WO1994002722A1

WO1994002722A1 - Two stroke high power engine

Info

Publication number: WO1994002722A1
Application number: PCT/KR1993/000063
Authority: WO
Inventors: Jung Kyu Kim
Original assignee: Jung Kyu Kim
Priority date: 1992-07-23
Filing date: 1993-07-23
Publication date: 1994-02-03
Also published as: AU4587393A; KR940002482A

Abstract

This invention relates to two stroke high power internal combustion engines. Because the former engine has the maximal pressure of combustion when piston and crankshaft are on the same line, work efficiency is reduced. Ignition is after T.D.C.. This invention increases heat and work efficiency. The cylinder block (1) consists of two combustion cylinders (3) and a compression cylinder (2). Combustion crankshaft (6) and compression crankshaft (5) are connected by combustion gear (9) and compression gear (8) whose gear rate is 2:1. So it is suitable for ships, heavy equipments, and busses which need much power at low and middle speed.

Description

TWO STROKE HIGH POWER ENGINE.

TECHINCAL FIELD. this invention is internal combustion piston engine.

BACKGROUND ART. Since the old engine has the best pressure of explosion combusion when the piston and the crank shaft are on a straight line, the mechanical stress don't operate

on the engine rather than the rotative power transmits the crank shaft, the stπⁱcture

of engine is heavy and, because some heat energy generated in this moment rather spends heating the engine than transforms work, heat-efficiency and work-efficiency are reduced. Because one of two-rotation which achieves the four-stroke of intake,

compression, explosion and exhausion, does not generate power and only waste

power, and the output of power has the large weight and size, it is uneconomic.

Also, because the rotative velocity is widespread and the enclosing timing of

intaking valve is fixed in the regular rotative velocity, the engine has the low air

intaking rate at other rotative velocity and then has the small rotative take.

To improve the demerit of the old engine, this new engine invented, achieves

perfect four-storke in interval of two-stroke and makes explosion combustion at the

regular angle after the T. D. C. Therefore, this new engine promotes at the same

time the work and heat-efficiency and the output per weight and size. Also, the

new engine applies it to the adjustable cam to intake the largest amount of the air.

DISCLOSURE OF INVENTION

The basis of new engine is to perform intaking, condension, and stroke through

two-stroke movement, which is done by one-stroke of combustion piston(51).

If we explain the movement to you, Two exhaust valve⁽12-l) open and exhaust

SUBSTITUTE SHEET stroke takes place when combustion piston (51-1) moves from B. D. C. to T. D. C.

On the other hand, compression piston which rotates two times than former

sucks and compresses air from suction valve(ll)- When sucking air from suction

valve(ll), a little fuel spray with suction pipe (52) from small fuel injection(15).

The amount of fuel is provided with the ignited small fuel mixed gas as

compressed heat, electronic ignition, other ignition equipment

If combustion piston(51-l) reaches T. D. C, there is no space between cylinder

head(24) and combustion piston(51-l), with causing conbustion gas to compulsorily get it out through opened exhaust valve(12-l). Then, exhaust valve will be closed Since compression piston(50) is in pressure or there is no combustion space with combustion cylinder(3-l), throttle valve(41-l) still keeps on closing. After that,

in the combustion space which resulted from the lowering of combustion piston(51-l), compressed air brings strong electric whirl-pool into combustion

cylinder(3-l) through throttle nozzle(43-l) opened toward the side of combustion chamber, and begins to enter condensely, when compression piston(50) reaches T. D.

C, throttle valve(41-l) closes and finished the compression stroke, and the combustion space closes completely.

The compression proportion in such a case compares the volume of compression

cylinder(2) with that of combustion space and Combustion piston(51-l) relatively

lower and reaches the highest point of pressure of the point of the speed of compression pistion, combustion piston(50, 51-1).

As I mentioned before, if the fuel sprays from fuel injection nozzle(14-l) with

lowering compression piston(50-l) from T. D. C, it forms the mixed gas activated

from good high-temperature and high-pressure, which is suitable for compressed

SUBSTITUTE SHEE^" state.

The amount of fuel sprayed from fuel injection nozzle(14-l) excludes the amount that small fuel injection(15) sprays. As a result, the regular mixed gas is

formed rapidly and shorten, combustion time, and comes to complete combustion.

At the moment of closing throttle valve(41-l), the mixed gas begins to fire from two igniter(13-l) when the fire spreads around by high-temperature and high-

pressure, non-combustion mixed gas to the opposite under pressure starts to fire by

dint of glow coil(46-l) of the head of combustion piston(51-l). The mixed gas of

combustion cylinder(3-l) begins to combust at the same time and pushes combustion piston (51-1) down by high-pressure.

As two igniter(13-l) and glow coil(46-l) simultaneously ignites, the distance of transfering fire is out off and the time of combustion turns out shor

After combustion piston(51-l) reahes T. D. C, it transfers more rotating power to combustion crank shaft(6) than the old one because it has invariable rotation angle of combustion crank shaft(6).

When combustion piston(51) reaches T. D. C, throttle valve(41-l) rotates in 90° angle and make sure that it keeps throttle nozzle(43-l) in depth.

The cooling system of new engine is divided into combustion component and compression one. It is cooled by double radiator(48).

Since compression component circuits cooling waiter without thermostat and bring to cool compression cylinder(2), it increases the density of suction air.

Oil way, formed with a groove of triangle in circumference of spool(33), has

much exhausted oil as it has a wide space exposed according to the size of expansion. i — —

I SUBSTITUTE SHEET That is to say, according to the productive amount of oil pump, the size of

expansion of spool(33) must be determined.

The new engine supplies the oil inlet(37) with oil in proportion of the rotation

velocity of the oil pump and then the interior spool(33) in the hydraulic cylinder(30)

extends over spring. The interior spool(33) rotates the circumferential spur gear(31)

through the spool rack(35) and the rack spur gear(36), and then the circumferential

spur gear(31) rotates and the circumferential spur gear(31) attached to circumferential

spur gear(31) and the suction cam shaft(19) rotates together and removes toward the shaft. So, the inside female screw spline(25) of circumferemtial gear shaft(27) is fixed in the suction cam shaft(19), and turns aside the regulalr angle so much that it removes toward the shaft getting along the rotation male screw spline(26). At this

moment, the opposite female spline(28) removes along the male spϊine(29) united with

the adjustable cam(16), turns the adjustable cam(16), and turns aside the rugular angle, therefore the first fixture cam(17) is later. The new engine is much filled with the air by the suction valve(ll), has the large filling efficiency and improve the output The small fuel plunger(60) in the injection pump(53) pumps twice per one-

rotation of combustion crank shaft(6) and sends the small fuel without the

combustible range to small fuel injection(15) through small fuel injection pipe(55).

The pumping amount of the small fuel plunger(60) slightly adjusts in terms of

plunger handler(69). The plunger pumps once per one-rotation of combustion crank shaft(3) and then adds fuel through the fuel injection pipe(54) and the fuel

injection(14) so that the diluted mixed gas that pressures the combustion cylinder becomes the combustible range.

Also, another combustion piston(51-2) rotation at the phase 180° repeats the

I SUBSTITUTE SHEET same operations as above explanation and repeats the explosion and exhaustion strokes. Like this, the new engine turns continuously because two combustion

pistons(51-l, 51-2) and compression piston(50) have in turns the explosion-stroke. The characteristics of the new engine ignites under lowering stroke of the

combustion piston(51). Therefore, . it transmits larger rotation power to the

combustion crank shaft(6) but it lessens the pressure and the temperature because of

the increase of the combustion chamber volumn. Here, the new engine might have

the absence of pressure in the combustion chamber due to the slowering of

combustion velocity. But, because the velocity of the engine is primarily due to the expension pressure of combustion chamber, the velocity of combustion piston(51) is

not over the combustion velocity of the mixed gas. If the engine is early ignited in

the preccess of the compression and it achieves the combustion efficiency maximization as before, and the engine gets large expansion pressure as follows reasons.

First, it makes activated mixed gas which has the same high temperature and compressive pressure rate. Second, it can be ignited during compression.

Source of compression area and combustion area is of the same.

X = connecting lod (I) crank radius (γ) ^» - 4, ^γ = 1, ω = Angular velocity, θ = rotation angle from T. D. C. When compression area has 30° phase less than combustion area and turn to the opposite at the double speed, the value of the moment when (5, 6)'s rotation moment is of the same in the range that θ is from '0' to '30'

rotation moment M = ^s^^θ (γ cosθ + H i - ^si ₂ ^e )

combustion area Ml = ^s"^θ ( cosθ +

SUBSTITUTE SHEET compression are _a _Λ M2 = -2f sin( ^θ-30) \ 1 c _o.s_ (_lθ_n-3_>nϋ)_{. +} + _A 4Tγ 1_Λ - sin² j ⁽g9-30) -^"""]j j

Let's suppose Mi = M₂ and then approximate value of θ which accords with

the formula is 20.2° when combustion crank shaft(6) is 20.2° after exhaust valve(12)

and comperssion crank shaft(5) is 9.8 before exhaust valve(12), the rotation power of

comperssion crank shaft, combustion crank shaft(5, 6) offsets each other.

As we have shown, when moment maximum compression rate is out-put on

the condition that compression piston, combustion piston (50, 51) 's speed is of the

same, the value is piston velosity V = γω (si θ + - Γ- si 2θ) combustion area VI = ω (sinθ + -r- sin2θ) compression area V2 = -2ω ( sin2(θ-30) + -i- sin4(θ-30))

So if Vι=V₂, approximate value of θ = 242°

When combustion crank shaft(6) is 242 after T. D. C. and comperssion crank shaft(5) is 5.8 before T. D. C, Maximum compression rate is measured When the

angle of compression piston(50) is 0°-until the Angle of combustion piston(51) is 30°,

after T. D. C, expected compression rate is conformed but more precisely from 24.2°

expansion process begins. After θ is 30°, combustion piston(51) begins adiabatic

expansion.

In this condition, if the rotating angle of compression piston(50) is regarded appropriate ignition timing is from 9.8° to 5.8°, but it ignities early in appropriate

range in accordance with delay of ignition and combustion speed.

If early ignition happens in the middle of compression, combustion velocity is

accelerated and combustion is fastened If we ignite like before, expansion pressure

of suction valve(ll) gives some pressure to combustion piston(51) and compression

SUBSTITUTE SHEET piston(50) through opened throttle nozzle(43), but as rotating angle is already set.

The difference between inertia and rotating moment makes the balance of power losen and larger rotative power turns comperssion crank shaft(5), injects air into

combustion chamber and then through opened throttle nozzle(43), some makes

conbustion and the other makes work. In jet engine, sprayed gas turns suction and compression turbine and the remains become impulse.

If we compare the former engine having combustion space separately at the

same exhaust quantity and compression rate with the new engine, the former engine cylinder volume = V^ combustion space of the forma- engine = V₂ the former engine combustion pressure = Pi

the new engine cylinder volume = V3, the new engine combustion pressure = P₃

V₃ of the new engine is stroke volume as well as cylinder volume. Vi is the volume which combustion space is added to stroke volume. Therefore, Vi = V₃ + V₂ results in Vι>V₃

Under like this cylinder volume if we bum same calorie, because cylinder volume of new engine is less than the former in VrPι=V₃-P₃=work > 1 results in

Namely, combustion pressure of the new engine is larger than the former.

Because volume V₂ of the combustion space is not related to the matter in the former stroke. In other words, only stroke volume which is the length of movement

of ^'P' form settled cylinder rolume of each moment worek with P-V=W-From this fact that P3-V₃>PrV₃, when exhaust amount, compression rate, and supply calorie

SUBSTITUTE X^'ZX are of the same, new engine do more work than the former. Because the former

engines have the same structure, the process which give work to crank shaft, is of

the same.

So we measure the volume of the work with regard for only P-V volume. There are no difference between former engines, but the process of new engine that gives work to crank shaft Therefore, we must not compare the amount of

new engine's work with that of the former with only regard for P-V area For

example, though much power works on piston when piston and crank shaft are on

the same line, rotation movement is "o". So we must integrate and then compare each moment P-V. We make new engine explosive at the moment when rotation

moment is larger after T. D. C, so from the same work we can get not work but

power gives benefit and promotes the rate of work transmission. When it gets expansion pressure in new engine, gbw coil(46) is exposed to not-completely burnt

gas. Therefore we don't need early ignition but rapid and sudden combustion like

nocking. As for effect, compression cylinder(2) is a kind of area press.

It doesn't suit in hot cylinder which meant of combustion gas remains. And we boost density of inhalation air and generate power having adjustable cam(16) inhale a lot of air.

Each cylinder has each in-or out-gas valve, so we can reduce resistance owing

to large area. Heat loss is small because the time when expansion gas stays in the

cylinder is shorter than before. By air-injection into compression cylinder(2), strong

whirlpool is formed in suction valve(ll), completely mixed gas is made, perfect

combustion is possible by entirely output of combustion gas, and workamount is in creased and smog is reduced. Former engine gains maximal compression near T. D.

SUBSTITUTE SHEET C, so practical work is few and it makes large mechaical condensation and heat loss

by high temparature and compression. But new engine make much useful work and few noise. Reduction of cylinder area which raises pressure of output gas makes it

easy to turn supercharger. Due to large torque, we can reduce the rate of speed and diminish mechanical

damage. Two combustion cylinder egual to former 4 cylinders, and tour combustion

4 cylinder is egual to 8 cylinders.

So weight and volume per generating power is reduced.

BRIEF DESCRIPTION OF DRAWING Table 1 is the constitutive drawing of cylinder block.

A of Table 2 is the combinative drawing of crank shaft

B of Table 2 is the combinative drawing of crank armgcar.

Table 3 is the description of the cylinder head's bottom side.

Table 4 is the constitutive drawing of cylinder head cam.

Table 5 is the external drawing of cam middle plate.

Table 6 is the constitutive drawing of adjustable cam.

Table 7 is the constitutive drawing of hydraulic cylinder.

Table 8 is the equipping drawing of throttle valve block.

Table 9 is the side view of throttle valve bloc's equipment

Table 10 is the A-A cross-section view of the table 8.

Table 11 is the constitutive description of throttle valve bloc's sealed ring and sealbar.

Table 12 is the constitutive drawing of throttle balve block's side seal bar.

Table 13 is the constitutive drawing of plate spring.

SUBSTITUTE SHEET Table 14 is the constitutive drawing of throttle valve switch.

Table 15 is the external drawing of combustion piston consisted of glow coil.

Table 16 is the quipping drawing of small feul injection.

Table 17 is the constitutive drawing of injection pump. Table 19 is the constitutive drawing of small feul plunger.

Table 20 is the constitutive drawing of injection cam shaft.

Table 21 is the constitutive drawing of double radiator.

Table 22 is the description of strokes for the new engine's exhauation,

condensation and explosion. Table 23 is the description of strokes for the new engine's start explosion, ending condensation.

Table 24 is the description of strokes for the new engine's exposion, inhalation and exhaustion.

BEST FOR CARRING OUT THE INVENTION

If we can explain in detail on the basis of the drawings of this invention as

follows ; if there are more than two parts in the drawings serve the same role, the small number attatehes to the large number as in the following example, ex) 51 ; 51-1, 51-2, From now on, this invention calls the new engine. The system of the new engine constitutes and operates as follows.

One cylinder block(l) consists of two rows of combustion cylinderβ) and a row

of compression cylinder(2). Combustion crank shaft(6) which operates combustion

piston(51) and compression piston(50) which operates compression crank shaft(5) are given 2 : 1 in the ratio of gear, and they combine with combustion gear(9) and compression gear(8) at the time when weuse transter gear(lθ) or chain gear, we can

fi UBSTITUTE SHEET reduce the combined space. The length of combustion cylinderβ) is the same as

that of the stroke, length of combustion piston(51), and the length of compression

cylindeτ(2) and that of compression piston(50) is the same.

As the cooling system of compression cylinder(2) is separated from that of

combustion cylinder(3), by means of double radiator(48) each system is cooled double

radiator(48).

In the head of combustion piston(51), the glow coil(46) which receives the heat

from combustion gas and accumulates the heat is situated on the groove of the

head. This gap is made in the wide form on the top to quickly transfer a fire to it.

The height of glow coil (46) is established with the exposure to new mixed gas in

combustion pressure by ignition plug.

The head of compression piston(50) has a form of the curved Suitable in oval

space and makes the dimension effective in cαmpressure.

The suction valve(ll) which induces the first fresh air is placed near compression cylinder(2) and the small fuel injection nozzle(15) which dissipates a

little fuel is equipped on suction pipe(52) exhaust valve(12), which discharge, combustion gas, is on the combustion cylinderβ) and ignition(13) and fuel

injector(14) is also equipped on it

In order to ignite easily in the irtue, igniter(13) is placed under cylinder

head(24) and fuel injector(14) is equipped in the exit of throttle tube(40) and sprays

much through many holes.

On the top of cylinder head(24), suction cam shaft(19) and exhaust cam shaft(22) each is divided, suction cam shaft(19) which moves suction valve(ll) is

SUBSTITUTE SHEET made up of a adjustable cam(16) in proportion of the amount of output of oil pump

this gears into compression crank shaft(5) and chain gear(20), exhaust cam shaft(22)

which moves exhaust valve(12) and throttle valve(41) is composed of four exhaust cams(21) and two throttle cams(23), this gears into combustion crank shaft(6).

Adjustable cam(16) which controls the closing time of suction valve(ll) by

means of the rotating speed.

Works on suction cam(19), which is fixed between fixture cam(17) and male

screw spline(26).

Adjustable cam(16) is unified with male spline(29) and it is also divided put together on suction cam shaft(19), an internal part of circumferential gear shaft(27)

has female screw spline(25) and the opposite part has female spline(28), therefore

these are divided and combined on male screw(26) and male spline(24), circumferential gear shaft(27) goes in gear with circumferential spur gearβl), which

is supported on bearing together with rack spur gear(36).

Rack spur gear(36) connects with spool(33) and spool rack(35). Spool(33), which is contained with spring in the hydraulic cylinderβO) that has oil exit(32), is

operated by hydraulic pressure and spring. In the circumference of spool(33), There is oil way(49) whose type is triangle. In the opposite part, There are check valve(34), hydraulic handle(38), oil inlet(37) that take fuel from oil pump. To operate

two suction valve(ll) simultaneously, cam middle plate is located in between cam(16,

17) and suction valve(ll). Cam middle plate open and shut suction valve(ll) up to

cam(16, 17) 's operation. At this time, the one part of cam middle plate(18) will be

fixed by rotation central shaft Throttle valve(41) blocks combustion cylinderβ) and compression cylinderβ). Throttle valve block(39) is located on between combustion

I SUBSTITUTE SHEET cylinderβ) and compression cylinder, is fixed by cylinder head(24) in the upper part

and cylinder block(39) in the lower part

Throttle nozzle(43) which inject compression air is made in the throttle

valve(41). In the both side of throttle valve black(39), throttie tube(39) is made and be

placed above each cylinder(2, 3).

The lower part of throttle tube(40) that connects each cylinderβ, 3) is plane

and the upper part which connects cylinder head(24) is round and is slanted in the

direction of both side. Valve gear(42) which rotates throttle valve(41), connects with valve rack(45). Valve sleeve(44) and valve rack(45) that is inserted in spring, connect throttel cam(23). Valve rack(45) is taken going and coming, straight move and rotates repeatedly by 90°. In order to prevent leakage of combustible gas, seal

ring (64) that has same activity with piston ring and seal bar(65) is connected in

above, below, side part of inside of throttle valve block(39). Seal ring(64) and seal

bar(65) is connected in outside of throttle valve(41). The connected side of seal ring(64) and seal bar(65) is cancave type in the direction of width and increase

closed effect with throttle valve(41) which have double connected side with part of seal bar and seal ring. Fuel injection pipe(54) was fixed in the injection pump(55), is connected to fuel injection nozzle(14) and small fuel injection pipe(55) is connected

to small fuel injection nozzle(15).

The timing pulley(56) operates pump cam shaft(57), syncronize with combustion crank shaft(6). In the pump cam shaft(57). There are two big pump cam(58) which

pushes fuel plunger(61) and two small pump cam(59) which pushes small fuel plunger(60). Small pump cam(59) is made in pump cam shaft(57) symmetrically.

SUBSTITUTE SHEET Control rack(63) which syncronizes speed lever(62) controls only fuel

plunger(61).

Small plunger(60) which pumps by constant speed and controls plunger

hander(69) a little which connects plunger gear(68). In the double radiator, separate

plate(47) is made and divides the cooling water in combustion part and comperssion

part INDUSTRIAL APPLICABILITY

If combustion part and compression part are assembled separately, most part of former production line can be used We can have many parameters by means of adjusting the timing of combustion piston(51) and compression piston(50) and changing of the volume of compression cylinderβ). Because new engine burns in the middle of expansion, it is fit to ship, bus and heavy equipment which need more power in middle or low speed If combustion piston(51) explodes nearer T. D. C,

high rotation is possible. If in small fuel injection nozzle, we inject the combustible

fuel, it makes back-fire and engine will be stop.

Because rotation of engine is derived of explosion power of fuel, it is possible

for well-designed airplane to have more 10,000RPM. It owes to shortened combustion speed of well-mixed fuel. In this respect, it is not doubtful that this invention works.

SUBSTITUTE SHEET

Claims

WHAT IS CLA MED IS :

1. Cylinder block(l) consists of two combustion cylinderβ⁾ and a compression

cylinderβ). Combustion crank shaft(6) and comperssion crank shaft(5) are connected

by combustion gear(9) and compression gear(8) whose gear rate is 21. Combustion piston(51)'s grove is equiped with glow coil(46). Cylinder head⁽24) has fixture cam(17) on the side of compression cylinderβ), and exhaust valve(12), igniter(13),

fuel injection (14) on the side of combustion cylinderβ). Small fuel injection(15) is

equiped with suction pipe(52). Throttle valve block(39) is between combustion

cylinderβ) and compression cylinderβ), upside of it is fixed by cylinder head(24), and downside is fixed by cylinder block(l). throttle valve block(39) consists of seal ring(64), seal bar(65) and plate spring(66). Among them, there are throttle valve(41)

which has throttie nozzle(43). Throttle tube(40) is formed in throttle valve block(39).

Throttle valve(41) valve gear(42) in the same pivot gear into valve rack(45), and

valve sleeve(44) and valve rack(45) inserted in the spring are connected with throttel

cam(23). Exhaust ca βl) and throttel cam(23) are formed in exhaust cam shaft(22). fixture cam(17) and adjustable cam(16) are formed in suction cam shaft(19), and cam middle platedδ) is formed between adjustable cam, fixture cam(16, 17) and suction valve(ll). Fuel plunger(61), small fule plunger(60), plunger^" hander(69) and pump cam shaft(57) are formed in injection pump(53). Big pump

cam(58) and small pump cam(59) are formed in pump cam shaft(57). Plunger

hander(69) connected with ratch(67) gears into plunger gear(68). From this construction, it is two stroke high-power engine whose characteristics is to

combuste after T. D. C.

2. adjustable cam(16) is fixed between male screw spline⁽26) and adjustable

SUBSTITUTE SHEET cam(16⁾, lies on suction cam shaft(19), and connected with male spline(29). female screw spline(25) and female spline(28) are formed in circumferential gear shaft(27)

and they are on male screw and male screw spline, male spline(26, 29).

Circυuπferential gear shaft(27) is connected with circumferential spur gearβl), rack spur gear(36) and spool rack(35). Hydraulic cylinderβO) consists of spool(33), oil exit(32), spring, check valve(34), hydraulic handle(38), and oil inlet(37). Oil way(49) is formed in spool(33).

3. Double radiator(48) has separate plate(47).

4. In No. 1, the length of combustion cylinderβ) is equal to the stroke length of combustion piston(51).

5. In No. 1, stroke of combustion cylinderβ) is longer than that of combustion piston(51).

6. In No. 1, the diameter of compression piston(50) and combustion piston(51) is the same.

7. In No. 1, the diameter of compression piston(50) is shorter than the that of combustion piston(51).

8. In No. 1, the upside of groove having glow coil(46) is wider than downside.

9. In No. 1, glow coil(46) is exposed to new mixed gas in combustion compession.

10. In No. 1, two igniter(13) are at the right angle to glow coil(46).

11. In No. 1, two igniter(13) are opposite to glow coil(46).

12. In No. 1, compression cylinderβ) and combustion cylinderβ) is made sperately.

13. In No. 1, compression piston(50) is made in the shape of concave, in accord

SUBSTITUTE SHEET 17

with convex of cylinder head(24) on the side of throttle tube(40⁾.

14. In No. 1, trans gear(lθ) connects combustion crank shaft(6⁾ and compression

crank shaft(5).

15. In No. 1, chain gear connects combustion crank shaft(6) with comperssion

crank shaft(5).

16. In No. 1, fixture cam(17) is adjusted to low-speed rotation.

17. In No. 1, the fuel pump volume of small fule plunger(60) is constant

18. In No. 1, the fuel pump volume of small fule plunger(60) is out of

combustible range.

19. In No. 1, in the combustible range, the volume is the pump volume of the

plunger(61) minus small fuel plunger(60).

20. In No. 1, small fuel plunger(60) pumps twice and fuel plunger(61) pumps

once in accordance with a rotation of combustion crank shaft(6).

21. In No. 1, pump volume of small fuel plunger(60) is precisedly controled.

22. In No. 1, one side of seal ring, seal bar(64, 65) is formed in the shape of

concave.

23. In No. 1, plunger gear plunger gear(68) is wormgear.

SUBSTITUTE SHEET