CN201436376U - Improved internal combustion engine gas distribution mechanism with automatic phase conversion - Google Patents

Abstract

An improved internal combustion engine gas distribution mechanism with automatic phase conversion comprises a rotating disk group and a motion member. The rotating disk group includes a main rotating disk, an advanced coil and a lag coil which have the same rotation center line. The main rotating disk has an inlet duct and an outlet duct the lower openings of which are ranged on the same circumference on the bottom of the main rotating disk in a strip arc mode. The advanced coil is provided with strip arced air inlet and air outlet which are correspondent. The lag coil has two fan wings which respectively partly cover the air inlet and the air outlet. The motion member comprises a slide gear, a radial slide groove arranged in a main rotating disk, a slide ball slidably arranged in a sliding chute, a return spring which makes the sliding ball return to a proximal end and a swing rod connected between the half axle of the slide gear and the slide ball. The advanced coil and the lag coil are respectively provided with teeth engaged with the slide gear. The utility model makes one internal combustion engine have different gas distribution phases at different rotating speed.

Description

Improved covert I. C engine distribution mechanism automatically

Technical field

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

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.

The application for a patent for invention that the claimant submitted to State Intellectual Property Office on March 27th, 2008 " a kind of covert I. C engine distribution mechanism automatically ", its application number is 200810070837.8, this distribution device can realize that same internal-combustion engine has different port timings under different rotating speeds, rotating speed is higher, the advance angle and the angle big linear change that also heals that lags, the effect of the full-time high-efficiency operation of internal-combustion engine.But this air distribution structure is comparatively complicated, and the claimant has carried out improving design to it.

The model utility content

The utility model provides a kind of improved 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 utility model adopts following technological scheme: improved covert I. C engine distribution mechanism automatically, comprise rotating disk group and actuating member, this rotating disk group comprises the main turntable with same rotary centerline, shift to an earlier date the coil and the coil that lags, this main turntable is provided with intake duct and air outlet flue, intake duct and air outlet flue are respectively equipped with the opening that is positioned at this main turntable bottom surface, these two opening slivering arc shootings are on this same circumference in main turntable bottom surface, the coil and the coil that lags are located on the protruding axle in main turntable bottom rotationally in advance, coil is provided with and the intake duct opening of main turntable bottom surface and the inlet hole and the exhaust port of corresponding arc of air outlet flue opening in advance, and this coil that lags is provided with two can distinguish two fan wings that partly cover this inlet hole that shifts to an earlier date coil and exhaust port; This actuating member comprises handsetting gear that semiaxis and described main turntable be rotatably connected, be located at radial groove in this main turntable, be slidedly arranged on sliding ball in this chute, make this cunning ball to Returnning spring that proximal part resets and be connected in described handsetting gear semiaxis and this cunning ball between telescopic fork; The described coil in advance and the coil that lags are respectively equipped with the tooth with described handsetting gear engagement.

The automatic covert I. C engine distribution mechanism of aforementioned improved, its main turntable is umbrella, and another opening of described intake duct is positioned at the Pan Ding center, and another opening of described air outlet flue is the bar arc and is positioned at dish and leans the position, outer.

The automatic covert I. C engine distribution mechanism of aforementioned improved, by overlooking clockwise direction, the air outlet flue opening of described main turntable bottom surface preceding, intake duct opening after, the fan wing and the back fan wing before two of the described coil that the lags fan wings are divided into, the bottom front of the two fan wings are respectively equipped with one, and to be snug fit at described exhaust port, the inlet hole radially bar in the second half section protruding.

The automatic covert I. C engine distribution mechanism of aforementioned improved, it shifts to an earlier date coil end face inlet hole and place, exhaust port outer camber line form downward circle with interior core pit, the described coil that lags is matched with in this pit, this pit perisporium is provided with the gear teeth in a section, the described coil relevant position that lags is provided with one section outer gear teeth, described handsetting gear and the gear teeth, the engagement of the outer gear teeth in this.

The automatic covert I. C engine distribution mechanism of aforementioned improved, the end face of its main turntable and bottom surface are respectively equipped with the plane bearing with cylinder head, cylinder block assembling.

The automatic covert I. C engine distribution mechanism of aforementioned improved, the outer end of the radial groove of its main turntable are provided with the adjusting bolt that can regulate from the outside, and described Returnning spring is located between the inner end and described sliding ball of this adjusting bolt.

The automatic covert I. C engine distribution mechanism of aforementioned improved, it shifts to an earlier date the coil bottom surface and is embedded with a combined sealing ring, this combined sealing ring is made up of outer shroud, interior ring and five parting beads being connected between this outer shroud, the interior ring, shift to an earlier date the coil bottom surface at this and be separated out exhaust port, intake interface and three airtight interfaces, this exhaust port, intake interface cover described exhaust port, the inlet hole of coil in advance respectively.

By above-mentioned description to the utility model structure as can be known, compare with prior art, the utlity model has following advantage: during internal combustion engine, main turntable drives the coil that lags by handsetting gear and works in coordination with crankshaft rotating with whole rotating disk groups such as shifting to an earlier date coil, when rotation speed change, sliding ball promotes fork and rotates handsetting gear under the interaction of centrifugal force and return spring, handsetting gear makes to lag coil and shift to an earlier date coil and relatively rotates, change shifts to an earlier date the inlet hole of coil and the size in exhaust port ventilation cross section, reach same internal-combustion engine different port timings is arranged under different rotating speeds, rotating speed is higher, the advance angle and the angle big linear change that also heals that lags, the effect of the full-time high-efficiency operation of internal-combustion engine.

Description of drawings

Fig. 1 is an A-A sectional drawing among Fig. 3;

Fig. 2 is a B-B sectional drawing among Fig. 3;

Fig. 3 is the utility model plan view;

Fig. 4 is the utility model worm's eye view;

Fig. 5 is a C-C sectional drawing among Fig. 3;

Fig. 6 is the utility model coil plan view that lags;

Fig. 7 shifts to an earlier date the coil plan view for the utility model;

Fig. 8 shifts to an earlier date the coil worm's eye view for the utility model;

Fig. 9 is the utility model main turntable plan view;

Figure 10 is the utility model main turntable worm's eye view;

Figure 11 does not have in advance the relative position relation figure of intake interface, exhaust port and cylinder scavenge port when lagging the horn shape attitude for the utility model in air inlet, exhaust;

Figure 12 just establishes in advance the relative position relation figure of intake interface, exhaust port and cylinder scavenge port when lagging the horn shape attitude for the utility model in air inlet, exhaust;

Figure 13 is the relative position relation figure of intake interface, exhaust port and the cylinder scavenge port of the utility model under big rotating speed.

Embodiment

Embodiment of the present utility model is described with reference to the accompanying drawings.

Improved covert I. C engine distribution mechanism automatically comprises rotating disk group and actuating member.

See figures.1.and.2, this rotating disk group comprises main turntable 1 with same rotary centerline, the coil 2 and the coil 3 that lags in advance, this main turntable 1 is provided with intake duct 12 and air outlet flue 11, simultaneously with reference to Figure 10, this intake duct 12 and air outlet flue 11 are respectively equipped with the opening 120,110 that is positioned at this main turntable 1 bottom surface, and these two openings, 120,110 slivering arc shootings are on this same circumference in main turntable 1 bottom surface.By overlooking clockwise direction, counter clockwise direction as shown in figure 10 just, the air outlet flue opening 110 of described main turntable 1 bottom surface is preceding, intake duct opening 120 after.This main turntable 1 is umbrella, and simultaneously with reference to Fig. 9, another opening 121 of this intake duct 12 is positioned at the Pan Ding center again, and another opening 111 of this air outlet flue 11 is the bar arc and is positioned at dish and leans the position, outer.

With reference to Fig. 6 and Fig. 7, the center of the coil 2 and the coil 3 that lags is respectively equipped with center hole 20,30 in advance, see figures.1.and.2 simultaneously again, be somebody's turn to do the center hole 20,30 that shifts to an earlier date the coil 2 and the coil 3 that lags and be socketed on rotationally on the protruding axle 10 of main turntable 1 bottom center, thereby coil 2 can be with respect to main turntable 1 rotation with the coil 3 that lags in advance.With reference to Fig. 7, in advance coil 2 end face inlet holes and place, exhaust port outer camber line form the pit 200 of downward circle with interior core, see figures.1.and.2 simultaneously, and this coil 3 that lags is matched with in this pit 200 rotationally.

With reference to Fig. 4 and Fig. 7, coil 2 is provided with and the intake duct opening 120 of main turntable 1 bottom surface and the inlet hole 202 and exhaust port 201 of 110 corresponding arcs of air outlet flue opening in advance.With reference to Fig. 6 and Fig. 7 and Fig. 4, by overlooking clockwise direction, the coil 3 that lags is provided with can distinguish the preceding fan wing 31 and the back fan wing 32 that partly covers this exhaust port that shifts to an earlier date coil 2 201, inlet hole 202 rear ends, and front end of the bottom of the fan wing 31 and the back fan wing 32 is respectively equipped with one and is snug fit at described exhaust port 201, the radially bar of inlet hole in 202 second half sections protruding 311,321 before this.

With reference to Fig. 1, Fig. 2 and Fig. 5, described actuating member comprises handsetting gear 4 that semiaxis 41 and described main turntable 1 be rotatably connected, be located at radial groove 50 in this main turntable 1, be slidedly arranged on sliding ball 81 in this chute 50, make this cunning ball 81 to Returnning spring 82 that proximal part resets and be connected in telescopic fork 84 between described handsetting gear 4 semiaxis 41 and this cunning ball 81.The outer end of the radial groove 50 of main turntable 1 is provided with the adjusting bolt 83 that can regulate from the outside, and described Returnning spring 82 is located between the inner end and described sliding ball 81 of this adjusting bolt 83.With reference to Figure 10 and Fig. 1, Fig. 2, described radial groove 50 is surrounded by the fan-shaped pit 501 that a sector 5 is embedded at main turntable 1 bottom surface.

With reference to Fig. 7, described pit 200 perisporiums at coil 2 centers in advance are provided with the gear teeth 24 in a section, refer again to Fig. 6, described coil 3 relevant positions that lag are provided with a breach 340, this breach 340 is provided with one section outer gear teeth 34, simultaneously with reference to Fig. 1, described handsetting gear 4 with should in the gear teeth 24,34 engagements of the outer gear teeth.

With reference to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, the end face of main turntable 1 and bottom surface have bearing groove 60,70 respectively, are provided with the plane bearing 6,7 with cylinder head, cylinder block assembling in the groove.

With reference to Fig. 8, described coil 2 bottom surfaces in advance are embedded with a combined sealing ring, this combined sealing ring is made up of outer shroud 91, interior ring 92 and five parting beads 93 being connected between this outer shroud 91, the interior ring 92, this combined sealing ring shifts to an earlier date coil 2 bottom surfaces at this and is separated out exhaust port 210, intake interface 220 and three airtight interfaces 230,240,250, and this exhaust port 210, intake interface 220 cover described exhaust port 201, the inlet hole 202 of coil 2 in advance respectively.Coil 2 bottom surfaces oil ring 95, outer oil ring 94 in combined sealing ring inside and outside also is respectively equipped with in advance.

With reference to Fig. 6, Fig. 7 and Figure 10, the fan-shaped pit 501 of main turntable 1 bottom surface, the breach 203 that shifts to an earlier date coil 2 center pits 200 periphery walls, the breach 340 and the empennage 33 of the coil 3 that lags are processed respectively as required, to main turntable 1, in advance coil 2, the coil 3 that lags play center symmetry and dynamic balancing effect, to realize the rotary balance of whole device.

With reference to Figure 11, four scavenge ports of four cylinders in the cylinder block are 0,3,6,9 positions of clock face and arrange, dotted portion represents that this part is capped and seals (down together), does not have between exhaust port 210, intake interface 220 and the scavenge port and connects, and this distribution device does not have in advance at this moment, phase place lags.

With reference to Figure 12, internal combustion (IC) Engine Design must have distribution in advance, phase place lags, therefore, to shift to an earlier date coil 2 and turn over several angle clockwise, form intake advance amount A1 and exhaust advancement amount A2, the coil 3 that will lag turns over several angle counterclockwise, forms the air inlet amount of lagging B1, the exhaust amount of lagging B2, and air inlet, exhaust phase place are just established in the distribution that Here it is has formed internal-combustion engine.During internal combustion engine, main turntable 1 rotates by overlooking clockwise direction, and by handsetting gear 4 and the outer gear teeth 34 of the coil 3 that lags and the interior gear teeth 24 engagements of coil 2 in advance, driving lags coil 3 and shift to an earlier date coil 2 rotates simultaneously in the same way.When initial, sliding ball 81 is at the most entad end of radial groove 50, and IC engine gas distribution is in the working state of just establishing air inlet, exhaust phase place (promptly shown in Figure 12); When main turntable 1 turn up certain value, the centrifugal force of sliding ball 81 overcomes Returnning spring 82 elastic force and outwards moves, and makes fork 84 promote handsetting gear 4 and turns over several angle clockwise.

With reference to Figure 13, handsetting gear 4 turns over several angle clockwise, making in advance, coil 2 turns over several angle clockwise, intake advance amount A1 and exhaust advancement amount A2 enlarge, the coil 3 that lags turns over several angle counterclockwise, the air inlet amount of lagging B1, the exhaust amount of lagging B2 enlarge, and have just enlarged air inlet and exhaust phase place.When main turntable 1 rotating speed reduced, under the effect of Returnning spring 82 elastic force, air inlet and exhaust phase place also can correspondingly be dwindled.By radial position and the radius size of handsetting gear 4 and the elastic force that passes through regulate bolt 83 adjustment Returnning springs 82 of semiaxis 41 on main turntable 1 of design handsetting gear 4, can obtain the variation ratio at rational valve timing and advance angle and the angle that lags.

Above-mentioned only is embodiment of the present utility model, but design concept of the present utility model is not limited thereto, and allly utilizes this design that the utility model is carried out the change of unsubstantiality, all should belong to the behavior of invading the utility model protection domain.

Claims (7)

1. improved covert I. C engine distribution mechanism automatically comprises rotating disk group and actuating member, it is characterized in that:

This rotating disk group comprises the main turntable with same rotary centerline, shift to an earlier date the coil and the coil that lags, this main turntable is provided with intake duct and air outlet flue, intake duct and air outlet flue are respectively equipped with the opening that is positioned at this main turntable bottom surface, these two opening slivering arc shootings are on this same circumference in main turntable bottom surface, the coil and the coil that lags are located on the protruding axle in main turntable bottom rotationally in advance, coil is provided with and the intake duct opening of main turntable bottom surface and the inlet hole and the exhaust port of corresponding arc of air outlet flue opening in advance, and this coil that lags is provided with two can distinguish two fan wings that partly cover this inlet hole that shifts to an earlier date coil and exhaust port;

This actuating member comprises handsetting gear that semiaxis and described main turntable be rotatably connected, be located at radial groove in this main turntable, be slidedly arranged on sliding ball in this chute, make this cunning ball to Returnning spring that proximal part resets and be connected in described handsetting gear semiaxis and this cunning ball between telescopic fork;

The described coil in advance and the coil that lags are respectively equipped with the tooth with described handsetting gear engagement.

2. improved covert I. C engine distribution mechanism automatically as claimed in claim 1, it is characterized in that: described main turntable is umbrella, another opening of described intake duct is circular hole and is positioned at the Pan Ding center, and another opening of described air outlet flue is the bar arc and is positioned at dish and leans the position, outer.

3. improved covert I. C engine distribution mechanism automatically as claimed in claim 1, it is characterized in that: by overlooking clockwise direction, the air outlet flue opening of described main turntable bottom surface preceding, intake duct opening after, the fan wing and the back fan wing before two of the described coil that the lags fan wings are divided into, the bottom front of the two fan wings are respectively equipped with one, and to be snug fit at described exhaust port, the inlet hole radially bar in the second half section protruding.

4. improved covert I. C engine distribution mechanism automatically as claimed in claim 1, it is characterized in that: described coil end face inlet hole in advance and place, exhaust port outer camber line form the pit of downward circle with interior core, the described coil that lags is matched with in this pit, this pit perisporium is provided with the gear teeth in a section, the described coil relevant position that lags is provided with one section outer gear teeth, described handsetting gear and the gear teeth, the engagement of the outer gear teeth in this.

5. improved covert I. C engine distribution mechanism automatically as claimed in claim 1 is characterized in that: the end face of described main turntable and bottom surface are respectively equipped with the plane bearing with cylinder head, cylinder block assembling.

6. improved covert I. C engine distribution mechanism automatically as claimed in claim 1, it is characterized in that: the outer end of the radial groove of described main turntable is provided with the adjusting bolt that can regulate from the outside, and described Returnning spring is located between the inner end and described sliding ball of this adjusting bolt.

7. improved covert I. C engine distribution mechanism automatically as claimed in claim 1, it is characterized in that: described coil bottom surface in advance is embedded with a combined sealing ring, this combined sealing ring is made up of outer shroud, interior ring and five parting beads being connected between this outer shroud, the interior ring, shift to an earlier date the coil bottom surface at this and be separated out exhaust port, intake interface and three airtight interfaces, this exhaust port, intake interface cover described exhaust port, the inlet hole of coil in advance respectively.

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