CN105888838A - Two-stroke opposed-piston internal combustion engine adopting rocker arm crank connecting rod mechanism - Google Patents
Two-stroke opposed-piston internal combustion engine adopting rocker arm crank connecting rod mechanism Download PDFInfo
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- CN105888838A CN105888838A CN201410773479.2A CN201410773479A CN105888838A CN 105888838 A CN105888838 A CN 105888838A CN 201410773479 A CN201410773479 A CN 201410773479A CN 105888838 A CN105888838 A CN 105888838A
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- axle
- connecting rod
- axle journal
- cylinder
- combustion engine
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Abstract
The invention provides an improved two-stroke opposed-piston internal combustion engine adopting a rocker arm crank connecting rod mechanism on the basis of a transmission mechanism of an opposed-piston internal combustion engine. In a power transmission mechanism of the two-stroke opposed-piston internal combustion engine, a crankshaft (3) is provided with shaft necks (1) symmetrically arranged at a distance of 180 degrees and shaft necks (2) on the two sides, and the compression force, the work force and the reciprocating inertial force on the crankshaft can be completely offset with one another, so that the crankshaft is only subjected to the rotation torque effect of the work force, and vibration of an engine is smaller. The large-diameter shaft necks are adopted by the crankshaft (3), and when connecting rods drive the crankshaft through rolling bearings (8), four-cylinder power units are arranged in series more advantageously so that larger-kinetioity engines with eight cylinders, twelve cylinders and sixteen cylinders can be manufactured due to the fact that the crankshaft can still keep enough torsional strength after being lengthened.
Description
Present disclosure relates to a kind of opposed internal combustion engine of piston, especially with rocker crank linkage
The opposed internal combustion engine of two-stroke piston.
Background technology is in the opposed internal combustion engine of piston of application number " 201410734996.9 ", although be also adopted by
Rocker crank linkage reduces radiation loss by electromotor, reduces the frictional force suffered by piston and allow bent axle
Suffered pressure by counteracting accordingly etc., but due on bent axle two be not symmetry cloth at a distance of the axle journal of 180 degree
Put, it is impossible to allow bent axle stress balance, electromotor still can there are certain vibrations completely.
The rocker crank linkage basis that summary of the invention it is an object of the invention at the opposed internal combustion engine of piston is enterprising
Row improves, and makes compression suffered on bent axle and work done pressure complete equipilibrium, and is also more suitable for making two-stroke
Internal combustion engine, thus allow the vibrations of electromotor be in minimum state.
In first embodiment of the invention, the two-stroke piston using rocker crank linkage is opposed interior
Combustion engine be included in the cylinder and both sides cylinder that the left and right sides of bent axle arranges equipped with piston and opposed pistons, bent
Having two on axle be separated by 180 ° of phase angles and be in the axle journal of crank arm both sides, lives in the bottom in the cylinder of left side
Plug with the top opposed pistons in the cylinder of right side respectively small rod through each side lower part and top be contained in by middle part
Support the rocking arm on seat axle and connecting rod is hinged with the axle journal on bent axle, the top opposed pistons in the cylinder of left side
Small rod through each upper lateral part and bottom is contained in support seat by middle part respectively with the lower piston in the cylinder of right side
Rocking arm and connecting rod on axle are hinged with another axle journal on bent axle, piston in left and right sides cylinder and right
Put on the two of piston position between point and spark plug or fuel injector are installed, in piston and opposed pistons lower dead center
It is respectively equipped with the scavenging port being connected with scavenging pump on position and leads to the air vent of exhaustor, with on bent axle
Axle journal is intermediate journal, forms two axle journals being arranged symmetrically with in the both sides of axle journal by the crank arm being connected,
The phase that the upside rocking arm inboard end of two connecting rods correspondingly stretched out upward from two side shaft journals and left cylinder stretches out
Answer two joints to be hinged, the downside rocking arm of two connecting rods stretched out downwards from two side shaft journals and right cylinder to
Corresponding two joints that the inner is stretched out are hinged, have between two joints on the rocking arm of upper and lower side allow,
The spacing distance that the interior end connector of downside rocking arm freely swings.
In the connecting rod that the direction up or down being hinged on axle journal is stretched out, the major part of side connecting rod wherein
Covering and be formed with key seat plate, the connecting rod of opposite side passes through articulating pin and the key seat plate on major part lid as slave connecting rod
It is hinged.
In a second embodiment of the present invention, installing, the mounting seat axially inner side of downside rocking arm corresponding
Mobile, the swinging distance making rocking arm inner suitably reduces, the axle journal on bent axle and the diameter of the axle journal of both sides
Corresponding expansion forms the song directly allowing the d-axis body of bent axle that the axle journal of major diameter is connected as a body without crank arm
Axle construction, is provided with the axle journal of the rolling bearing of installing connecting rods, axle journal and both sides on the axle journal of axle journal and both sides
Between spacing distance slightly larger than the thickness of rolling bearing, be taken at bent axle and load the diameter at rolling bearing side
Time bigger, it is formed with the cambered surface recess identical with journal diameter in this place, the also slightly larger than rolling of the width of this recess
The thickness of dynamic bearing, the rolling bearing being contained on each axle journal by the strap of both sides by the spiral shell through axle journal
Bolt axial restraint.
The big end being contained on major diameter rolling bearing connects the connecting rod stretching to upper and lower side by articulation structure,
The side up or down installed on the rolling bearing of axle journal and two side shaft journals is in the connecting rod stretched out, at it
In side connecting rod big end on be formed with key seat plate, the connecting rod of opposite side passes through joint as slave connecting rod
Pin is hinged with the key seat plate on big end, and the position of the bent axle being located in the cylinder of both sides is accordingly to connecting rod
Side offsets.
When the power unit of one group of four cylinder is connected, can be being on bent axle centrally located two
Individual adjacent axle journal makes maximum gauge, allows each journal diameter trace successively outside both sides reduce, and allows corresponding
The inner side rolling bearing of size the most easily moves past the axle journal of outside minor diameter.
The each collateral support seat installing downside rocking arm is on left and right separate integral structure component, two overall knots
Component is bolted integral, component and the support of downside based on the integral structure component of side therein
Frame formed one, bearing for crankshaft lid be arranged on based on component integral structure component on.
Owing to axle journal set on bent axle can be arranged symmetrically, make compression suffered on bent axle and work done pressure and
Inertia force is cancelled out each other completely, allows the work done torsion that bent axle is only rotated, and also can be greatly reduced electromotor
Vibrations.It addition, after the axle journal using major diameter forms diacytic type bent axle, be also beneficial to this four cylinders
The power unit of one group is connected, and forms eight cylinders, twelve-cylinder and 16 cylinder high-power engines.
The present invention is used the two-stroke piston of rocker crank linkage opposed below by accompanying drawing by accompanying drawing explanation
Internal combustion engine is described in detail.
Fig. 1 is the structure sectional view that the present invention uses the opposed internal combustion engine of two-stroke piston of rocker crank linkage.
Fig. 2 is the crankshaft structure figure of internal combustion engine in Fig. 1.
Fig. 3 is the rocking arm arrangement figure of internal combustion engine in Fig. 1.
Fig. 4 is the connecting rod and slave connecting rod structure chart being connected with upper and lower side rocking arm.
Fig. 5 is employing major diameter axle journal, makes axle journal opposed with the two-stroke piston that connecting rod is connected through rolling bearing
Structure of Internal-Combustion Engine sectional view.
Fig. 6 be in Fig. 5 the intermediate journal on d-axis crankshaft structure be separated by 180 degree two side shaft journals and on
Rolling bearing and the structure sectional view of connecting rod.
Detailed description of the invention uses the opposed internal combustion engine of two-stroke piston of rocker crank linkage in the present invention
In one embodiment, bent axle uses the structure of the axle journal being arranged symmetrically with, corresponding rocking arm layout and connecting rod such as
Shown in Fig. 1, Fig. 2, Fig. 3 and Fig. 4.In the opposed internal combustion engine of two-stroke piston that Fig. 1 is given, this interior
Combustion engine be included in bent axle 3 left and right sides arrange cylinder 11,11 ' and both sides cylinder in equipped with piston 12 and
Opposed pistons 13, bent axle 3 has the axle journal 1,2 being separated by 180 ° of phase angles, in left side cylinder 11 under
Portion's piston 12 and the top opposed pistons 13 in right side cylinder 11 ' are respectively through each side lower part and the little Lian on top
Bar 14, the rocking arm 15 being contained in by middle part on support seat axle 22 and connecting rod 24 and axle journal 1 phase on bent axle 3
Hinged, the top opposed pistons 13 in left side cylinder 11 is with the lower piston 12 in right side cylinder 11 ' respectively
Through the small rod 14 of each upper lateral part and bottom, it is contained in the rocking arm 17 supported on seat axle 22 ' by middle part and connects
Bar 25 is hinged with another axle journal 2 on bent axle 3, the piston 12 in left and right sides cylinder 11,11 '
With position is provided with spark plug or fuel injector 34 between point on the two of opposed pistons 13, form Diesel engine,
Just two-stroke gasoline engine is can be made into as installed spark plug.On the position of piston and opposed pistons lower dead center respectively
It is provided with the scavenging port 36 being connected with scavenging pump and the air vent 38 leading to exhaustor.Axle journal cloth on bent axle 3
Put as in figure 2 it is shown, with the axle journal 1 on bent axle 3 as intermediate journal, in the both sides of axle journal 1 by being connected
Crank arm 6 forms two axle journals being arranged symmetrically with 2, and two correspondingly stretched out upward from two side shaft journals 2 are even
Corresponding two joints 18 that bar 25 stretches out to upside rocking arm 17 inboard end of left cylinder 11 be hinged (referring to
Fig. 3), the downside rocking arm 17 of two connecting rods 25 stretched out downwards from two side shaft journals 2 and right cylinder 11 ' to
Corresponding two joints 18 that the inner is stretched out are hinged, between two joints 18 on upper and lower side rocking arm 17
There is the spacing distance allowing the interior end connector 16 of upper and lower side rocking arm 15 freely swing.
The bar linkage structure matched with bent axle in Fig. 23 as shown in Figure 4, axle journal 1,2 is hinged to
On or below in the connecting rod stretched out, if do not used the big header structure of forked link, it is possible to side wherein is even
Be formed with key seat plate 29 on the big skull 28 of bar 24,25, allow the connecting rod of opposite side as slave connecting rod 24 ',
25 ' are hinged with the key seat plate 29 on big skull 28 by articulating pin 30.
Owing to having added the crank arm 6 of two centres on the bent axle in Fig. 2, therefore use this crankshaft structure
Electromotor be only suitable for constituting single power unit, as this power unit series connection make high-power starting
Machine, it is possible to the problem that bent axle torsional strength is inadequate occur, for avoiding this not enough, it is possible to use Fig. 5 and
The second embodiment of the present invention in Fig. 6.The second two-stroke piston of the present invention in Figure 5 is opposed interior
In combustion engine, installing, the mounting seat axle 22,22 ' of downside rocking arm 15,17 carried out corresponding to inner side
Mobile, the swinging distance making rocking arm inner suitably reduces, the axle journal 1 on bent axle 3 and the axle journal 2 of both sides
Diameter expand accordingly, formed and directly allow the axle journal 1,2 of 7 major diameters of d-axis body of bent axle without crank arm
The crankshaft structure being connected as a body.The axle journal 2 of axle journal 1 and both sides is provided with the rolling bearing 8 of installing connecting rods,
Spacing distance between the axle journal 2 of axle journal 1 and both sides 5 is slightly larger than the thickness of rolling bearing 8, in order to allow shifting
Cross the rolling bearing of an axle journal after radial direction sidesway, can reinstall or move past another axle journal.At bent axle 3
Be taken in load at rolling bearing side when being relatively large in diameter, be formed with the face identical with axle journal 2 diameter in this place recessed
Mouth 39, the width of this recess is also slightly larger than the thickness of rolling bearing 8, in order to rolling bearing can be moved at this
Cross and load outermost axle journal.The rolling bearing 8 being contained on each axle journal is passed through by the strap 9 of both sides
Bolt 10 axial restraint through axle journal.
The bar linkage structure matched with major diameter bearing crankshaft as shown in Figure 6, is contained in major diameter rolling bearing 8
On big end 27 connected the connecting rod stretching to upper and lower side by articulation structure, at axle journal 1 and two side shaft journals
The side up or down installed on the rolling bearing 8 of 2 in the connecting rod stretched out, side connecting rod wherein
24, being formed with key seat plate 29 on the big end 27 of 25, the connecting rod of opposite side is as slave connecting rod 24 ', 25 '
It is hinged with the key seat plate 29 on connecting rod 24,25 major part by articulating pin 30, is located at both sides cylinder 11,11 '
In bent axle 3 position accordingly to connecting rod 24,25 side offset.
When the power unit of one group of four cylinder is connected, can be centrally located being on bent axle 3
Two adjacent axle journals 2 make maximum gauge, allow each journal diameter trace successively outside both sides reduce, allow
The inner side rolling bearing of corresponding size the most easily moves past the axle journal of outside minor diameter.
The each collateral support seat 23 installing downside rocking arm is on left and right separate integral structure component 40,41,
Two integral structure components are bolted integral, based on side therein integral structure component 41 component with
The base frame 42 of downside forms one, bent axle 3 be arranged on bearing cap based on the integral structure component of component
On 41.In above two two-stroke piston contraposition engine, owing to passing to the compression of bent axle, work done and past
Multiple inertia force is separated by 180 degree of axle journals being arranged symmetrically with and is completely counterbalanced by bent axle, bent axle itself is only rotated
Work done moment of torsion effect, add piston, rocking arm and connecting rod to dynamic layout, the past of electromotor can be greatly reduced
Multiple shaking force.In the second uses the crankshaft structure electromotor of major diameter axle journal, big end is being made
After overall structure, then the fastening bolt that the most desirable power of enjoying is the biggest in the drive mechanism of this electromotor,
The bolt of bearing cap of fixed crankshaft is only subjected to the action of gravity of bent axle, for positioning and rolling bearing 8 on axle journal
Bolt 10 stress less.
Claims (6)
1. use the opposed internal combustion engine of two-stroke piston of rocker crank linkage, be included in bent axle (3)
Left and right sides arrange cylinder (11,11 ') and both sides cylinder in equipped with piston (12) and opposed pistons (13),
There are on bent axle (3) two be separated by 180 ° of phase angles and be in the axle journal (1,2) of crank arm both sides, left side
Lower piston (12) in cylinder (11) and the top opposed pistons (13) in right side cylinder (11 ')
Respectively through each side lower part and top small rod (14), be contained in the rocking arm supported on seat axle (22) by middle part
(15) it is hinged with the axle journal (1) on bent axle (3), in left side cylinder (11) with connecting rod (24)
Top opposed pistons (13) and the lower piston (12) in right side cylinder (11 ') are respectively through each upper lateral part
And the small rod (14) of bottom, it is contained in the rocking arm (17) and connecting rod supported on seat axle (22 ') by middle part
(25) it is hinged with another axle journal (2) on bent axle (3), in left and right sides cylinder (11,11 ')
In piston (12) and opposed pistons (13) two on point between position spark plug or fuel injector (34) are installed,
Piston with the position of opposed pistons lower dead center are respectively equipped with the scavenging port (36) being connected with scavenging pump and
Lead to the air vent (38) of exhaustor, it is characterised in that: with the axle journal (1) on bent axle (3) as jackshaft
Neck, forms two axle journals being arranged symmetrically with (2) in the both sides of axle journal (1) by the crank arm being connected, accordingly
The upside rocking arm (17) of two connecting rods (25) that stretch out upward from two side shaft journals (2) of ground and left cylinder (11)
Corresponding two joints (18) that inboard end stretches out are hinged, two stretched out downwards from two side shaft journals (2)
Corresponding two joints (18) that connecting rod (25) stretches out to downside rocking arm (17) inboard end of right cylinder (11 ')
It is hinged, has between two joints (18) on upper and lower side rocking arm (17) and allow upper and lower side rocking arm
(15) spacing distance that interior end connector (16) freely swings.
The opposed internal combustion engine of two-stroke piston of employing rocker crank linkage the most according to claim 1,
It is characterized in that: in the connecting rod that the direction up or down being hinged on axle journal (1,2) is stretched out, wherein
Side connecting rod (24,25) big skull (28) on be formed with key seat plate (29), the connecting rod of opposite side is made
For slave connecting rod (24 ', 25 ') by articulating pin (30) and the key seat plate (29) on big skull (28)
It is hinged.
The opposed internal combustion engine of two-stroke piston of employing rocker crank linkage the most according to claim 1,
It is characterized in that: installing, the mounting seat axle (22,22 ') of downside rocking arm (15,17) is to inner side
Corresponding mobile, the swinging distance making rocking arm inner suitably reduces, the axle journal (1) and two on bent axle (3)
The diameter of the axle journal (2) of side expands accordingly, formed directly allow without crank arm the d-axis body (7) of bent axle
The crankshaft structure that the axle journal (1,2) of major diameter is connected as a body, at the axle journal (2) of axle journal (1) and both sides
It is provided with the rolling bearing (8) of installing connecting rods, the spacer between the axle journal (2) of axle journal (1) and both sides
From (5) slightly larger than the thickness of rolling bearing (8), bent axle (3) be taken in load at rolling bearing side straight
When footpath is bigger, it is formed with the cambered surface recess (39) identical with axle journal (2) diameter, the width of this recess in this place
The thickness of degree also slightly larger than rolling bearing (8), rolling bearing (8) the consolidating by both sides being contained on each axle journal
Clamp plate (9) is by bolt (10) axial restraint through axle journal.
The opposed internal combustion engine of two-stroke piston of employing rocker crank linkage the most according to claim 3,
It is characterized in that: the big end being contained on major diameter rolling bearing (8) by articulation structure connect stretch to,
Downside connecting rod, the rolling bearing (8) of axle journal (1) and two side shaft journals (2) is installed upwards or
In the connecting rod that direction, downside is stretched out, the upper shape of the big end (27) of side connecting rod (24,25) wherein
Becoming to have key seat plate (29), the connecting rod of opposite side passes through articulating pin (30) as slave connecting rod (24 ', 25 ')
It is hinged with the key seat plate (29) on connecting rod (24,25) major part, is located at both sides cylinder (11,11 ')
In bent axle (3) position accordingly to connecting rod (24,25) side offset.
The opposed internal combustion engine of two-stroke piston of employing rocker crank linkage the most according to claim 3,
It is characterized in that: when the power unit of one group of four cylinder is connected, can be positioned at being on bent axle (3)
Two adjacent axle journals (2) in centre position make maximum gauge, allow each journal diameter outside both sides successively
Trace reduces, and allows the inner side rolling bearing of corresponding size the most easily move past the axle journal of outside minor diameter.
6. according to the two-stroke of the employing rocker crank linkage described in claim 1,2,3,4 or 5
The opposed IC engine of piston, it is characterised in that: install downside rocking arm each collateral support seat (23) be in a left side,
On right separate integral structure component (40,41), two integral structure components are bolted integral, wherein
Side integral structure component (41) based on the base frame (42) of component and downside form one, bent axle
(3) based on being arranged on bearing cap on the integral structure component (41) of component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410773479.2A CN105888838A (en) | 2014-12-16 | 2014-12-16 | Two-stroke opposed-piston internal combustion engine adopting rocker arm crank connecting rod mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410773479.2A CN105888838A (en) | 2014-12-16 | 2014-12-16 | Two-stroke opposed-piston internal combustion engine adopting rocker arm crank connecting rod mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105888838A true CN105888838A (en) | 2016-08-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410773479.2A Pending CN105888838A (en) | 2014-12-16 | 2014-12-16 | Two-stroke opposed-piston internal combustion engine adopting rocker arm crank connecting rod mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105888838A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106382158A (en) * | 2016-12-06 | 2017-02-08 | 苗艇 | Single-air-cylinder multi-piston multi-crankshaft engine |
| CN107448282A (en) * | 2017-09-25 | 2017-12-08 | 苏州光耀智能发电机有限公司 | A kind of rotary dynamical system based on free-piston |
| CN110857660A (en) * | 2018-08-22 | 2020-03-03 | 丰田自动车株式会社 | Opposed piston engine |
-
2014
- 2014-12-16 CN CN201410773479.2A patent/CN105888838A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106382158A (en) * | 2016-12-06 | 2017-02-08 | 苗艇 | Single-air-cylinder multi-piston multi-crankshaft engine |
| CN107448282A (en) * | 2017-09-25 | 2017-12-08 | 苏州光耀智能发电机有限公司 | A kind of rotary dynamical system based on free-piston |
| CN107448282B (en) * | 2017-09-25 | 2023-09-08 | 苏州光耀智能发电机有限公司 | Rotary swing type power system based on free piston |
| CN110857660A (en) * | 2018-08-22 | 2020-03-03 | 丰田自动车株式会社 | Opposed piston engine |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160824 |