CN102352794A - Internal combustion engine - Google Patents

Internal combustion engine Download PDF

Info

Publication number
CN102352794A
CN102352794A CN2011102851103A CN201110285110A CN102352794A CN 102352794 A CN102352794 A CN 102352794A CN 2011102851103 A CN2011102851103 A CN 2011102851103A CN 201110285110 A CN201110285110 A CN 201110285110A CN 102352794 A CN102352794 A CN 102352794A
Authority
CN
China
Prior art keywords
piston
crank
cylinder
opposed
crank web
Prior art date
Application number
CN2011102851103A
Other languages
Chinese (zh)
Inventor
陈新
左朝凤
陈立新
李传友
夏迎松
Original Assignee
优华劳斯汽车系统(上海)有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 优华劳斯汽车系统(上海)有限公司 filed Critical 优华劳斯汽车系统(上海)有限公司
Priority to CN2011102851103A priority Critical patent/CN102352794A/en
Publication of CN102352794A publication Critical patent/CN102352794A/en

Links

Abstract

The invention discloses an internal combustion engine which comprises at least one pair of opposed air cylinders; each air cylinder is internally provided with a pair of an inner piston and an outer piston, a crank and a plurality of piston rods; and two ends of each piston rod are respectively connected with a piston and an asymmetrical crank web on the crank. The internal combustion engine is characterized in that the opposed pistons in the air cylinder move in each air cylinder along a long shaft when an engine operates through the oppositely arranged air cylinders; each connection piston and each piston rod of the crank web have certain central lines which extend to each pair of pistons and the crank web; the crank and the asymmetrical crank web are placed between the opposed air cylinders, thus the pistons are parallel at the long shaft direction after the central lines which are connected with the inner piston and the piston rods of the crank web corresponding to the inner piston and the inner piston in the cycle of the engine reach the top dead center when the combustion power reaches the peak value.

Description

Explosive motor

Technical field

The present invention relates to technical field of internal combustion engines, relate in particular to a kind of horizontal biconjugate that disposes single crank and put motor.

Background technique

Internal-combustion engine is with after liquid or gaseous fuel and the air mixing, and the high compression combustion chamber burning outburst of directly importing cylinder internal produces power.This also is a kind of hot machine that heat energy is converted into mechanical energy.Usually internal-combustion engine refers to internal-combustion piston engine, and internal-combustion piston engine is the most general with reciprocating piston type.Internal-combustion piston engine burns fuel and air mixing in its cylinder combustion, the heat energy that discharges makes the combustion gas that produces High Temperature High Pressure in the cylinder.Combustion gas is expanded and is promoted the piston work done, through connecting rod or other mechanisms mechanical work is exported again, drives follower work.

Particularly, with reference to the configuration of the flat opposed motor 100 of prior art shown in Figure 1.Engine comprises the cylinder of pair of opposed, is respectively left cylinder 101 and right cylinder 102.Settle the pair of opposed piston in the left side cylinder 101, as shown in Figure 1 left outer piston PLO and left inner carrier PLI move in cylinder wall 117 internal linear.Settle the pair of opposed piston in the right cylinder 102, as shown in Figure 1 right outer piston PRO and right inner carrier PRI move in cylinder wall 118 internal linear.Also show suction port 103 and 104 on left side cylinder 101 and the right cylinder 102, air outlet 107 and 108 and filler opening 105,106.Though engine is placed on the horizontal plane usually, it also can move in the other direction.For making things convenient for reference, on this explanation and drawing, direction is called as level or vertical sometimes, to show their orthogonality relation.The running shaft of crank is positioned at opposed cylinder axis, and direction is perpendicular to the direction of draw surface and cylinder.Piston rod 109 has been connected the center of asymmetric crank web 1 on PLO and PLI and the crank and 2 with 113.Equally, piston rod 110 is connected the center of asymmetric crank web 4 on piston PRO and PRI and the crank and 3 with 114.Fig. 1 has shown the 0 degree position of motor at crank.(be defined as " top dead center ", or left cylinder TDC).On this position, left outer piston PLO and left inner carrier PLI are the most approaching each other.When crank rotates to angle roughly, in direct injection ic engine, fuel oil will be injected into left cylinder through filler opening 105, burning beginning then.During this time, the suction port 103 of left cylinder 101 and air outlet 107 are respectively by PLO and PLI complete closed.Owing to advance 12.5 degree approximately on opportunity of piston actuated air outlet, 17.5 degree that lag behind approximately the opportunity of piston actuated suction port, two piston PLO and PLI are reaching atdc can slightly move to right (left inner carrier, PLI is then in opposite direction).The motion path of asymmetric crank web 2 and 3 on crank is by outer ring 131 expressions, and the motion path of asymmetric crank web 1 and 4 on crank is by outer ring 133 expressions.Crank promotes different with the hysteresis angle with the propelling of piston, but piston is identical in the speed of top dead center.

In right cylinder 102, right inner carrier PRI and right outer piston PRO range of a signal are down to point farthest.The suction port 104 and the air outlet 102 of right cylinder 102 are open state, and are clearing up the waste gas of last round of burn cycle.As the piston of left hand cylinder, PRI and PRO have slight speed, and at this in this case, they can take back, and outer piston PRO arrives behind point can change direction.

Among Fig. 2, the plane that on behalf of the crank of centerline axis and flat opposed motor shown in Figure 1 in the cylinder chamber, line CP belong to jointly.Circle 131 and 133 represented respectively on the inner carrier push rod 113 109 rotations of crank pin 1 center and outer piston pull bar circular path.Because outer piston adds that the combination of cylinder lever connecting rod is heavier with the combination that is connected push rod than inner carrier usually, the outer piston impulse force must be less than the inner carrier impulse force, with balanced engine.For example, shown in the way that crank pin 1,2 is the phase angle of one 30 degree.Crank pin 1 and 2 top dead center positions at left cylinder.

In the opposed motor of the traditional double that Fig. 1, Fig. 2 and Fig. 3 showed; Centre and cylinder hole axle are all along on the common plane CP of the running shaft 130 of crank; When motor at top dead center or thereafter soon, do not have connecting rod and plane parallel (annotate crank be move clockwise).Fig. 3 shows that more clearly the center line that is defined in pull bar 113 and 109 is an angle, and when left cylinder was in top dead center position, the center line of axis hole or axle were all on the CP of plane simultaneously.This is because the slight rising of crank pin 1 and 2 on top dead center axle 130.(when right cylinder during at top dead center, identical situation can take place).Because this angle, when firing pressure is maximum, each piston causes between piston and the casing wall 117 constantly generation to apply when burning expansion move to connecting rod lateral force FLO and FLI.This lateral force can produce friction, and therefore the efficient to motor produces reaction.

Therefore, a kind of improvements over the prior art are provided, avoid efficient to motor to produce counteractive explosive motor and just seem particularly important.

Summary of the invention

The objective of the invention is the friction and the vibration characteristics of above-mentioned flat opposed motor are improved.The location and the layout of each key element through strengthening motor have reduced because engine cycle is applied to the lateral force between piston and the cylinder wall, and balance strength and the mass force friction and the vibration that produce.The present invention provides a kind of explosive motor; Comprise at least one pair of opposed cylinder, be respectively arranged with a pair of inside and outside piston in each cylinder, a crank and some piston rods; The two ends of each piston rod connect the asymmetric crank web on a piston and the crank respectively, wherein:

The cylinder of said opposed placement makes that the center line of opposed pistons moves in each cylinder along major axis in the cylinder when engine-operated;

Each piston rod that connects piston and crank web all has a center line of confirming, extends in every pair of piston and the crank web;

Said crank and asymmetric crank web are placed between the said opposed cylinder; Make that inner carrier reaches atdc in center line and the engine cycle of the piston rod that connects said inner carrier and its corresponding crank web; When combustion force reached peak value, piston was parallel on long axis direction.

Above-mentioned explosive motor, wherein, the opposed placement of said cylinder makes its major axis on same plane;

Said crank and asymmetric crank web are placed between the said opposed cylinder; Make the crank running shaft depart from predetermined distance from common plane; Also make the center line of inside and outside opposed pistons bar be parallel to fully that inner carrier reaches atdc in engine cycle, the cylinder axis that belongs to when combustion force reaches peak value.

Above-mentioned explosive motor, wherein, the major axis of each said cylinder is all on a common horizontal plane.

Above-mentioned explosive motor, wherein, the running shaft of said crank and said common plane have the skew of certain distance in vertical direction.

Above-mentioned explosive motor, wherein, the running shaft of said crank and said common plane have the skew of certain distance on orthogonal direction.

Above-mentioned explosive motor, wherein, said opposed cylinder is placed along a common major axis.,

The present invention has reduced because engine cycle is applied to the lateral force between piston and the cylinder wall through the location and the layout of each key element of reinforcement motor, and the friction and the vibration of balance strength and mass force generation.

Description of drawings

Through reading the detailed description of non-limiting example being done with reference to following accompanying drawing, it is more obvious that the present invention and characteristic thereof, profile and advantage will become.Mark identical in whole accompanying drawings is indicated identical part.Painstakingly proportionally do not draw accompanying drawing, focus on illustrating purport of the present invention.In the accompanying drawings, for cheer and bright, the part parts have been amplified.

Fig. 1 is the sectional view of the operating element configuration of flat opposed motor in the prior art, and the running shaft of crank and piston motion axle are at grade;

Fig. 2 shows in the prior art, the crank running shaft in two concentric circles, its respectively path of travel and the left piston of representative graph 1 piston neck in engine cycle in the position of top dead center; Fig. 3 shows in the prior art, and connecting rod in left piston and Fig. 1 and crank are at the reduced graph of top dead center position; Fig. 4 shows according to the first embodiment of the present invention, the crank running shaft in two concentric circles, and the piston neck is in the path of travel of engine cycle and the left piston position at top dead center; Fig. 5 is a left piston in the first embodiment of the invention, and connecting rod and crank are at the reduced graph of top dead center; Fig. 6 has shown the crank running shaft in two concentric circles, has embodied respectively in the first embodiment of the invention, and the piston neck is in the path of travel and the position of left and right sides piston after top dead center of engine cycle;

Fig. 7 is a left piston in the second embodiment of the invention, and connecting rod and crank are shortly past the reduced graph of top dead center position.

Embodiment

Below in conjunction with accompanying drawing and embodiment the present invention is further elaborated.Embodiment described herein only is used to explain the present invention, and is not used in qualification protection scope of the present invention.

In conjunction with above-mentioned prior art; Explosive motor disclosed by the invention comprises at least one pair of opposed cylinder; With reference to left cylinder shown in Figure 1 101 and right cylinder 102; Be respectively arranged with a pair of inside and outside piston (with reference to PLO and PLI) in each cylinder; One crank and some piston rods; The two ends of each piston rod connect the asymmetric crank web on a piston and the crank respectively; Wherein, Technical characteristics of the present invention is: the cylinder 101 and 102 of said opposed placement makes that the center line of opposed pistons moves in each cylinder along major axis in the cylinder when engine-operated; Each piston rod that connects piston and crank web all has a center line of confirming, extends in every pair of piston and the crank web; Said crank and asymmetric crank web are placed between the said opposed cylinder; Make that inner carrier reaches atdc in center line and the engine cycle of the piston rod that connects said inner carrier and its corresponding crank web; When combustion force reached peak value, piston was parallel on long axis direction.

Particularly, with reference to the figure 4 and the first embodiment of the present invention illustrated in fig. 5.In said first embodiment, the opposed cylinder of the motor shown in Fig. 1, left cylinder 101 keeps direction with right cylinder 102, makes cylinder-bore parallel fully with the linear path of centre, and is on the same horizontal plane.Yet as shown in Figure 4, in first embodiment, the running shaft 130 ' of crank has the vertical shift of desired distance " d " with the left cylinder 101 among Fig. 4.Crank web pin 1 ' and 2 ' is repositioned on the crank pin respectively, and along circle 133 ' and circle 131 ' rotation, equally with Traditional engine keeps identical phase angle to obtain asymmetric opportunity.For example the phase angle is 30 degree.When left cylinder during at top dead center position, Fig. 4,5 positions that shown crank pin 1 ' and 2 '.When opposed pistons PRO and PRI reached top dead center position, same effect can appear in right cylinder 102 in the present embodiment.

As shown in Figure 5, the connecting rod 109,113 that is positioned at the top dead center place in the position of piston PLO, PLI and the left cylinder 101 shows the conformity with Fig. 4 figure.In this configuration, the running shaft of crank is from the common plane CP ' offset distance " d " of opposed cylinder axis definition; Or from the planar offset at cylinder axis place.Use the result of crankshaft skew to be, engine is designed to when engine reaches top dead center or just surpassed, and the connecting rod of all pistons is parallel to common plane (motion of centre) fully.In this configuration, when the peak value of combustion phase (power stroke) minimized, lateral force possibly act on the piston.Because shortly past the combustion force of top dead center, on piston rod,, piston then do not have active force after moving along cylinder wall when being pressed at first along the directive effect that is parallel to cylinder axis.Along with more combustion force directly acts on crank, masterpiece still less is used for cylinder wall, friction, and vibrations, heat has improved efficient with the minimizing of wearing and tearing.

In first embodiment, opposed cylinder is positioned in along horizontal plane to roughly the same level.Move along the planar linear at place, cylinder axis center at the center of piston.The crank that piston connects has a running shaft, and the direction perpendicular to piston motion is parallel to in-plane, and the skew of intended distance is still arranged with the plane.We can pass through chosen distance, make asymmetrical crank web, to realize the mass force of asymmetric port sequential and balance, make that piston rod center line and common plane are arranged when each piston reaches top dead center separately or just surpassed.Such arrangement has been arranged, just do not acted on the side pressure on the piston, side walls minimise friction simultaneously during burning.Such minimise friction has been arranged, reduced vibration, improved operating efficiency.

With reference to figure 6 with shown in Fig. 7, according to a second embodiment of the present invention.In the present embodiment, corresponding first of cylinder-bore axle moves the centre of one of two opposed cylinders (being right cylinder in this example) along the place, and with crank running shaft 130 " definition horizontal plane CPR at grade.Piston PLO in the opposed cylinder (left side) and PLI are positioned in the center that makes them pairing second of CPL axle move along the cylinder-bore plane, and are parallel to first, but the distance " dd " predetermined with the plane CPR vertical shift of definition.In this embodiment, inner carrier PLI " catch bar 113 " with crank pin 1 " be connected inner carrier PRI " push rod 114 of (not shown) " be connected with crank pin 3 '.Consequently, each connects the push rod of piston and corresponding asymmetric crank web, when expansive force reaches peak value in burning cycle, and the cylinder axis when being parallel to the predetermined point shortly past top dead center fully.Among Fig. 7, left cylinder is by the piston PLO shortly past top dead center " and PLI " expression, the center line that push rod 113 is connected to the PLI of inner carrier is parallel to a CPL.There is a very little angle on pull bar 109 and the plane of outer piston PLO, but in the motor of this type, still can be considered to an acceptable compromise.Pull bar 109 " the long lever external piston that provides produces minimum lateral force.Therefore in the process of burning expansion, outer piston is little to the frictional ratio inner carrier of cylinder wall.Connect push rod through the location inner carrier and be parallel to corresponding cylinder axis fully, after the lateral force that former inner carrier acts on cylinder wall is eliminated, makes and minimise friction in power stroke, improved efficient shortly past top dead center.

In a second embodiment, the centre in one of two opposed cylinders is moved along corresponding first of cylinder-bore.First orthogonal vertical defined first plane in the intersection point of crank running shaft.Piston in another opposed cylinder is settled along second direction corresponding to the cylinder diameter axle, and parallel with first, but with first plane skew of intended distance is arranged.In this embodiment, each piston rod extends on the asymmetric crank web from the inner carrier of cylinder, is parallel to the state of inner carrier when top dead center position fully.This position is relevant with the peak that expansive force reaches during burning.Make its certain in circulation constantly parallel with the piston motion direction through the connecting rod of settling piston, in combustion process, then do not have the side active force to be applied on the side wall so, in each power stroke, minimise friction is to provide higher efficient.

These two embodiments have described two kinds of inventive methods, with the inner friction of minimizing explosive motor, and significantly improve the internal-combustion engine engine efficiency.

It should be appreciated by those skilled in the art that those skilled in the art combine prior art and the foregoing description can realize said variant, do not repeat them here.Such variant does not influence flesh and blood of the present invention, does not repeat them here.

More than preferred embodiment of the present invention is described.It will be appreciated that the present invention is not limited to above-mentioned particular implementation, wherein equipment of not describing in detail to the greatest extent and structure are construed as with the common mode in related domain and implement; Any those of ordinary skill in the art; Do not breaking away under the technology implementation example scope situation of the present invention; All can utilize the method and the technology contents of above-mentioned announcement that technology implementation example of the present invention is made many possible changes and modification; Or being revised as the equivalent embodiment of equivalent variations, this does not influence flesh and blood of the present invention.Therefore, every content that does not break away from technology implementation example of the present invention, all still belongs in the scope of technology implementation example of the present invention protection any simple modification, equivalent variations and modification that above embodiment did according to technical spirit of the present invention.

Claims (6)

1. explosive motor; Comprise at least one pair of opposed cylinder, be respectively arranged with a pair of inside and outside piston in each cylinder, a crank and some piston rods; The two ends of each piston rod connect the asymmetric crank web on a piston and the crank respectively, it is characterized in that:
The cylinder of said opposed placement makes that the center line of opposed pistons moves in each cylinder along major axis in the cylinder when engine-operated;
Each piston rod that connects piston and crank web all has a center line of confirming, extends in every pair of piston and the crank web;
Said crank and asymmetric crank web are placed between the said opposed cylinder; Make that inner carrier reaches atdc in center line and the engine cycle of the piston rod that connects said inner carrier and its corresponding crank web; When combustion force reached peak value, piston was parallel on long axis direction.
2. explosive motor according to claim 1 is characterized in that, the opposed placement of said cylinder makes its major axis on same plane;
Said crank and asymmetric crank web are placed between the said opposed cylinder; Make the crank running shaft depart from predetermined distance from common plane; Also make the center line of inside and outside opposed pistons bar be parallel to fully that inner carrier reaches atdc in engine cycle, the cylinder axis that belongs to when combustion force reaches peak value.
3. explosive motor according to claim 2 is characterized in that, the major axis of each said cylinder is all on a common horizontal plane.
4. explosive motor according to claim 3 is characterized in that, the running shaft of said crank and said common plane have the skew of certain distance in vertical direction.
5. explosive motor according to claim 2 is characterized in that, the running shaft of said crank and said common plane have the skew of certain distance on orthogonal direction.
6. explosive motor according to claim 2 is characterized in that, said opposed cylinder is placed along a common major axis.
CN2011102851103A 2011-09-23 2011-09-23 Internal combustion engine CN102352794A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011102851103A CN102352794A (en) 2011-09-23 2011-09-23 Internal combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011102851103A CN102352794A (en) 2011-09-23 2011-09-23 Internal combustion engine

Publications (1)

Publication Number Publication Date
CN102352794A true CN102352794A (en) 2012-02-15

Family

ID=45576423

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011102851103A CN102352794A (en) 2011-09-23 2011-09-23 Internal combustion engine

Country Status (1)

Country Link
CN (1) CN102352794A (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03185221A (en) * 1989-12-13 1991-08-13 Fuji Heavy Ind Ltd Reciprocating engine
CN1127325A (en) * 1995-01-17 1996-07-24 盖里斯·L·迪里斯尔 Varying offset engine
JP2003194172A (en) * 2001-12-12 2003-07-09 Keisei Sai Dual piston crank connecting rod power transmission mechanism
CN1533471A (en) * 2001-07-20 2004-09-29 史古德利集团有限责任公司 Split four stroke cycle IC engine
US20070256650A1 (en) * 2006-05-08 2007-11-08 Ethelmer Pflughoeft Stephen A Styled the system, asymmetric, engine/pump design
CN101566093A (en) * 2003-06-25 2009-10-28 先进动力科技公司 Internal combustion engine

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03185221A (en) * 1989-12-13 1991-08-13 Fuji Heavy Ind Ltd Reciprocating engine
CN1127325A (en) * 1995-01-17 1996-07-24 盖里斯·L·迪里斯尔 Varying offset engine
CN1533471A (en) * 2001-07-20 2004-09-29 史古德利集团有限责任公司 Split four stroke cycle IC engine
JP2003194172A (en) * 2001-12-12 2003-07-09 Keisei Sai Dual piston crank connecting rod power transmission mechanism
CN101566093A (en) * 2003-06-25 2009-10-28 先进动力科技公司 Internal combustion engine
US20070256650A1 (en) * 2006-05-08 2007-11-08 Ethelmer Pflughoeft Stephen A Styled the system, asymmetric, engine/pump design

Similar Documents

Publication Publication Date Title
CA2696038C (en) Knock resistant split-cycle engine and method
JP5690772B2 (en) Internal combustion engine
US5673665A (en) Engine with rack gear-type piston rod
US6698405B2 (en) Reciprocating internal combustion engine with balancing and supercharging
JP3898729B2 (en) Split 4-stroke cycle internal combustion engine
EP0357291B1 (en) Crankless reciprocating machine
US20150101557A1 (en) Rotary piston internal combustion engine
US20090007861A1 (en) Double Action Piston Assembly
EP1866530B1 (en) Double piston cycle engine
RU2506443C2 (en) Ice with interconnected pistons
CN202228184U (en) Linear piston-thrust internal combustion engine
US5524577A (en) Rotary engine
CN103299046A (en) High-efficiency linear combustion engine
US7415962B2 (en) Internal combustion engine
CN101960088B (en) Reciprocating combustion engine
EP1819912B1 (en) Reciprocating machine
US9512777B2 (en) Internal combustion engines
US7434550B2 (en) Internal combustion engine
US9194287B1 (en) Double cam axial engine with over-expansion, variable compression, constant volume combustion, rotary valves and water injection for regenerative cooling
WO2013080521A1 (en) Exhaust device for multicylinder engine
KR20130111560A (en) Split-cycle air hybrid v-engine
US9951679B2 (en) Reciprocating internal combustion engine
US20140102418A1 (en) Opposed piston engine with non-collinear axes of translation
CN101529071B (en) Reciprocating engine
JP6588900B2 (en) Spool shuttle crossover valve in split cycle engine

Legal Events

Date Code Title Description
PB01 Publication
C06 Publication
SE01 Entry into force of request for substantive examination
C10 Entry into substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20120215

C12 Rejection of a patent application after its publication