CN101319622B

CN101319622B - Valve actuating mechanism for internal-combustion engine capable of automatic phase conversion

Info

Publication number: CN101319622B
Application number: CN2008100708378A
Authority: CN
Inventors: 詹炳岳
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-03-27
Filing date: 2008-03-27
Publication date: 2011-08-24
Anticipated expiration: 2028-03-27
Also published as: CN101319622A

Abstract

The invention relates to an automatically phase changing internal combustion engine which essentially comprising a combined rotary table, an air vent and a phase changing device. The combined rotary table comprises a main rotary table, an air inlet coil and an exhaust coil. The air vent comprises an air inlet hole and an exhaust hole formed by the upper end faces of a cylinder. The main rotary table is provided with a driving gear, a driven gear, a toggle gear and a sliding ball. A driving gear shaft is provided with a return spring and an expansion link. The air inlet groove of the air inlet coil is provided with an air inlet movable block; the exhaust groove of the exhaust coil is provided with an exhaust movable block. When an internal combustion engine works, the combined rotary table rotates above the air vent of the cylinder; when the rotating speed is changed, the sliding ball pushes the expansion link to rotate the driving gear under the mutual effect of centrifugal force and the return spring, so that the relative positions of the air inlet coil and the exhaust coil are changed, the air inlet movable block and the exhaust movable block are displaced, so as to increase or decrease the air inlet and the exhaust phases, and realize the effect that the valve distribution phase is automatically changed as the rotating speed.

Description

A kind of covert I. C engine distribution mechanism automatically

Technical field

The present invention relates to the piston reciprocating internal combustion engine air distributing device, specifically be meant a kind of I. C engine distribution mechanism that can change port timing automatically with the internal-combustion engine rotational speed variation.

Background technique

The port timing of internal-combustion engine is relevant with factors such as its structural type, rotating speeds, and same internal-combustion engine should have different port timings under different rotating speeds, and rotating speed is higher, also should heal greatly in the advance angle and the angle that lags.At present, the distribution device of known internal-combustion engine is made up of valve group and valve transmission group two-part, and the structural type of its changeable air valve mainly contains the variable valve timing system of valve timing and valve lift control mechanism and adjustment camshaft degree.These two kinds of variable valve actuating mechanisms basically all by ECU be core with control under control valve, controller and sensor three parts form, be one-sided or local to the change of port timing.Wherein valve timing and valve lift control mechanism have only low speed operating mode and high-speed working condition two states, and the variable valve timing system that adjusts camshaft degree can only change valve timing and but can not change port timing.Therefore, these two kinds of variable gas distribution forms can't reach same internal-combustion engine should have different port timings under different rotating speeds, and rotating speed is higher, the big designing requirement of also should healing of the advance angle and the angle that lags, and simultaneously, both structures are more complicated all also.

Summary of the invention

The invention provides a kind of covert I. C engine distribution mechanism automatically, its main purpose is to overcome above-mentioned existing valve timing and valve lift control mechanism has only low speed operating mode and high-speed working condition two states, and the variable valve timing system that adjusts camshaft degree can only change valve timing and but can not change port timing, simultaneously also defective such as more complicated all of both structures.

The present invention adopts following technological scheme: a kind of covert I. C engine distribution mechanism automatically comprises combination dials device, deviator and air vent device; Air vent device comprises and is positioned at cylinder body upper-end surface inlet hole corresponding with each cylinder and exhaust port, and each inlet hole and each exhaust port are arranged in respectively on the circumference, and each inlet hole and an exhaust port correspondence radially distribute from the inside to the outside; The combination dials device comprises a main turntable, an air inlet coil, an exhaust coil, this main turntable is arranged at the air vent device top rotationally, this air inlet coil is assemblied in the main turntable lower end surface rotationally, this exhaust coil is set in air inlet coil periphery rotationally, main turntable is provided with gas-entered passageway and exhaust passage, air inlet coil, exhaust coil are respectively equipped with air inlet duct, the air vent that communicates with described gas-entered passageway, exhaust passage circular arc and corresponding, and this air inlet duct and air vent are communicated with in turn with each inlet hole, the exhaust port of air vent device; Deviator comprises that one is arranged at driving gear, the flexible rod that can be connected in along the sliding ball, that this main turntable radially slides between the two on the main turntable rotationally, in the described air inlet coil periphery, exhaust coil all corresponding positions be provided with can with the cingulum of this driving gear engagement; Comprise that also rotating shaft is connected in the driven gear of main turntable, can slides with the air inlet movable block and the gear that drives its slip that change air inlet duct length, can slides with the exhaust events piece of change air vent length and drive the gear of its slip in described air vent in described air inlet duct, the gear that above-mentioned driving air inlet movable block, exhaust events piece slide all with described driven gear engagement, and described air inlet coil periphery, the interior all corresponding positions of exhaust coil are provided with the cingulum that can mesh with this driven gear.

Aforementioned a kind of covert I. C engine distribution mechanism automatically, each inlet hole of its air vent device and the corresponding common circle of forming of an exhaust port separate by a circular arc isolating bar between the two.

Aforementioned a kind of covert I. C engine distribution mechanism automatically, the sector of the sector of its air inlet duct correspondence and air vent correspondence is overlapped, the center of described driving gear, the center of driven gear lay respectively at the center line and the described air inlet coil outer periphery of this lap, promptly on two of exhaust coil inner circumference edge intersection points.

Further, described air inlet coil outer periphery, exhaust coil inner circumference edge are respectively equipped with an arc notch corresponding to the position of this driving gear, and described cingulum with the driving gear engagement lays respectively in this two arc notch; Described air inlet coil outer periphery, exhaust coil inner circumference edge also are respectively equipped with an arc notch corresponding to the position of this driven gear, and described cingulum with the driven gear engagement lays respectively in this two arc notch.

Aforementioned a kind of covert I. C engine distribution mechanism automatically, the end that its air inlet duct, air vent overlap with inlet hole, exhaust port with elder generation is a front end, the end that the back overlaps with inlet hole, exhaust port is the rear end, described air inlet movable block is positioned at the front end of described air inlet duct, and described exhaust events piece is positioned at the rear end of described air vent.

Aforementioned a kind of covert I. C engine distribution mechanism automatically, being provided with of its driving gear makes the return spring of described sliding ball to the main turntable central slide.

Aforementioned a kind of covert I. C engine distribution mechanism automatically, its gear that drives the air inlet movable block is provided with a driving lever in eccentric position, and described air inlet movable block is provided with an allocating slot that cooperates with this driving lever; The gear of described driving exhaust events piece also is provided with a driving lever in eccentric position, also is provided with an allocating slot that cooperates with this driving lever on the described exhaust events piece.

Aforementioned a kind of covert I. C engine distribution mechanism automatically, the radius ratio of its driving gear and driven gear is 2: 1, the gear that drives the air inlet movable block is greater than the gear that drives the exhaust events piece.

By top description to structure of the present invention as can be known, compare with prior art, the present invention has following advantage: during internal combustion engine, central shaft drives the main turntable rotation, main turntable drives whole combination dials devices such as air inlet coil and exhaust coil and rotates on the cylinder air vent device by driving gear, when rotation speed change, sliding ball promotes flexible rod and rotates driving gear under the interaction of centrifugal force and return spring, the air inlet coil position relative with the exhaust coil changed, and make air inlet movable block and exhaust events piece produce displacement, realize air inlet, the exhaust phase place increases or reduces, reach same internal-combustion engine different port timings is arranged under different rotating speeds, rotating speed is higher, the advance angle and the angle that the lags big linear change that also heals, the effect of the full-time high-efficiency operation of internal-combustion engine.

Description of drawings

When supposing that cylinder block of the present invention is overlooked, the cylinder of arranging by 0,3,6,9 positions of clock face is respectively I number, II number, III number, IV cylinder.

Fig. 1 is I, III cylinder axis line sectional arrangement drawing (I cylinder, III cylinder inlet and outlet hole are all closed);

Fig. 2 is II, IV cylinder axis line sectional arrangement drawing (II cylinder intake hole, IV cylinder vent are opened);

Fig. 3 is a cylinder block upper-end surface schematic representation;

Fig. 4 initially concerns schematic representation between sliding ball position and the phase place;

Fig. 4-the 1st, the ultimate schematic representation that concerns between sliding ball position and the phase place;

Fig. 5 is an A place partial enlarged drawing among Fig. 4.

Fig. 5-the 1st, B place partial enlarged drawing among Fig. 4-1

The pairing technical characteristics of each label is respectively among the figure: plane bearing on 1,2 cylinder head, 3 main turntables, 4 central shafts, 5 drive the rotating shaft of the gear of exhaust events piece, the rotating shaft of 6 driven gears, 7 drive the rotating shaft of the gear of air inlet movable block, 8 drive the gear of exhaust events piece, 9 driven gears, 10 drive the gear of air inlet movable block, driving lever on the gear of 11 driving air inlet movable blocks, the driven cingulum of 12 air inlet coils, 13 combination seal cloth rings, 14 exhaust events pieces, the driven cingulum of 15 exhaust coils, driving lever on the gear of 16 driving exhaust events pieces, 17 air inlet movable blocks, 18 chutes, the rotating shaft of 19 driving gears, 20 flexible rods, 21 sliding balls, 22 return springs, 23 driving gears, the active cingulum of 24 exhaust coils, 25 fastening screws, 26 exhaust coils, 27 outer oil rings, 28 cylinder bodies, the active cingulum of 29 air inlet coils, 30 isolating bars, 31 air inlet coils, oil ring in 32,33 lower plane bearings, 34 cylinder head suction ports, 35 main turntable suction ports, 36 main turntable intake ducts, 37 air inlet coil air inlet ducts, 38 cylinders, 39 cylinder head relief openings, 40 ring air outlet flues, the exhaust passage of 41 main turntables, 42 exhaust coil air vents, 43 cylinder vents, 44 cylinder intake holes, 45 cylinder upper-end surfaces, 46 install the groove of lower plane bearing, the cylinder body lumen of 47 mounting center axles 4, edge behind 49 air inlet ducts, 51 air vent forward positions, 52 exhaust events piece forward positions, 53 exhaust events piece allocating slots, edge behind the 54 air inlet movable blocks, 55 air inlet movable block allocating slots, the protuberance of 56 main turntable lower ends, the 57 air inlet coil outer periphery arc notch corresponding with driving gear, the 58 exhaust coil inner circumference edges arc notch corresponding with driving gear, the 59 air inlet coil outer periphery arc notch corresponding, the 60 exhaust coil inner circumference edges arc notch corresponding with driven gear with driven gear.

Embodiment

The specific embodiment of the present invention is described with reference to the accompanying drawings.

A kind of covert I. C engine distribution mechanism automatically comprises combination dials device, deviator and air vent device.Referring to figs. 1 through Fig. 3, this air vent device comprises and is positioned at cylinder body 28 upper-end surfaces and each cylinder 38 corresponding inlet hole 44 and exhaust port 43, each inlet hole 44 and each exhaust port 43 are arranged in respectively on the circumference, and each inlet hole 44 and an exhaust port 43 correspondences radially distribute from the inside to the outside.Each inlet hole 44 and a corresponding exhaust port 43 common circles of forming separate by a circular arc isolating bar 30 between the two.

See figures.1.and.2, the combination dials device comprises a main turntable 3, an air inlet coil 31, an exhaust coil 26.This main turntable 3 is assemblied in the air vent device top rotationally by the central shaft in the cylinder body lumen 47 4, and this central shaft 4 can drive this main turntable 3 and rotate.

Central position, main turntable 3 lower end surface is provided with a protuberance 56, described air inlet coil 31 is assemblied in this protuberance 56 peripheries rotationally, this exhaust coil 26 is set in this air inlet coil 31 peripheries rotationally, and this air inlet coil 31, exhaust coil 26 and this protuberance 56 lower end surfaces are concordant.Main turntable 3 is provided with gas-entered passageway 36 and exhaust passage 41, simultaneously with reference to Fig. 4, air inlet coil 31, exhaust coil 26 are respectively equipped with air inlet duct 37, the air vent 42 that communicates with described gas-entered passageway 36, exhaust passage 41 circular arc and corresponding, when air inlet coil 31, when exhaust coil 26 rotates, this air inlet duct 37 and air vent 42 are communicated with in turn with each inlet hole 44, the exhaust port 43 of air vent device, with air inlet, the exhaust process that realizes each cylinder 38.

With reference to Fig. 1, Fig. 4 and Fig. 4-1, deviator comprises that its rotating shaft 19 is arranged at driving gear 23, the flexible rod 20 that can be connected in along the sliding ball 21, that this main turntable 3 radially slides between the two on the main turntable 3 rotationally, main turntable 3 is provided with for this cunning ball 21 in the radial groove 18 that wherein slides, driving gear 23 is fixedlyed connected with its central shaft 19, can not relatively rotate between the two, also fixedly connected between flexible rod 20 and this rotating shaft 19, i.e. the swing of flexible rod 20 can drive driving gear 23 and rotate.In air inlet coil 31 peripheries, exhaust coil 26 all corresponding positions be provided with can with the

active cingulum

29,24 of these driving gear 23 engagements.Simultaneously with reference to Fig. 5, Fig. 5-1, this deviator comprises that also its rotating shaft 6 is connected in the driven gear 9 of main turntable 3, can in described air inlet duct 37, slide with air inlet movable block 17 that changes air inlet duct 37 length and the gear 8 that drives its slip, can in described air vent 42, slide with exhaust events piece 14 that changes air vent 42 length and the gear 10 that drives its slip, above-mentioned driving air inlet movable block 17, the gear 8 that exhaust events piece 14 slides, 10 all mesh with described driven gear 9, and described air inlet coil 31 peripheries, in the exhaust coil 26 all corresponding positions be provided with can with the cingulum 15 of these driven gear 9 engagements, 12.The rotating

shaft

5,7 of said

gear

8,10 all is located on the main turntable 3.

With reference to Fig. 4, Fig. 4-1, the sector of the sector of air inlet duct 37 correspondences and air vent 42 correspondences is overlapped, the center of the center of described driving gear 23, driven gear 9 lays respectively at the center line and described air inlet coil 31 outer periphery of this lap, be on two intersection points of exhaust coil 26 inner circumference edges, and driven gear 9 is positioned at an end of this lap.Air inlet coil 31 outer periphery, exhaust coil 26 inner circumference edges are respectively equipped with an

arc notch

57,58 corresponding to the position of this driving gear 23, and described

cingulum

29,24 with driving gear 23 engagements lays respectively in this two arc notch 57,58.Simultaneously with reference to Fig. 5, Fig. 5-1, air inlet coil 31 outer periphery, exhaust coil 26 inner circumference edges also are respectively equipped with an

arc notch

59,60 corresponding to the position of this driven gear 9, and described

cingulum

15,12 with driven gear 9 engagements lays respectively in this two

arc notch

59,60.

With reference to Fig. 4, Fig. 4-1, Fig. 5 and Fig. 5-1, if air inlet duct 37, air vent 42 are front end with the end that elder generation overlaps with inlet hole 44, exhaust port 43, the end that the back overlaps with inlet hole 44, exhaust port 43 is the rear end, then air inlet movable block 17 is positioned at the front end of described air inlet duct 37, and described exhaust events piece 14 is positioned at the rear end of described air vent 42.

With reference to Fig. 1, the rotating shaft 19 of driving gear 23 is provided with and makes the return spring 22 of described sliding ball 21 to main turntable 3 central slide, when centrifugal force is big, the pulling force that sliding ball 21 overcomes this return spring 22 slides to the direction away from the center of circle, when centrifugal force hour, sliding ball 21 slides to center of circle direction under the effect of this return spring 22.

With reference to Fig. 1, Fig. 5 and Fig. 5-1, the gear 8 that drives air inlet movable block 17 is provided with a driving lever 16 in eccentric position, air inlet movable block 17 is provided with an allocating slot 55 that cooperates with this driving lever 16, the gear 10 that drives exhaust events piece 14 also is provided with a driving lever 11 in eccentric position, also is provided with an allocating slot 53 that cooperates with this driving lever 11 on the exhaust events piece 14.When

gear

8,10 rotates,, air inlet movable block 17, exhaust events piece 14 are slided, in air inlet duct 37, air vent 42 with the length of change air inlet duct 37, air vent 42 by cooperating of

driving lever

16,11 and allocating

slot

55,53.

Above-mentioned driving gear 23 is about 2: 1 with the radius ratio of driven gear 9, and the slightly larger in diameter of the gear 8 of driving air inlet movable block 17 is in the gear 10 that drives exhaust events piece 14.

See figures.1.and.2, cylinder body 28 tops are provided with a cylinder head 2, and both are connected cylinder head 2 and cylinder block 28 by fastening screw 25 static seals, and this cylinder head 2 together is sandwiched in the combinations thereof rotary plate device therebetween with cylinder body 28.Main turntable 3 is dynamically connected by last plane bearing 1 and cylinder head 2, and simultaneously with reference to Fig. 3, air inlet coil 31 is installed on by lower plane bearing 33 in the lower plane bearing groove 46 of cylinder body 28 upper-end surfaces 45 and is dynamically connected with cylinder block 28.Be formed centrally cylinder head suction port 34 in the cylinder head 2, the edge forms cylinder head relief opening 39, this suction port 34 communicates with the suction port 35 of the gas-entered passageway 36 of main turntable 3, and this relief opening 39 communicates with the exhaust passage 41 of main turntable 3, forms ring air outlet flue 40 between main turntable 3 end face peripheries and the cylinder head 2.

With reference to Fig. 4, Fig. 4-1, the central shaft 4 in the cylinder body lumen 47 drives main turntable 3 and moves in the direction of the clock.Main turntable 3 driving tooth 29 by driving gear 23 and air inlet coil 31 and the engagement of the active cingulum 24 of exhaust coil 26, driving air inlet coil 31 and exhaust coil 26 rotates simultaneously in the same way (with reference to planet row differential mechanism working principle, driving gear 23 is equivalent to planetary pinion, and air inlet coil 31 and exhaust coil 26 are equivalent to two sun gears).When initial, under the effect of return spring 22, sliding ball 21 is at the most entad end of chute 18, when main turntable 3 turn up certain values, the centrifugal force of sliding ball 21 overcomes return spring 22 elastic force and outwards moves, make flexible rod 20 its rotating shafts 19 of drive and driving gear 23 turn over several angle clockwise, thereby make air inlet coil 31 and the 26 relative dislocation of exhaust coil, just make air inlet coil 31 turn over several angle counterclockwise, exhaust coil 26 turns over several angle clockwise, after 49, move 51 reaches of air vent forward position after making air inlet duct.

With reference to Fig. 5, Fig. 5-1, the relative dislocation of air inlet coil 31 and exhaust coil 26, make driven gear 9 also turn over several angle clockwise, driven gear 9 gear 8 and gear 10 again turns over simultaneously several angle counterclockwise, driving lever 16 is stirred air inlet movable block 17 and is moved clockwise, driving lever 11 is stirred exhaust events piece 14 and is moved counterclockwise, and air inlet movable block 17 backs are along 54 reaches, and the exhaust events piece moves behind 14 forward positions 52.

With reference to Fig. 4-1, Fig. 5-1, air inlet duct 37 back is moved with air inlet movable block 17 backs after 49 and has been enlarged air inlet phase along 54 reaches, moves behind air vent 42 forward positions, 51 reaches and exhaust events piece 14 forward positions 52 to have enlarged the exhaust phase place.The position of driving lever 11 in driving lever 16 and the gear 10 in the radius ratio of the radius ratio by design driving gear 23 and driven gear 9, driven gear 9 and gear 8 and gear 10, the gear 8, can set the ratio that the angle of moving behind 54 reaches and exhaust events piece 14 forward positions 52 air inlet movable block 17 back and air inlet duct 37 afterwards move the angle that moves forward with air vent 42 forward positions 51 after 49, reach the requirement of IC engine gas distribution phase place.Therefore, when main turntable 3 rotating speeds change, also automatic corresponding the changing of port timing.

Above-mentioned only is a specific embodiment of the present invention, but design concept of the present invention is not limited thereto, for example, as long as the quantity of cylinder be four multiple all can, and be not limited only to four cylinders; This design concept also not only the limitation be used on the I. C engine distribution mechanism.Allly utilize this design that the present invention is carried out the change of unsubstantiality, all should belong to the behavior of invading protection domain of the present invention.

Claims

1. an automatic covert I. C engine distribution mechanism is characterized in that: comprise combination dials device, deviator and air vent device;

Air vent device comprises and is positioned at cylinder body upper-end surface inlet hole corresponding with each cylinder and exhaust port, and each inlet hole and each exhaust port are arranged in respectively on the circumference, and each inlet hole and an exhaust port correspondence radially distribute from the inside to the outside;

The combination dials device comprises a main turntable, an air inlet coil, an exhaust coil, this main turntable is arranged at the air vent device top rotationally, this air inlet coil is assemblied in the main turntable lower end surface rotationally, this exhaust coil is set in air inlet coil periphery rotationally, main turntable is provided with gas-entered passageway and exhaust passage, air inlet coil, exhaust coil are respectively equipped with air inlet duct, the air vent that communicates with described gas-entered passageway, exhaust passage circular arc and corresponding, and this air inlet duct and air vent are communicated with in turn with each inlet hole, the exhaust port of air vent device;

Deviator comprises that one is arranged at driving gear, the flexible rod that can be connected in along the sliding ball, that this main turntable radially slides between the two on the main turntable rotationally, in the described air inlet coil periphery, exhaust coil all corresponding positions be provided with can with the cingulum of this driving gear engagement; Comprise that also rotating shaft is connected in the driven gear of main turntable, can slides with the air inlet movable block and the gear that drives its slip that change air inlet duct length, can slides with the exhaust events piece of change air vent length and drive the gear of its slip in described air vent in described air inlet duct, the gear that above-mentioned driving air inlet movable block, exhaust events piece slide all with described driven gear engagement, and described air inlet coil periphery, the interior all corresponding positions of exhaust coil are provided with the cingulum that can mesh with this driven gear.

2. a kind of covert I. C engine distribution mechanism automatically as claimed in claim 1 is characterized in that: each inlet hole of described air vent device and the corresponding common circle of forming of an exhaust port separate by a circular arc isolating bar between the two.

3. a kind of covert I. C engine distribution mechanism automatically as claimed in claim 1, it is characterized in that: the sector of the sector of described air inlet duct correspondence and air vent correspondence is overlapped, the center of described driving gear, the center of driven gear lay respectively at the center line and the described air inlet coil outer periphery of this lap, promptly on two of exhaust coil inner circumference edge intersection points.

4. a kind of covert I. C engine distribution mechanism automatically as claimed in claim 3, it is characterized in that: described air inlet coil outer periphery, exhaust coil inner circumference edge are respectively equipped with an arc notch corresponding to the position of this driving gear, and described cingulum with the driving gear engagement lays respectively in this two arc notch; Described air inlet coil outer periphery, exhaust coil inner circumference edge also are respectively equipped with an arc notch corresponding to the position of this driven gear, and described cingulum with the driven gear engagement lays respectively in this two arc notch.

5. a kind of covert I. C engine distribution mechanism automatically as claimed in claim 1, it is characterized in that: the end that described air inlet duct, air vent overlap with inlet hole, exhaust port with elder generation is a front end, the end that the back overlaps with inlet hole, exhaust port is the rear end, described air inlet movable block is positioned at the front end of described air inlet duct, and described exhaust events piece is positioned at the rear end of described air vent.

6. a kind of covert I. C engine distribution mechanism automatically as claimed in claim 1, it is characterized in that: the axle of described driving gear is provided with and makes the return spring of described sliding ball to the main turntable central slide.

7. a kind of covert I. C engine distribution mechanism automatically as claimed in claim 1, it is characterized in that: the gear of described driving air inlet movable block is provided with a driving lever in eccentric position, and described air inlet movable block is provided with an allocating slot that cooperates with this driving lever; The gear of described driving exhaust events piece also is provided with a driving lever in eccentric position, also is provided with an allocating slot that cooperates with this driving lever on the described exhaust events piece.

8. a kind of covert I. C engine distribution mechanism automatically as claimed in claim 1, it is characterized in that: the radius ratio of described driving gear and driven gear is 2: 1, the gear that drives the air inlet movable block is greater than the gear that drives the exhaust events piece.