CN102797556A - Multi-cylinder engine - Google Patents
Multi-cylinder engine Download PDFInfo
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- CN102797556A CN102797556A CN2012103101293A CN201210310129A CN102797556A CN 102797556 A CN102797556 A CN 102797556A CN 2012103101293 A CN2012103101293 A CN 2012103101293A CN 201210310129 A CN201210310129 A CN 201210310129A CN 102797556 A CN102797556 A CN 102797556A
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Abstract
The invention discloses a multi-cylinder engine which comprises master cylinders, an auxiliary cylinder, a piston, a crank and a connecting rod, wherein each master cylinder comprises a cylinder cover, an inlet valve, an exhaust valve, a piston and a combustion mechanism, and the auxiliary cylinder comprises a cylinder cover, an exhaust valve and an air vent valve. A combustion chamber of each master cylinder is communicated with an acting cavity of the auxiliary cylinder through a gas channel and the air vent valve. Two master cylinders are arranged, the auxiliary cylinder is arranged between the two master cylinders, the inclined angles of the cranks of the two master cylinders are same (the pistons simultaneously arrive at an upper stopping point or a lower stopping point), and an inclined angle between the crank of the auxiliary cylinder and the crank of each master cylinder is 60 degrees. Because the acting process of the master cylinders is simultaneously completed in the master cylinders and the auxiliary cylinder, the expansion ratio of the engine is greater than the compression ratio thereof, thereby improving the fuel utilization of the engine and improving the thermal efficiency of the engine.
Description
Affiliated technical field
The present invention relates to a kind of multicylinder engine.
Background technique
The efficient that promotes motor is from from motor is born, and this problem is being carried out always.Want to promote power and efficient; Improving compression ratio is means; But the raising of compression ratio is very limited; So can only improve the efficient that expansion recently improves motor, 19 end of the centurys inventions the expansion ratio of Atkinson cycle engine and the miller cycle motor of eighties of last century forties greater than compression ratio.
Atkinson cycle engine is to utilize comparatively complicated connecting rod to make the stroke of piston in different strokes different, and the stroke of piston is less than the stroke in expansion stroke and the exhaust stroke in the suction stroke of motor and compression stroke.And the miller cycle motor is that intake valve still is held open state after the breathing process of motor finishes, and piston begins to discharge a part to the gas that sucks the firing chamber again to the motion of top dead center direction from lower dead center, begins compression then.Exhauxt valve opens during the piston arrives lower dead center in the motor expansion stroke, so the expansion ratio of miller cycle motor can utilize the unnecessary heat energy in the waste gas to continue acting greater than compression ratio.
Above-mentioned Sydney Atkinson motor and miller cycle motor all are the motors that this type of principle that improves expansion ratio is raised the efficiency.
Almost do not have Atkinson cycle engine at present on the market, Toyota once declared to have used Atkinson cycle engine, but was the miller cycle motor from practical structures.Suck behind the firing chamber again because of the structure of Atkinson cycle engine is too complicated with the miller cycle motor that the unnecessary stroke and the long stroke of piston of discharge cause its torsion little to gas, above-mentioned several kinds of factors cause these two types of motors to fail to be applied.
Summary of the invention
The purpose of this invention is to provide a kind of multicylinder engine, the expansion ratio of this motor is greater than compression ratio, and the pressure that can make full use of waste gas continues acting, thereby improves the efficient of motor.
The invention provides a kind of multicylinder engine; It comprises: master cylinders, auxiliary steam cylinder, piston, crank, connecting rod, master cylinders lid, auxiliary steam cylinder lid, intake valve mechanism, Exhaust valve mechanism, gas valve mechanism, the blast tube of sealing, combustion mechanism; The cylinder cap of master cylinders, cylinder block and piston closes become the firing chamber; The firing chamber is connected with combustion mechanism, and the firing chamber is through intake valve and exhaust valve and atmosphere, and piston, connecting rod, crank are power conversion mechanism; The cylinder block of auxiliary steam cylinder, cylinder head and piston closes become the acting cavity volume; This cavity volume is communicated with through blast tube and the gas valve that seals with the firing chamber of master cylinders; Through exhaust valve and atmosphere, the pto of the pto of master cylinders crank and auxiliary steam cylinder crank is on same axis.
Two sides have respectively arranged a master cylinders before and after the auxiliary steam cylinder; Before and after two sides the master cylinders crank pto and wherein between the pto of auxiliary steam cylinder crank of layout on same axis; Master cylinders lid is an integral body with the auxiliary steam cylinder lid, and the acting cavity volume that the sealing blast tube on the cylinder head makes auxiliary steam cylinder is communicated with the firing chamber of two sides' master cylinders respectively, is provided with gas valve from the do work blast tube of cavity volume firing chamber of two sides' master cylinders to front and back of auxiliary steam cylinder; The top of gas valve; Be the end that rocking arm is passed at position, valve stem top, lock is equipped with at the position, top that valve stem passes rocking arm one end, an end in contact of this lock and rocking arm; the other end of rocking arm directly or indirectly contacts with camshaft, and the other end of gas valve is the dish conical surface.
Described gas valve is by valve, platen, rocking arm, spring, valve guide bushing, valve base, base screw, valve sealing circle, cotter seat, following locker; On through hole through rocking arm one end of lock, valve top, position, the through hole upper-end surface valve stem lock being housed, is platen below rocking arm one end; It below the platen spring; Be cotter seat and following locker below the spring, successively through above-mentioned parts, the inner ring position of following locker is in the following rod slot of valve stem from top to bottom for valve stem; And the position, outer ring of locker is in contact with it below cotter seat down, and the dish conical surface of valve contacts with the dish conical surface of base.
The valve of said gas valve mainly reaches positions such as going up rod slot and following rod slot by dish cylindrical, the dish conical surface, neck, bar portion and forms; Air valve cervix is connected with the outer inner round side of dish; The dish cylindrical outside is connected with the dish conical surface, and the valve stem lower end is connected with neck, on the last rod slot lock is housed.
Described valve base is made up of cylindrical seat, two positions of base disk; The cylindrical seat low side is fixed on the base disk; There is the dish conical surface cylindrical seat upper end, and the inclined hole on the valve base is between the dish conical surface and the low end face of base disk, and cylindrical seat is embedded in the cylindrical hole on cylinder head and the low end face that the acting cavity volume contacts; Base disk be embedded in cylinder head with the low end face that contacts of acting cavity volume on, be screwed base disk.
Described lock is made up of last locker and chuck, locks to be installed on the valve stem between the rod slot and chuck.
The angle of the crank of two master cylinderses is identical, and the angle of the crank of auxiliary steam cylinder and master cylinders crank is 60 °, and when being postive direction with the crank sense of rotation, the angle of auxiliary steam cylinder crank is-60 ° when the residing angle of master cylinders crank is 0 °.
The technique effect that is produced by foregoing invention is tangible; Because the workmanship process of master cylinders is to accomplish simultaneously in master cylinders and the auxiliary steam cylinder; So the expansion ratio of motor is much larger than compression ratio, thereby improve the fuel utilization ratio of motor, improved the thermal efficiency of motor.
Description of drawings
Fig. 1 multicylinder engine structural representation;
Fig. 2 multicylinder engine plan view.
Embodiment
As shown in Figure 1; It comprises motor: auxiliary steam cylinder 20, two master cylinderses 3,35; Master cylinders comprises: piston 7 that pumps in the cylinder and the to-and-fro motion that makes piston convert the connecting rod 6 and crank 5 that rotatablely moves to, and master cylinders lid 2 is arranged in cylinder 3 tops, and piston head, three face closures of cylinder and cylinder cap become firing chamber 8; Arranged distribution device on the cylinder head, it comprises: intake valve 1, exhaust valve 9, camshaft 11, inlet valve rocker 12, exhaust valve rocker arm 10.As shown in Figure 2, the firing chamber of master cylinders 3 is connected with the acting cavity volume of auxiliary steam cylinder 20 through sealing blast tube on the cylinder cap 41 and gas valve 44.
The structure of master cylinders 35 is identical with the structure of above-mentioned master cylinders 3; Mainly form by piston 34, crank-connecting rod 33 and cylinder head; The cylinder head of above-mentioned master cylinders 3, master cylinders 35, auxiliary steam cylinder 20 is as a whole, has arranged intake valve 32, inlet valve rocker 38, exhaust valve 36, exhaust valve rocker arm 37 on the master cylinders 35 top cylinder heads.As shown in Figure 2, the firing chamber of master cylinders 34 is connected with the acting cavity volume of auxiliary steam cylinder 20 through sealing blast tube on the cylinder cap 46 and gas valve 31.
Exhaust valve 13, gas valve 31, gas valve rocking arm 30 have been arranged on the cylinder head of auxiliary steam cylinder top.
As shown in Figure 1, gas valve 31 is by valve, platen 27, spring 26, valve guide bushing 22, valve base 19, base screw 18, valve sealing circle 23, cotter seat 25, locker 24 down, chuck 29, goes up locker 28; On the through hole of valve top through rocking arm one end, position, the through hole upper-end surface valve stem chuck 29 is housed; Locker 28 is housed above the chuck, and the inner ring position of last locker 28 is on valve stem in the rod slot, and the position, outer ring of going up locker is in contact with it on chuck 29; be platen 27 below rocking arm one end; platen is fixed on the cylinder head with screw 47, is spring 26 below the platen, is cotter seat 25 and following locker 24 below the spring 26; valve stem passes through above-mentioned parts from top to bottom successively; the inner ring position of following locker 24 is in the following rod slot of valve stem, and the position, outer ring of time locker is in contact with it below chuck 25, and the dish conical surface of gas valve contacts with the conical surface of base 19;
The vent valve valve is mainly tied and is comprised dish cylindrical, the dish conical surface 58, neck 57, bar portion 55 and go up parts such as rod slot 54 and following rod slot 56.Air valve cervix is connected with the outer inner round side of dish, and the dish cylindrical outside is connected with the dish conical surface, and the valve stem lower end is connected with neck, on the last rod slot lock is housed.Lock is made up of last locker and chuck.
Valve base 19 is made up of cylindrical seat, two positions of base disk; The cylindrical seat low side is fixed on the base disk; There is the dish conical surface cylindrical seat upper end, and the inclined hole 21 on the valve base is between the dish conical surface and the low end face of base disk, and cylindrical seat is embedded in the cylindrical hole on cylinder head and the low end face that the acting cavity volume contacts; Base disk be embedded in cylinder head with the low end face that contacts of acting cavity volume on, with screw 18 fixed base dishes.
When an end of gas valve rocking arm moves up because of the change of camshaft lift; rocking arm one end withstands chuck and last locker forces valve to move up; cotter seat together moves up with following locker and valve; the dish conical surface of valve and the dish conical surface of base separate, thereby the gas valve unlatching is sleeved on valve stem and the supravasal valve spring of valve this moment and is compressed by platen and mobile cotter seat; After camshaft turns over several angle; The camshaft lift changes; Its protrusion position turns over the surface of contact with rocking arm; This moment, rocking arm disappeared to the pulling force of the upwards direction of gas valve, and valve moves down under the effect of spring, and the dish conical surface that moves to the dish conical surface and the base of valve contacts gas valve is closed.
As shown in Figure 1; With the crank sense of rotation is postive direction; Crank 5 residing angles are 0 ° or 360 ° when piston 7 is in top dead center 48, and this moment, piston 34 also was in top dead center, and crank 33 residing angles also are 0 °; And the crank of auxiliary steam cylinder is in-60 ° of (or 300 °) positions, and the angle of master cylinders crank 5,33 and auxiliary steam cylinder crank 15 is 60 °.
Crank 5 and 33 is from 180 °---and in 240 ° of corners: the piston 7 of master cylinders 3 is motion from lower dead center 49 toward the top dead center direction, makes the gas compression in the cylinder; The piston 34 of master cylinders 35 is same toward top dead center 52 motions, exhaust valve 36 unlatchings this moment; The piston 16 of auxiliary steam cylinder still toward lower dead center 51 motions, close in this corner by gas valve 31;
Crank 5 and 33 is from 240 °---and in 360 ° of corners: the piston 7 of master cylinders 3 arrives top dead center 48, and its compression stroke finishes; The piston 34 same top dead centers that arrive of master cylinders 35, its exhaust stroke finishes; The piston 16 of auxiliary steam cylinder is motion from lower dead center 51 toward top dead center 50 directions, and exhaust valve 13 is opened in this corner, and auxiliary steam cylinder is in exhaust stroke;
Crank 5 and 33 is from 420 °---and in 540 ° of corners: still be in the acting process in master cylinders 3 these corners, expansion stroke finishes when piston 7 arrives lower dead center 49; The intake valve 32 of master cylinders 35 is still opened, and intake valve 32 was closed when piston 34 moved to lower dead center 53, and the suction stroke of master cylinders 35 finishes; The crank 15 of auxiliary steam cylinder forwards 480 ° to from 360 ° in this corner, and gas valve 44 is opened, and the high-temperature combustion gas of master cylinders 3 gets in the auxiliary steam cylinders through blast tube 41 and gas valve 44, promote piston 16 from top dead center 50 beginnings toward the motion of lower dead center 51 directions;
Crank 5 and 33 is from 540 °---and in 600 ° of corners: the piston 7 of master cylinders 3 is toward top dead center 49 motions, and exhaust valve 9 is opened at this moment; The piston 34 of master cylinders 35 is motion from lower dead center 53 toward top dead center 52 directions, makes the gas compression in the cylinder; The piston 16 of auxiliary steam cylinder still toward lower dead center 51 motions, close in this corner by gas valve 44;
Crank 5 and 33 is from 600 °---and in 720 ° of corners: the piston 7 of master cylinders 3 arrives top dead center, and its exhaust stroke finishes; The piston 34 of master cylinders 35 arrives top dead center 52, and its compression stroke finishes; The piston 16 of auxiliary steam cylinder is motion from lower dead center 51 toward top dead center 50 directions, and exhaust valve 13 is opened in this corner, and auxiliary steam cylinder is in exhaust stroke.
Master cylinders 3 identically with general internal-combustion engine has four strokes with 35, promptly air-breathing, compression, acting, four strokes of exhaust, and auxiliary steam cylinder has only two strokes, i.e. acting and two strokes of exhaust.
Above-mentioned multicylinder engine is compared with the miller cycle motor and has been lacked in the firing chamber process of discharge section gas again that sucks behind the gas.
Claims (7)
1. multicylinder engine; It comprises: master cylinders, auxiliary steam cylinder, piston, crank, connecting rod, master cylinders lid, auxiliary steam cylinder lid, intake valve mechanism, Exhaust valve mechanism, gas valve mechanism, the blast tube of sealing, combustion mechanism; The cylinder cap of master cylinders, cylinder block and piston closes become the firing chamber; The firing chamber is connected with combustion mechanism, and the firing chamber is through intake valve and exhaust valve and atmosphere, and piston, connecting rod, crank are power conversion mechanism; The cylinder block of auxiliary steam cylinder, cylinder head and piston closes become the acting cavity volume; This cavity volume is communicated with through blast tube and the gas valve that seals with the firing chamber of master cylinders; Through exhaust valve and atmosphere, the pto of the pto of master cylinders crank and auxiliary steam cylinder crank is on same axis.
2. multicylinder engine as claimed in claim 1 is characterized in that, two sides have respectively arranged a master cylinders before and after the auxiliary steam cylinder; Before and after two sides the master cylinders crank pto and wherein between the pto of auxiliary steam cylinder crank of layout on same axis; Master cylinders lid is an integral body with the auxiliary steam cylinder lid, and the acting cavity volume that the sealing blast tube on the cylinder head makes auxiliary steam cylinder is communicated with the firing chamber of two sides' master cylinders respectively, is provided with gas valve from the do work blast tube of cavity volume firing chamber of two sides' master cylinders to front and back of auxiliary steam cylinder; The top of gas valve; Be the end that rocking arm is passed at position, valve stem top, lock is equipped with at the position, top that valve stem passes rocking arm one end, an end in contact of this lock and rocking arm; the other end of rocking arm directly or indirectly contacts with camshaft, and the other end of gas valve is the dish conical surface.
3. multicylinder engine as claimed in claim 1; It is characterized in that described gas valve is by valve, platen, rocking arm, spring, valve guide bushing, valve base, base screw, valve sealing circle, cotter seat, following locker, lock; On the through hole of valve top through rocking arm one end, position, the through hole upper-end surface valve stem lock being housed; below rocking arm one end is platen, is spring below the platen, is cotter seat and following locker below the spring; valve stem is from top to bottom successively through above-mentioned parts; the inner ring position of following locker is in the following rod slot of valve stem, and the position, outer ring of time locker is in contact with it below cotter seat, and the dish conical surface of valve contacts with the dish conical surface of base.
4. like claim 1 and 3 described multicylinder engines; It is characterized in that; Mainly by coiling cylindrical, the dish conical surface, neck, bar portion and going up positions such as rod slot and following rod slot and forms, air valve cervix is connected with the outer inner round side of dish the valve of said gas valve, coils the cylindrical outside and is connected with the dish conical surface; The valve stem lower end is connected with neck, on the last rod slot lock is housed.
5. like claim 1 and 3 described multicylinder engines, it is characterized in that described valve base is made up of cylindrical seat, two positions of base disk; The cylindrical seat low side is fixed on the base disk; There is the dish conical surface cylindrical seat upper end, and the inclined hole on the valve base is between the dish conical surface and the low end face of base disk, and cylindrical seat is embedded in the cylindrical hole on cylinder head and the low end face that the acting cavity volume contacts; Base disk be embedded in cylinder head with the low end face that contacts of acting cavity volume on, be screwed base disk.
6. like claim 1 and 2 described multicylinder engines, it is characterized in that described lock is made up of last locker and chuck, locking is installed on the valve stem between the rod slot and chuck.
7. like claim 1 and 2 described multicylinder engines; It is characterized in that; The angle of the crank of two master cylinderses is identical; The angle of the crank of auxiliary steam cylinder and master cylinders crank is 60 °, and when being postive direction with the crank sense of rotation, the angle of auxiliary steam cylinder crank is-60 ° when the residing angle of master cylinders crank is 0 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103101293A CN102797556A (en) | 2012-08-20 | 2012-08-20 | Multi-cylinder engine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103101293A CN102797556A (en) | 2012-08-20 | 2012-08-20 | Multi-cylinder engine |
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| Publication Number | Publication Date |
|---|---|
| CN102797556A true CN102797556A (en) | 2012-11-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012103101293A Pending CN102797556A (en) | 2012-08-20 | 2012-08-20 | Multi-cylinder engine |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1312778A1 (en) * | 2001-11-15 | 2003-05-21 | Chang Sun Kim | Internal combustion engines |
| RU2299999C2 (en) * | 2005-06-22 | 2007-05-27 | Камиль Нажипович Динов | Internal combustion engine with auxiliary cylinder (versions) |
| US20100269806A1 (en) * | 2007-12-21 | 2010-10-28 | Meta Motoren- Und Energie-Technik Gmbh | Method for Operating an Internal Combustion Engine and an Internal Combustion Engine |
| CN101963090A (en) * | 2009-07-23 | 2011-02-02 | Lgd技术有限责任公司 | Across valve system |
-
2012
- 2012-08-20 CN CN2012103101293A patent/CN102797556A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1312778A1 (en) * | 2001-11-15 | 2003-05-21 | Chang Sun Kim | Internal combustion engines |
| RU2299999C2 (en) * | 2005-06-22 | 2007-05-27 | Камиль Нажипович Динов | Internal combustion engine with auxiliary cylinder (versions) |
| US20100269806A1 (en) * | 2007-12-21 | 2010-10-28 | Meta Motoren- Und Energie-Technik Gmbh | Method for Operating an Internal Combustion Engine and an Internal Combustion Engine |
| CN101963090A (en) * | 2009-07-23 | 2011-02-02 | Lgd技术有限责任公司 | Across valve system |
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Application publication date: 20121128 |