CN102562294B - Eight-stroke engine - Google Patents

Eight-stroke engine Download PDF

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Publication number
CN102562294B
CN102562294B CN201210016667.1A CN201210016667A CN102562294B CN 102562294 B CN102562294 B CN 102562294B CN 201210016667 A CN201210016667 A CN 201210016667A CN 102562294 B CN102562294 B CN 102562294B
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China
Prior art keywords
valve
unicom
countercylinder
master cylinder
breathing
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CN201210016667.1A
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CN102562294A (en
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马可超
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Individual
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Priority to CN201210016667.1A priority Critical patent/CN102562294B/en
Publication of CN102562294A publication Critical patent/CN102562294A/en
Priority to PCT/CN2012/087350 priority patent/WO2013107249A1/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B41/00Engines characterised by special means for improving conversion of heat or pressure energy into mechanical power
    • F02B41/02Engines with prolonged expansion
    • F02B41/06Engines with prolonged expansion in compound cylinders
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B33/00Engines characterised by provision of pumps for charging or scavenging
    • F02B33/02Engines with reciprocating-piston pumps; Engines with crankcase pumps
    • F02B33/06Engines with reciprocating-piston pumps; Engines with crankcase pumps with reciprocating-piston pumps other than simple crankcase pumps
    • F02B33/22Engines with reciprocating-piston pumps; Engines with crankcase pumps with reciprocating-piston pumps other than simple crankcase pumps with pumping cylinder situated at side of working cylinder, e.g. the cylinders being parallel
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00Other engines
    • F02B75/02Engines characterised by their cycles, e.g. six-stroke
    • F02B75/021Engines characterised by their cycles, e.g. six-stroke having six or more strokes per cycle

Abstract

The invention relates to an eight-stroke engine which consists of a primary air cylinder four-stroke system and a secondary air cylinder four-stroke system. The eight-stroke engine comprises primary and secondary crank shafts (1 and 2), connecting rods (3 and 4), pistons (7 and 8), an assembly of primary and secondary air cylinders (11 and 12), an air suction door (21), air exhaust doors (22 and 26), an assembly of a communication air door (24) and an air breathing door (25), a cooling system and a lubrication system, wherein only the primary air cylinders (11) are provided with ignition and fuel supply assemblies, each primary air cylinder (11) and a corresponding secondary air cylinder (12) are connected and communicated with each other through a communication air passage (23) and form a group, the communication air passage (23) is opened/closed by the communication air door (24) and an electric valve (27) according to set working procedures, and the primary air cylinders (11) and the pistons (7 and 8) in corresponding secondary air cylinders (12) are respectively connected with the primary crank shaft (1) and the secondary crank shaft (2) through the connecting rods (3 and 4). According to the eight-stroke engine, the power and the efficiency of the engine are maximized.

Description

Eight-stroke engine
Technical field
The present invention relates to the method and apparatus of removable power and generation driving force, especially the method for work of internal-combustion engine and equipment.
Background technique
The motor of the Carnot's cycle history of existing 100 years, its working principle: air-breathing, compression, blast, exhaust.Along with the performance of scientific and technological development motor also constantly improves, as increased the technology such as valve, turbosupercharging, EFI, in-cylinder direct injection, but fail to make the thermal efficiency of motor to exceed 30%.Under the background of Global Oil, environmental crisis, the thermal efficiency and the environment protection emission that improve motor have important and profound significance to social development.
CN200810007618 has proposed a kind of eight-stroke engine, and this motor has the working cylinder by work by combustion, is called combustion cylinders; With the working cylinder doing work by water vapor expansion, be called steam cylinder; Combustion cylinders is connected by air flue with steam cylinder, on steam cylinder, has water jetting apparatus; In combustion cylinders, after air experience " acting-exhaust of air inlet-compression-burning expansion " four strokes, the high-temperature fuel gas producing enters in steam cylinder by air flue, then experiences " entering High Temperature Gas-compression water spray-steam expansion acting-exhaust " four strokes, altogether eight strokes.Described air flue is pressure stabilizing cavity structure.Above-mentioned eight-stroke engine utilizes exhaust heat-energy to be converted into steam, then conversion process in fact efficiency is very limited, gained may not be also work as, above scheme has no and enters practicality.
In general, why the thermal efficiency of existing piston four stroke engine is no more than 30%, is because its explosion energy is not fully utilized, and also cannot make full use of caused, and also falls far short apart from theoretical efficiency.This index of the compression ratio of motor has determined that the unnecessary energy of blast working stroke must enter next working procedure exhaust, also has most useful power not to be utilized, with regard to having drained in vain.
Summary of the invention
The object of the invention is: the explosive motor that proposes a kind of two (one or three) bent axles of eight strokes two (one or three) row cylinder that makes full use of heat energy, the setting method that the present invention proposes and device will make full use of most useful poweies exactly, make the power of motor, efficiency realize maximization and energy-conserving and environment-protective.
Technological scheme of the present invention is, the setting method of eight-stroke engine, every cylinder to four stroke engine is all set up the countercylinder of answering in contrast, master cylinder is laterally parallel with countercylinder, corresponding master cylinder 11 and countercylinder 12 form to interconnect by UNICOM's air flue 23 and are referred to as one group, master cylinder 11 is in the time of blast acting, open the high temperature that UNICOM's valve 24 burns master cylinder 11, high pressure, expanding gas, by UNICOM's air flue 23 moments importing countercylinder 12, the exhaust valve 26 of countercylinder 12 and breathing valve 25 are closed, at two cylinders 11 of a group, 12 interior abundant burnings, two cylinders 11 of expansion driven major-minor, piston 7 in 12, 8 motion actings.
The improvement of eight-stroke engine setting method is, every cylinder of four stroke engine is all set up to countercylinder and the whole system device of answering in contrast, master cylinder (forming a line) is horizontal parallel position with countercylinder (forming a line), the piston 8 of countercylinder is by connecting rod 4, secondary crankshaft 2 and synchronizer 28 pass to main crankshaft 1, make main crankshaft 1 obtain the power-assisted of secondary crankshaft 2, two bent axles 1, 2 rotate simultaneously and form with joint efforts, exported by main crankshaft 1, that is to say the air-breathing and oil inlet quantity of using once, the secondary cylinder system of setting up by the present invention is equivalent to extend this link of blast working stroke of motor.Two cylinders 11,12 of adding one group of cylinder carry out exhaust simultaneously, the negative work phenomenon of exhaust is effectively improved, therefore most useful poweies have obtained sufficient utilization, make power, the efficiency of motor realize maximization, the discharge amount of tail gas reduces to some extent, and discharge quality increases.
Eight-stroke engine, four-stroke system by the four-stroke system of master cylinder and corresponding countercylinder forms, comprise bent axle 1,2, connecting rod 3,4, piston 7,8 and cylinder 11,12 assemblies, air-breathing door 21, exhaust valve 22,26, UNICOM's valve 24 and breathing valve 25 assemblies and cooling system and lubricating system etc. are combined into a set of complete eight-stroke engine machine system.Only have master cylinder 11 to be provided with igniting and supply fuel assembly, each master cylinder 11 forms to interconnect by UNICOM's air flue 23 with corresponding countercylinder 12 and is referred to as one group, and UNICOM's air flue 23 is provided with UNICOM's valve 24 and mortor operated valve 27 opens and closes by the working procedure of setting.Master cylinder 11 is connected with secondary crankshaft 2 with main crankshaft 1 respectively by connecting rod 3,4 with the piston 7,8 in corresponding countercylinder 12, between two bent axle 1,2 one or both ends, be provided with synchronizer 28, make 1,2 whiles of two bent axles, synchronized, rotating Vortex by the engagement of synchronizer 28, two pistons 7,8 in the time of blast acting in one group of cylinder, by connecting rod 3,4, two bent axles 1,2 being produced simultaneously rotates and forms with joint efforts, carrying out power output by bent axle 1.Master cylinder system is with air-breathing, compression, blast, exhaust stroke work; Countercylinder system is pressed: air-breathing, exhaust, blast, exhaust stroke work.
Master cylinder 11 is in air-breathing, when compression, and UNICOM's valve 24 is closed, and the breathing valve 25 of countercylinder 12 is opened, and countercylinder 12 does self-suction discharge, no load movement.
Master cylinder 11 is in the time of blast acting, UNICOM's valve 24 is opened, high temperature, high pressure, the expanding gas of master cylinder 11 interior formation, by UNICOM's air flue 23 moments importing countercylinder 12, countercylinder 12 exhaust valves 26 and breathing valve 25 are closed, and the piston 7,8 that enables to have measured sufficient release and promoted in two cylinders 11,12 simultaneously moves downward.
Master cylinder 11 is in the time of exhaust, and UNICOM's valve 24 is closed, and the breathing valve 25 of countercylinder 12 is closed, and the exhaust valve 26 of countercylinder 12 is opened.Owing to being that two cylinders 11,12 of a group carry out exhaust simultaneously, greatly reduce the merit because of exhaust loss.
UNICOM's valve 24 can be opened in the time of blast acting in timing, and the 1-5ms that more can lag behind opens.Main crankshaft 1 and secondary crankshaft 2 can turn round with angle simultaneously, also can form 0-an angle of 90 degrees and rotate simultaneously.Between the angle of swing of the opening time of UNICOM's valve 24 and secondary crankshaft 2, there is a best match time.
Working state and the function of each valve in air-breathing, compression, blast, exhaust process:
Breathing process: when two pistons are moved to lower dead center by top dead center simultaneously, air-breathing door 21 is opened and carried out air-breathing and oil-feed, exhaust valve 22,26, UNICOM's valve 24 are closed, and breathe valve 25 and open.
Compression process: when two pistons are moved to top dead center by lower dead center simultaneously, air-breathing door 21, exhaust valve 22,26, UNICOM's valve 24 are closed, and breathe valve 25 and open.
Igniting blast process: when two pistons are moved to lower dead center by top dead center simultaneously, UNICOM's valve 24 is opened, air-breathing door 21, exhaust valve 22,26, breathe valve 25 and close.
Exhaust process: when two pistons are moved to top dead center by lower dead center simultaneously, exhaust valve 22,26 is opened, air-breathing door 21, UNICOM's valve 24, breathe valve 25 and close.
UNICOM's valve: UNICOM's valve 24 is located on UNICOM's air flue 23, in the time of blast acting, open, high temperature in master cylinder 11, high pressure, expanding gas are passed through to UNICOM's air flue 23, the interior abundant burning of two cylinders 11,12, the expansion of one group, and fully discharge and make two pistons 7,8 in cylinder produce motion simultaneously.Master cylinder at air-breathing, compression, these three process UNICOM valves 24 of exhaust in closed condition.UNICOM's valve 24 opens and closes and can adopt machinery type (camshaft) or mortor operated valve to control.
Breathe valve: master cylinder 11 is in air-breathing, compression process, and the breathing valve 25 of countercylinder 12 is opened, and object is that the piston 8 in order to make countercylinder 12 does upper and lower self-suction discharge no load movement in this process, does not increase load, not the power of consumption of engine.Master cylinder 11 is in blast, exhaust process, and the breathing valve 25 of countercylinder 12 is in closed condition.Breathing the required air of valve 25 self-suction discharges is to have independently air filtration system to filter.
Mortor operated valve: mortor operated valve 27 is located on UNICOM's air flue 23, determine by the switching of mortor operated valve 27 whether countercylinder 12 participates in the acting of master cylinder 11, general motor in the time starting mortor operated valve 27 in closed condition, after master cylinder 11 normal operations in motor, open mortor operated valve 27, countercylinder 12 participates in acting.The opening/closing time of mortor operated valve is to carry out intelligent control by sensor or time delay device.
Synchronizer: synchronizer 28 is gear structure, is located between the one or both ends of major and minor bent axle 1,2, makes 1,2 whiles of two bent axles, synchronized, rotating Vortex by the engagement of synchronizer 28 gears.
Eight-stroke engine is owing to adopting the double cylinder system of double-crankshaft, two pistons 7,8 do work simultaneously, two bent axles 1,2 rotate simultaneously, and secondary crankshaft 2 is ceaselessly made a concerted effort to main crankshaft 1 power-assisted formation, make motor move the power output of more coherent, steady, smooth and easy and acquisition low rotation speed large torque.
The working forms of eight-stroke engine be Spark ignition type or compression-ignited be petrol engine or diesel engine; Eight-stroke engine is made up of the four-stroke system of the four-stroke system of master cylinder and corresponding countercylinder, also comprises following two kinds of structures:
(1) bent axle, single cylinder or double cylinder: master cylinder system and countercylinder system are all located at a bent axle, the piston of each master cylinder and countercylinder is connected with corresponding crank throw by connecting rod.Between each master cylinder and countercylinder, be equipped with UNICOM's air flue assembly, the mode that master cylinder and countercylinder are arranged has: I type or V-type;
(2) three bent axles, three row's cylinders: wherein main crankshaft is placed in the middle, and two secondary crankshafts are located at respectively the both sides of main crankshaft, becomes parallel position, is equipped with synchronizer between main crankshaft and secondary crankshaft one or both ends, is exported by main crankshaft power; One row master cylinder with piston in two row countercylinders by connecting rod and the major-minor bent axle of arranging separately corresponding connection mutually; Between each master cylinder and countercylinder, be equipped with UNICOM's air flue assembly, the mode that master cylinder and countercylinder are arranged has: III type or W type.
In sum, the secondary cylinder system that eight-stroke engine is set up only plays a role in master cylinder blast acting process, be equivalent to extend this link of engine explosions working stroke, the state in no load movement completely in other three processes (air-breathing, compression, exhaust).As can be seen here, countercylinder systemic-function has played and has only increased engine power in eight-stroke engine machine system, and self effect of consumed power hardly, maximizes thereby the power of motor is realized.
Beneficial effect of the present invention: eight-stroke engine performs to ultimate attainment and realized sufficient utilization by energy, not only play the effect that increases power, efficiency and energy-conserving and environment-protective discharge, and make engine running more steady, and noise is lower, longer service life, and travelling comfort is better.
Brief description of the drawings
Fig. 1: bent axle of the present invention is arranged schematic diagram.
Fig. 2: inblock cylinder of the present invention lists intention.
Fig. 3: eight-stroke engine sectional drawing.
Fig. 4: UNICOM's air flue assembly sectional drawing.
Fig. 5: the phase diagram of each valve of motor breathing process.
Fig. 6: the phase diagram of each valve of engine compresses process.
Fig. 7: the phase diagram of each valve of engine explosions acting process.
Fig. 8: the phase diagram of each valve of engine exhaust process.
Fig. 9: synchronizer schematic diagram.
Figure 10: breathe valve cam schematic diagram.
Embodiment
As shown in the figure, the device of eight-stroke engine: by main crankshaft 1, secondary crankshaft 2, connecting rod 3,4, wrist pin 5,6, piston 7,8, piston ring 9,10, master cylinder 11,13,15,17, countercylinder 12,14,16,18, oil nozzle 19, spark plug 20, air-breathing door 21, exhaust valve 22,26, UNICOM's air flue 23, UNICOM's valve 24, breathes valve 25, mortor operated valve (solenoid valve) 27, synchronizer 28, breathes valve camshaft 29, valve bridge 30.
In crankcase, be provided with two duplicate bent axle 1,2 parallel placements, bent axle 1 is for main crankshaft and be provided with output terminal, and bent axle 2 is secondary crankshaft, makes two bent axles whiles, synchronized, rotating Vortex by synchronizer 28.
Master cylinder one row 11,13,15,17 countercylinder one row 12,14,16,18 successively by sequence number linearly, be laterally and be arranged in parallel.Piston 7,8 is by connecting rod 3,4 and the mutual corresponding connection of two bent axles 1,2, and master cylinder 11 forms to interconnect by UNICOM's air flue 23 with corresponding countercylinder 12 and is referred to as one group, and other cylinder block by that analogy.The spread pattern of master cylinder and countercylinder is: II type or V-type.
Cylinder head is provided with air-breathing door 21, exhaust valve 22,26, UNICOM's air flue 23, UNICOM's valve 24, breathes valve 25, spark plug 20, oil nozzle 19 and the overhead camshaft corresponding with each valve or tappet/rocking arm, lubrication system and intake duct, air outlet flue, back oil road etc.
There is electromagnetism UNICOM air flue 23 to be located at any one position (cylinder head) in each master cylinder and the above space of countercylinder piston top dead center, major and minor cylinder is formed and interconnected.
UNICOM's air flue 23 is provided with UNICOM's valve 24 and mortor operated valve 27 forms UNICOM's air flue assembly, and UNICOM's valve 24 and mortor operated valve 27 open and close by the working procedure of setting separately.
The cylinder head of every group of cylinder is equipped with five valves and five overhead camshafts or tappet/rocking arm, and each valve group opens and closes according to the working procedure of eight-stroke engine.
Synchronizer 28 is gear structure, is located between the one or both ends of major and minor bent axle 1,2, makes two bent axles whiles, synchronized, rotating Vortex by the engagement of synchronizer 28 gears.
The time that UNICOM's valve 24 is opened synchronizes or hysteresis 1-5ms with master cylinder burst period, and the shut-in time of UNICOM's valve 24 synchronizes with period of exhaust.The switching of UNICOM's valve 24 is controlled by UNICOM's valve camshaft.
Main crankshaft 1 and secondary crankshaft 2 can turn round with angle simultaneously, and main crankshaft 1 and secondary crankshaft 2 also can form 0-an angle of 90 degrees and rotate simultaneously.Between the angle of swing of the opening time of UNICOM's valve 24 and secondary crankshaft 2, there is a best match time.
Breathe valve 25: master cylinder 11 is in air-breathing, compression process, and the breathing valve 25 of countercylinder 12 is open modes; Master cylinder 11 is in blast, exhaust process, and the breathing valve 25 of countercylinder 12 is closed conditions, according to the movement locus of breathing valve 25, it is characterized in that the fan-shaped camshaft shape of 180 ± 20 degree, breathes the switching of valve 25 and is controlled by camshaft 29.
Involved in the present invention to the volume of secondary cylinder be master cylinder 10-200%.
Accompanying drawing describe be working principle and embodiment's schematic diagram of eight-stroke engine, in the middle of practice according to the present invention the method for eight-stroke engine, with any form layout, do not exceed category of the present invention.

Claims (10)

1. eight-stroke engine, is characterized in that being made up of the four-stroke system of the four-stroke system of master cylinder and corresponding countercylinder; Comprise major-minor bent axle (1,2), connecting rod (3,4), piston (7,8) and major-minor cylinder (11,12) assembly, air-breathing door (21), exhaust valve (22,26), UNICOM's valve (24) and breathing valve (25) assembly and cooling system and lubricating system; Only have master cylinder (11) to be provided with igniting and supply fuel assembly, each master cylinder (11) forms to interconnect by UNICOM's air flue (23) with corresponding countercylinder (12) and is referred to as one group, and UNICOM's air flue (23) is upper to be opened and closed by the working procedure of setting by UNICOM's valve (24) and mortor operated valve (27); Master cylinder (11) piston (7,8) interior with corresponding countercylinder (12) is connected with secondary crankshaft (2) with main crankshaft (1) respectively by connecting rod (3,4), between two bent axles (1,2), be provided with synchronizer (28), by the engagement of synchronizer (28) make two bent axles (1,2) simultaneously, synchronized, rotating Vortex, two pistons (7,8) in the time of blast acting in one group of cylinder, by connecting rod (3,4), two bent axles (1,2) being produced simultaneously rotates and forms with joint efforts, carrying out power output by main crankshaft (1); Master cylinder system is with air-breathing, compression, blast, exhaust stroke work; Countercylinder system is pressed: air-breathing, exhaust, blast, exhaust stroke work;
Master cylinder (11) is in air-breathing, when compression, and UNICOM's valve (24) is closed, and the breathing valve (25) of countercylinder (12) is opened, and countercylinder (12) does self-suction discharge, no load movement; Master cylinder (11) is in the time of blast acting, UNICOM's valve (24) is opened, the high temperature, high pressure, the expanding gas that in master cylinder (11), form, by UNICOM's air flue (23) moment importing countercylinder (12), the exhaust valve (26) of countercylinder (12) and breathing valve (25) are closed; Master cylinder (11) is in the time of exhaust, and UNICOM's valve (24) is closed, the breathing valve-closing of countercylinder, and the exhaust valve (26) of countercylinder (12) is opened;
Specific works process:
Breathing process: when two pistons are moved to lower dead center by top dead center simultaneously, air-breathing door (21) is opened and carried out air-breathing and oil-feed, and exhaust valve (22,26), UNICOM's valve (24) are closed, breathes valve (25) and opens;
Compression process: when two pistons are moved to top dead center by lower dead center simultaneously, air-breathing door (21), exhaust valve (22,26), UNICOM's valve (24) are closed, breathes valve (25) and opens;
Igniting blast process: when two pistons are moved to lower dead center by top dead center simultaneously, UNICOM's valve (24) is opened, air-breathing door (21), exhaust valve (22,26), breathing valve (25) are closed;
Exhaust process: when two pistons are moved to top dead center by lower dead center simultaneously, exhaust valve (22,26) is opened, air-breathing door (21), UNICOM's valve (24), breathing valve (25) are closed.
2. eight-stroke engine, is characterized in that the working forms of eight-stroke engine is: Spark ignition type or compression-ignited be petrol engine or diesel engine; Eight-stroke engine is made up of the four-stroke system of the four-stroke system of master cylinder and corresponding countercylinder, comprises following two kinds of structures:
(1) comprise a bent axle, single cylinder or double cylinder, connecting rod, piston and master cylinder, second mate's cylinder assembly, air-breathing door (21), exhaust valve (22,26), UNICOM's valve (24) and breathing valve (25) assembly and cooling system and lubricating system; Only have master cylinder (11) to be provided with igniting and supply fuel assembly, each master cylinder (11) forms to interconnect by UNICOM's air flue (23) with corresponding countercylinder (12) and is referred to as one group, and UNICOM's air flue (23) is upper to be opened and closed by the working procedure of setting by UNICOM's valve (24) and mortor operated valve (27); Single cylinder or double cylinder structure are: master cylinder system and countercylinder system are all located at a bent axle, and the piston of each master cylinder and countercylinder is connected with corresponding crank throw by connecting rod; Between each master cylinder and countercylinder, be equipped with UNICOM's air flue assembly, the mode that master cylinder and countercylinder are arranged has: I type or V-type;
(2) comprise three bent axles, three row's cylinders, connecting rod, piston and master cylinder, second mate's cylinder assembly, air-breathing door (21), exhaust valve (22,26), UNICOM's valve (24) and breathing valve (25) assembly and cooling system and lubricating system; Only have master cylinder (11) to be provided with igniting and supply fuel assembly, each master cylinder (11) forms to interconnect by UNICOM's air flue (23) with corresponding countercylinder (12) and is referred to as one group, and UNICOM's air flue (23) is upper to be opened and closed by the working procedure of setting by UNICOM's valve (24) and mortor operated valve (27); Wherein main crankshaft is placed in the middle, and two secondary crankshafts are located at respectively the both sides of main crankshaft, becomes parallel position, between main crankshaft and secondary crankshaft one or both ends, is equipped with synchronizer, is exported by main crankshaft power; One row master cylinder with piston in two row countercylinders by connecting rod and the major-minor bent axle of arranging separately corresponding connection mutually; Between each master cylinder and countercylinder, be equipped with UNICOM's air flue assembly, the mode that master cylinder and countercylinder are arranged has: III type or W type;
Master cylinder (11) is in air-breathing, when compression, and UNICOM's valve (24) is closed, and the breathing valve (25) of countercylinder (12) is opened, and countercylinder (12) does self-suction discharge, no load movement; Master cylinder (11) is in the time of blast acting, UNICOM's valve (24) is opened, the high temperature, high pressure, the expanding gas that in master cylinder (11), form, by UNICOM's air flue (23) moment importing countercylinder (12), the exhaust valve (26) of countercylinder (12) and breathing valve (25) are closed; Master cylinder (11) is in the time of exhaust, and UNICOM's valve (24) is closed, the breathing valve-closing of countercylinder, and the exhaust valve (26) of countercylinder (12) is opened;
Specific works process:
Breathing process: when two pistons are moved to lower dead center by top dead center simultaneously, air-breathing door (21) is opened and carried out air-breathing and oil-feed, and exhaust valve (22,26), UNICOM's valve (24) are closed, breathes valve (25) and opens;
Compression process: when two pistons are moved to top dead center by lower dead center simultaneously, air-breathing door (21), exhaust valve (22,26), UNICOM's valve (24) are closed, breathes valve (25) and opens;
Igniting blast process: when two pistons are moved to lower dead center by top dead center simultaneously, UNICOM's valve (24) is opened, air-breathing door (21), exhaust valve (22,26), breathing valve (25) are closed;
Exhaust process: when two pistons are moved to top dead center by lower dead center simultaneously, exhaust valve (22,26) is opened, air-breathing door (21), UNICOM's valve (24), breathing valve (25) are closed.
3. eight-stroke engine according to claim 1, it is characterized in that synchronizer (28) is gear structure, be located between the one or both ends of major-minor bent axle (1,2), the engagement of the gear by synchronizer (28) make two bent axles (1,2) simultaneously, synchronized, rotating Vortex.
4. eight-stroke engine according to claim 1, is characterized in that UNICOM's air flue (23) is located at any one position in each master cylinder and the above space of countercylinder piston top dead center, and major and minor cylinder is formed and interconnected; UNICOM's air flue (23) is provided with mortor operated valve (27) and UNICOM's valve (24) forms UNICOM's air flue assembly.
5. eight-stroke engine according to claim 1 and 2, it is characterized in that the time that UNICOM's valve (24) is opened synchronizes or hysteresis 1-5ms with the burst period of master cylinder (11), UNICOM's valve (24) shut-in time synchronizes with the period of exhaust of master cylinder (11).
6. eight-stroke engine according to claim 1 and 2, is characterized in that main crankshaft and secondary crankshaft turn round with angle simultaneously, and main crankshaft and secondary crankshaft or formation 0-an angle of 90 degrees rotate simultaneously.
7. eight-stroke engine according to claim 1 and 2, the cam (29) that it is characterized in that controlling the camshaft of breathing valve switching is shaped as the fan-shaped of 180 ± 20 degree; Breathe the opening/closing time of valve (25): master cylinder (11) is opened at the breathing valve (25) of air-breathing, when compression countercylinder, and the breathing valve (25) of master cylinder (11) countercylinder in the time of blast, exhaust is closed.
8. eight-stroke engine according to claim 1 and 2, is characterized in that countercylinder volume is 10-200% of master cylinder volume.
9. eight-stroke engine according to claim 1, it is characterized in that the multi-cylinder unit of the double cylinder of double-crankshaft, master cylinder one row are horizontal parallel position with countercylinder one row, between each master cylinder (11) and countercylinder (12), be equipped with UNICOM's air flue (23), the one or both ends of main crankshaft (1) and secondary crankshaft (2) are equipped with synchronizer (28), and the arrangement mode of master cylinder and countercylinder has: II type or V-type.
10. one kind arranges the method for eight-stroke engine as claimed in claim 1 or 2, it is characterized in that every cylinder of four stroke engine all to set up the countercylinder of answering in contrast, master cylinder is laterally parallel with countercylinder, corresponding master cylinder (11) and countercylinder (12) form to interconnect by UNICOM's air flue (23) and are referred to as one group, master cylinder (11) is in the time of blast acting, open the high temperature that UNICOM's valve (24) makes master cylinder (11) burning, high pressure, expanding gas imports countercylinder (12) by UNICOM's air flue (23) moment, the exhaust valve (26) of countercylinder (12) and breathing valve (25) are closed, at one group of secondary two cylinder (11 of advocating peace, 12) fully burning in, expand and fully discharge and make two cylinders (11 of major-minor, 12) piston (7 in, 8) motion acting.
CN201210016667.1A 2012-01-19 2012-01-19 Eight-stroke engine Expired - Fee Related CN102562294B (en)

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CN102562294B (en) * 2012-01-19 2014-06-11 马可超 Eight-stroke engine
CN104405498B (en) * 2014-10-24 2017-01-25 廖玮 Variable compression ratio capacity-increasing cycle piston type internal combustion engine
CN107035517A (en) * 2016-02-03 2017-08-11 古长澍 A kind of new work engine

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