CN2190166Y

CN2190166Y - IC engine with cam piston

Info

Publication number: CN2190166Y
Application number: CN 94203045
Authority: CN
Inventors: 武守仁
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-01-28
Filing date: 1994-01-28
Publication date: 1995-02-22
Anticipated expiration: 2004-01-28

Abstract

The utility model provides an IC engine with a cam type piston, mainly composed of a cylinder body, a piston, a piston ring, a pressurizer, an air charging and exhausting mechanism, an ignition mechanism, a transmission pin for a piston, a translational guideway and a solid cam. By the aid of a pin shaft and the solid cam, the translation of the piston is changed into rotation; a traditional crank and connecting rod transmission mechanism is replaced. The utility model has the advantages of novel design principle, peculiar design principle, compact structure, reliability, small size, light weight, high specific power, low oil consumption, low exhausting pollution, stable work and long service life, and is an energy saving light internal-combustion engine which is widely used for automobiles, trains, airplanes, airships, ships, motorcycles, bicycles, etc.

Description

IC engine with cam piston

The utility model belongs to the internal-combustion piston engine technical field.

Traditional internal-combustion piston engine all is the rotation that the translation of piston is become bent axle by connecting rod.At present advanced in the world motor, Ri Ben Toyota Motor's motor (95 horsepowers, 8 liters/100 kilometers of oil consumption) for example all adopts the internal-combustion engine of this structure.This motor exists that volume is big, benzene is heavy, complex structure, and transmission is not steady, and the intrinsic disadvantage that resistance loss is big makes the raising of engine performance be subjected to certain limitation.

The purpose of this utility model is that its transmission principle and mechanism are improved, overcome the crank linkage driving system resistance loss greatly, steady shortcoming, thereby it is little to make motor have a volume, in light weight, specific power is big, and oil consumption is few, and tail gas pollution is few, it is more steady to move, remarkable advantages such as applied range.

The utility model is achieved in that a kind of cam-type piston internal-combustion engine, comprise cylinder body, piston, piston ring, pressurized machine, intake and exhaust mechanism, ignition mechanism, oil lubrication device and cooling unit, it is characterized in that on the piston with the direction of its axis normal on be provided with gear pin, have bar hole on the cylinder body so that the bearing pin translation, near the bearing pin axle head, piston is axially arranged with bearing pin translation guide rail, and this guide rail can be provided with separately, or be cylinder body itself, so that gudgeon pin shaft is done reciprocal translation.The bearing pin axle head is equipped with bearing.The side of cylinder body, piston is axially arranged with solid cam and pedestal thereof, the bearing pin axle end bearing matches with oblique driving guiding groove on the cylinder of solid cam garden, the line of centres and the angle α between camshaft line of two of two grooves solstics and two closest approaches (for the camshaft end face) are 30 °-60 ° on the guide groove, be preferably 40 °-50 °, compression ignite work done angle β on the guide groove unfolded drawing is 50 °-150 °, be preferably 60 °-90 °, guide groove (or being subjected to the line of force) unfolded drawing curve is preferably sinusoidal curve.Rail wheel in the time of can on the solid cam axle flywheel, distributor being housed, the transmission pulley of He Shui, oil or air-cooling device with the synchronous operation (this puts same routine techniques) of controlling other additional devices, or is taked other additional device synchronous operation control mechanism.

Above-mentioned gudgeon pin shaft driving mechanism can be that single piston is lighted mechanism, also can be the two combustion of double-piston mechanism, not only can realize the four-stroke motion, also can realize the two-stroke motion, and this is that the crank-linkage type internal-combustion engine is beyond one's reach.The gudgeon pin shaft driving mechanism can be a cover, also can be more than two covers, is loaded on solid cam garden week position, and each bearing pin axle end bearing all matches with the guiding groove of solid cam, be called parallel, thereby increased exponentially the power of motor.This internal-combustion engine also can be that the centre couples together by solid cam axle or shaft coupling etc., is called tandem more than 2 covers, displaces to realize high-power.

Above-mentioned gudgeon pin shaft driving mechanism and solid cam can be separated (as above-mentioned), also can comprise formula, and promptly solid cam (being three-dimensional cam ring this moment) is enclosed in the outside of cylinder body.Comprise formula and can be divided into two kinds again, a kind of is that cylinder piston is rotary, and three-dimensional cam ring is a state type, and another kind is that cylinder is a state type, and three-dimensional cam ring is rotary.First kind: the cylinder body two ends all are fixed on the reel, reel is placed on the bearing support, three-dimensional cam ring is fixed on the support body, the reel outside is an end cover, end cover and three-dimensional cam ring fix, driving guiding groove in bearing pin axle end bearing on the piston and the three-dimensional cam ring on the cylinder of garden matches, the angle [alpha] of guiding groove, and the unfolded drawing of compression ignite work done angle and guiding groove is all as mentioned above.Exhaust gear can be designed to various ways according to concrete structure, for example can be: on reel, be provided with vent and firing chamber through hole, on end cover, be provided with vent and firing chamber, also can between end cap and reel, add an oil seal cover, fix with end cap, oil seal cover is provided with vent and firing chamber etc.Or the exhaust burning structure is located on the axle, the structure as stopcock also can, form can be multiple.The air inlet duct can be located on the cylinder, and is similar with ordinary internal combustion engine.Above-mentioned ignition mechanism can adopt mechanical ignition, drives distributor as time spent rail wheel, makes plug ignition, or uses electronic striking, strikes sparks as piezoelectric constant.Flywheel can be contained on the axle.Cold seal and lubrication system can drive pump with shaft upper pulley and realize, all can be similar with ordinary internal combustion engine.

Second kind, cylinder body is fixed on the support body, and three-dimensional cam ring wraps in the outside of cylinder body, has bearing to cooperate therebetween, can relatively rotate, between cylinder end caps and three-dimensional cam ring sealing mechanism is arranged,, guarantee oil seal as seal ring, pad, bar hole is arranged on the cylinder body, be provided with bearing pin translation guide rail, the gudgeon pin shaft axle end bearing matches with guiding groove on the three-dimensional cam ring, and relevant explanation of guiding groove and the explanation of compression ignite work done angle are with above-mentioned.Its admission gear is located on the cylinder block and head, and is similar with ordinary internal combustion engine.Exhaust gear can be designed to various ways according to concrete structure, and reason is also similar with ordinary internal combustion engine.As shown in the Examples a kind of perhaps, adds a sealing plate and cam ring is fixed between cylinder cap and cylinder body, be provided with port on the sealing plate, or chamber passage, also is provided with the into structure in round road and firing chamber on cylinder cap, gets final product by the cycle intake and exhaust guaranteeing.Flywheel can be contained in outside the cam ring, cam ring itself also can replace flywheel, the available common oil pump formula of oil lubrication device, also available oil immersed type, ignition mechanism available electron formula is as implementing illustration, also available mechanical type, this constantly rail wheel can be contained on the cam ring, these design principles are all similar with ordinary internal combustion engine.

Effect of the present utility model is tangible, has the distinguishing feature that volume is little and compact, in light weight, specific power is big, and it is fuel-efficient, because this special construction has changed the too big kind of drive of brace and connecting rod framework resistance in the past, thereby can improve power, reduce oil consumption, reduce toxic emission, improved smoothness, compact appearance is neat, and scope of design is wide.Can realize high rotating speed, high-power, as long as change piston stroke and cam diameter, this also be in the past crank engine can not accomplish.

Below for three embodiments and in conjunction with the accompanying drawings the utility model being elaborated, it is not as to qualification of the present utility model.

Embodiment's 1 separated two stroke IC engine structural representation on Fig. 1.

Fig. 2 is the left TV structure schematic representation of Fig. 1.

Fig. 3 is a left side TV structure schematic representation when for the four-stroke structure.

Fig. 4 is that to comprise formula two-stroke cam be the state type structural representation to embodiment 2.

Fig. 5 is that to comprise formula two-stroke cam be campaign-styled structural representation to embodiment 3.

Fig. 6 is a α angle schematic representation.

Fig. 7 is a guiding groove unfolded drawing β angle schematic representation.

Referring to Fig. 1, Fig. 2.1 is translation guide rail (following rail plate) among the figure, 2 cylinder bodies for the band cooling jacket, and 3 is that (a kind of venting gas appliance) shakes wall, 4 is exhaust valve, and 5 is the exhaust valve chamber cap, and 6 are exhaust valve switching pull bar, be connected on the

gudgeon pin shaft

12,7 is cylinder cap, and 8 are the dustproof sleeve pipe of pull bar, 9 is piston, and 10 is the intake duct on the cylinder body, links to each other with pressurized machine, 11 is cover plate, and 13 is end ring, and 14 are track bearing (being contained on the bearing pin), 15 is the bearing pin set screw nut, and 16 are translation guide rail (upper track plate), and 17 is piston ring, 18 is spark plug, and 19 is flywheel casing, and 20 is flywheel, 21 are oil seal washer, and 22 is bearing, and 23 is solid cam mounting casing, 24 is solid cam, 25 is guiding groove, and 26 is the bearing pin axle end bearing, and 27 is lubricating pump, 28 wheels of rail when being distributor, 29 is the cooling system belt pulley, and 30 is the chi band, and 3 is exhaust valve rocker arm, 31 are chi wheel (strap cam), 32 is inlet valve rocker, and 33 is that distributor (linking to each other with spark plug 18) 34 is Carburetor, and 35 is outlet pipe.

Its working procedure is, when piston 9 during at top dead center, spark plug 18 is lighted mixed gas outburst work done, promote descent of piston, during to about 45 °-60 ° of lower dead center, exhaust valve 4 is opened, exhaust, during 5 °-30 ° of descending lower dead center precontracts, inlet hole is opened, and carries out scavenging, when coming downwards to the about 10-20 of lower dead center °, exhaust valve closing, come the mixed gas of automatic pressure intensifier to enter cylinder with certain pressure this moment, pressurization be performed until piston from lower dead center is up close inlet hole till.Piston continue to be gone up the behavior compression process, and when walking to 6-12 ° of top dead center precontract, next work cycle is carried out in 18 igniting of open fire plug.When left piston during at top dead center, right piston then carries out the scavenging pressurization in lower dead center, close inlet hole for the about 5-30 of piston stroking upward °, mixed gas is compressed, when being depressed into 6-12 ° of top dead center precontract, spark ignitor, the mixed gas outburst work done in the firing chamber promotes descent of piston to the about 45-60 of lower dead center °, exhaust valve is opened, carry out exhaust, when coming downwards to 10-20 ° of lower dead center precontract, intake valve is opened, carry out scavenging, when coming downwards to lower dead center precontract 10-18, exhaust valve closing, come the mixed gas of automatic pressure intensifier to enter cylinder scavenging this moment.Pressurization be performed until piston from lower dead center is up close inlet hole till.Carry out so again and again, the translation of gudgeon pin shaft 12 is changed into rotatablely moving by solid cam 24 and top guiding groove 25 thereof.Guide groove α can be 30 °, 35 °, 40 °, 45 °, 50 °, 55 °, 60 ° etc., and β can be 50 °, 60 °, 70 °, 80 °, 90 °, 100 °, 110 °, 120 °, 130 °, 140 °, 150 ° etc.Among Fig. 2 during distributor rail wheel 28 by chi band 30 and the chi wheel 31 control distributors 33 and flower plug 18 igniting of living, by chi wheel (cam) 31 by exhaust valve rocker arm 3 and inlet valve rocker 32, the work of control inlet and exhaust valve.

Among Fig. 3, be 2 cover gudgeon pin shaft driving mechanisms, be distributed on the week of solid cam garden that 36 is starter motor, 37 is the oil end, and 38 is suction tude, and 39 is the distributor cog wheel transmission shaft, and 40 is Carburetor.

Referring to Fig. 4,41 is pressurized machine, and 42 is intake duct, and 43 is the pressurized machine belt pulley, and 44 is end cap, and 45 is sealing plate, and 46 is the firing chamber, and 47 is reel, and 48 is air outlet flue, and 49 is solid cam.Cylinder body 2 and reel 47 are fixing, are located at exhaust port on the reel, combuster hole and exhaust port on the sealing plate 45, and sealing plate 45 and end cap 44 and solid cam 49 are fixing.When gudgeon pin shaft 12 is done translation simultaneously, because 25 effects of cam 49 guide-track grooves rotate cylinder body 2 and piston 9 simultaneously, drive end axle and flywheel 20 rotations, outputting power, rail wheel 28, cooling system belt pulley 30 drive and control other fixture work simultaneously during distributor.

Referring to Fig. 5,50 is bearing, and 51 is cam ring, and 49 end faces are provided with end cam, with control pole 52, make rocking arm 3 rotations, 4 work of control outlet valve, 53 is the oil seal circle, 54 is cylinder cap, and 56 are the magnet piece on the cam ring that is fixed on rotation, with the ignition operation of control electronic lighter 55.Above label is identical, and the part title is also identical in addition.

Below be the techno economic parameter table of comparisons of 1 one model machines of embodiment and crank-linkage type traditional combustion engine:

Important technological parameters relatively

Claims

1, a kind of cam-type piston internal-combustion engine, comprise cylinder body (2), piston (9), piston ring (1) (7), pressurized machine (41), intake and exhaust mechanism, ignition mechanism, oil lubrication device and cooling unit, it is characterized in that piston (9) go up with the direction of its axis normal on be provided with gear pin (12), have bar hole on the cylinder body, near the bearing pin axle head, piston is axially arranged with bearing pin translation guide rail (1,16), the bearing pin axle head is equipped with bearing (26), cylinder body (2) side, piston is axially arranged with solid cam (24) and pedestal (23) thereof, bearing pin axle end bearing (26) matches with driving guiding groove (25) on the cylinder of solid cam garden, and the line of centres of two solstics and two closest approaches and the angle between camshaft line (α) are 30 °-60 ° on the guide groove.

2, cam-type piston internal-combustion engine according to claim 1 is characterized in that guide groove (α) is 40 °-50 °, and the compression ignite work done angle (β) on the guide groove unfolded drawing is 50 °-150 °.

3, cam-type piston internal-combustion engine according to claim 2 is characterized in that guide groove unfolded drawing curve is a sinusoidal curve.

4, according to claim 1,2 or 3 described cam-type piston internal-combustion engines, it is characterized in that having with the two combustion of cylinder double-piston mechanism, this mechanism has more than 2 covers, the garden that is loaded on solid cam is on week, each bearing pin axle end bearing all matches with guiding groove on the solid cam, more than this internal-combustion engine 2 covers, contact mutually by solid cam axle or shaft coupling.

5, a kind of cam-type piston internal-combustion engine, comprise cylinder body (2), piston (9), piston ring (17), pressurized machine (41), ignition mechanism, intake and exhaust mechanism, oil lubrication device and cooling unit, it is characterized in that piston (9) go up with the direction of its axis normal on be provided with gear pin (12), have bar hole on the cylinder body, be provided with bearing pin translation guide rail (1), the bearing pin axle head is equipped with bearing, the cylinder body two ends all are fixed on the reel (47), reel (47) is placed on the bearing support, three-dimensional cam ring (49) is enclosed in the outside of cylinder body, be fixed on the support body, end cover (44) is established in reel (47) outside, end cap (44) and three-dimensional cam ring (49) fix, bearing pin axle end bearing (26) matches with driving guiding groove (25) on the cylinder of the interior garden of three-dimensional cam ring (49), and the line of centres of two solstics and two closest approaches and the angle between camshaft line (α) are 30 °-60 ° on the guide groove.

6, cam-type piston internal-combustion engine according to claim 5 is characterized in that guide groove (α) is 40 °-50 °, and the compression ignite work done angle (β) on the guide groove unfolded drawing is 50 °-150 °.

7, cam-type piston internal-combustion engine according to claim 6 is characterized in that guide groove unfolded drawing curve is a sinusoidal curve.

8, a kind of cam-type piston internal-combustion engine, comprise cylinder body (2), piston (9), piston ring (1) (7), pressurized machine (41), ignition mechanism, intake and exhaust device, the oil lubrication cooling unit, it is characterized in that piston (9) go up with the direction of its axis normal on be provided with gear pin (12), cylinder body (2) is fixed on the support body, between cylinder end caps (54) and cam (49) seal ring (53) is arranged, cylinder body has bar hole on (2), be provided with bearing pin translation guide rail (1), the bearing pin axle head is equipped with bearing (26), three-dimensional cam ring (49) wraps in the outside of cylinder body (2), the centre has bearing (50) to cooperate, bearing pin axle end bearing (26) matches with driving guiding groove (25) on the cylinder of solid cam (49) garden, and the line of centres of two solstics and two closest approaches and the angle between camshaft line (α) are 30 °-60 ° on the guide groove.

9, cam-type piston internal-combustion engine according to claim 8 is characterized in that guide groove (α) is 40 °-50 °, and the compression ignite work done angle (β) on the guide groove unfolded drawing is 50 °-150 °.

10, cam-type piston internal-combustion engine according to claim 9 is characterized in that guide groove unfolded drawing curve is a sinusoidal curve.