy terrace coating stirring equipment capable of quantitatively feeding |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19733139A1 (en) * | 1997-07-31 | 1999-02-04 | Fev Motorentech Gmbh & Co Kg | Influencing method for mixture formation and charge movement in IC engine |
| US7273022B2 (en) * | 2005-05-09 | 2007-09-25 | Francisco Azocar Valdivia | Concentric piston for variable compression ratio directly based on the combustion chamber pressure |
| DE102013021065A1 (en) * | 2013-12-18 | 2015-06-18 | Fev Gmbh | Piston machine with support piston |
| CN204532541U (en) * | 2015-03-26 | 2015-08-05 | 天津潜景技术咨询有限公司 | Double-crankshaft variable compression ratio engine |
| CN206555024U (en) * | 2016-10-18 | 2017-10-13 | 吉林大学 | A kind of hydraulic motor-driven variable-compression-ratio piston |
-
2016
- 2016-10-18 CN CN201610907431.5A patent/CN106481477A/en not_active Withdrawn
-
2017
- 2017-03-16 CN CN201710156279.6A patent/CN106762196B/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106837592A (en) * | 2017-04-14 | 2017-06-13 | 吉林大学 | A kind of double helix driven type Ratios piston |
| CN106884734A (en) * | 2017-04-14 | 2017-06-23 | 吉林大学 | A kind of variable-compression-ratio piston with axle sleeve |
| CN106884734B (en) * | 2017-04-14 | 2023-05-09 | 吉林大学 | Variable compression ratio piston with shaft sleeve |
| CN106837592B (en) * | 2017-04-14 | 2023-05-09 | 吉林大学 | Double-screw transmission type variable compression ratio piston |
| CN107472818A (en) * | 2017-08-14 | 2017-12-15 | 上海沃典工业自动化有限公司 | A kind of great wheel structure of APC collecting and sending conveyers |
| CN107472818B (en) * | 2017-08-14 | 2019-12-24 | 上海沃典工业自动化有限公司 | Head pulley structure of APC power and free conveyor |
| CN113813860A (en) * | 2021-05-18 | 2021-12-21 | 江苏蛙鸣建筑装饰科技有限公司 | Epoxy terrace coating stirring equipment capable of quantitatively feeding |
| CN113217187A (en) * | 2021-06-24 | 2021-08-06 | 吉林大学 | Internal combustion engine crankshaft with variable compression ratio |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106762196B (en) | 2023-05-23 |
| CN106762196A (en) | 2017-05-31 |
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Application publication date: 20170308 |