CN1160510C

CN1160510C - Flow guide valve and traction mechanism thereof

Info

Publication number: CN1160510C
Application number: CNB97100238XA
Authority: CN
Inventors: 高天和; 彭毓莹; 郑家俊; 陈伟霖; 刘达全
Original assignee: Industrial Technology Research Institute ITRI
Current assignee: Industrial Technology Research Institute ITRI
Priority date: 1997-01-10
Filing date: 1997-01-10
Publication date: 2004-08-04
Anticipated expiration: 2017-01-10
Also published as: CN1187578A

Abstract

A diversion valve and its traction mechanism, characterized by that, apply to produce the intake mechanism of the engine that the air admission rolls or whirls the airstream, there is a gap in the lower reaches of air inlet on the cylinder cover of the engine and close to the intake valve, there is a traction mechanism that pushes and pulls the diversion valve in order to control the opening of the diversion valve in the gap, in order to control the opening that the air inlet shields.

Description

A kind of guide valve and haulage gear thereof

Technical field

The invention relates to engine air admittance mechanism, be meant a kind of guide valve and haulage gear thereof especially.

Background technique

The requirement of the combustion efficiency of four-journey engine and low contaminativity improves constantly, and therefore multiple air fuel ratio at engine (A/F Ratio) and other aspect research modification methods are arranged; Yet,, also be the key factor of engine efficiency for charge air flow speed aspect; Aspect charge air flow speed, according to many experiment confirms, when charge air flow speed is quickened, can cause forming in the cylinder powerful flow-disturbing, make roll air-flow (Tumble) or swirl rate (Swirl Ratio) bigger, its result all makes combustion variation reduce, and has splendid firing effect.

General four-journey engine is for obtaining higher horsepower, to design along the valve rod direction near the air flue of air intake valve, so, when high load, its accelerator open degree maximum, air inflow makes airspeed bigger more, and can get the highest intake efficiency and obtain maximum horsepower output, but when middle-low load, air inflow is less to make that the air-flow that passes through air intake valve is too little, so, enter to make behind the cylinder and be the slow dead state of air-flow, can't carry out thin oil burning, influence oil gas mixing and burning effect, cause fuel consumption big and discharge amount of exhaust gas is many.

Therefore, HONDA VETC engine just utilizes the valve system design, control the aperture of air intake valve, in engine, during low-load, air intake valve is less aperture, make by the air intake valve airspeed and speed, with in improving, the combustion efficiency of low-load engine, and when high load, be the aperture of keeping former air intake valve, so the effect of high torsion of low speed and high speed high pass filter is arranged, but this kind valve system complexity is the shortcoming of this system.

Summary of the invention

Main purpose of the present invention is to provide a kind of guide valve and haulage gear thereof, and it is simple and reliable for structure and with low cost, and economic benefit is worth high.

Another object of the present invention is to provide a kind of sealed against leakage effect good, and can take into account the smooth and easy of mechanism's start.

Edge is to reach above-mentioned purpose, a kind of guide valve of the present invention and haulage gear thereof, it is characterized in that, be be applied to produce air inlet is rolled or the engine air admittance mechanism of eddy airstream in, in intake duct downstream that engine cylinder covers and approach the air intake valve place and be provided with a breach, be provided with a haulage gear push-and-pull guide valve in this breach to control this guide valve aperture, to control the aperture that this intake duct covers.

Wherein this guide valve body body is provided with multiple tooth body, and this haulage gear then has a roller, and it is provided with denticle all over the body to mesh this guide valve denticle, makes guide valve do straight reciprocating motion.

Wherein this haulage gear is to be an oil hydraulic cylinder or solenoid valve, is with direct drawing or side drawing mode, makes this guide valve do straight reciprocating motion.

Wherein haulage gear, is meshed with a tool external threaded of haulage gear to the sleeve that is projected with a tool internal thread at guide valve one end, does straight reciprocating motion in the rotary screw mode with the transmission guide valve.

Wherein haulage gear stretches out at guide valve one end the guide rod of the multiple tooth shape of a tool is set, and is meshed with a roller with profile of tooth, to do straight reciprocating motion.

Wherein this haulage gear is to be a rotating lind rod, is with this guide valve moving linearly of rotating manner interlock.

Wherein this haulage gear is to be a cable wire, is to do straight reciprocating motion with this guide valve of pulling mode interlock.

Wherein this haulage gear is to be an extension spring, is to do straight reciprocating motion with this guide valve of pulling mode interlock.

Description of drawings

For making purpose of the present invention, feature and effect are further understood, after enumerating following examples and conjunction with figs. now and being described in more detail in, wherein:

Fig. 1 is the setting position sectional view of the present invention's first preferred embodiment, in order to disclose the link action schematic representation of this guide valve of engine this haulage gear when the full load.

Fig. 2 is same Fig. 1, in order to disclose engine in, during low-load, this haulage gear action schematic representation that this guide valve blocks that links.

Fig. 3 is the sectional top plan view of Fig. 2.

Fig. 4 is the sectional top plan view of the setting position of the present invention's second preferred embodiment.

Fig. 5 is the sectional top plan view of the setting position of the present invention's the 3rd preferred embodiment.

Fig. 6 is the sectional top plan view of the setting position of the present invention's the 4th preferred embodiment.

Fig. 7 A is the sectional top plan view of the setting position of the present invention's the 5th preferred embodiment.

Fig. 7 B is the B-B side view of Fig. 7 A.

Fig. 8 is the sectional top plan view of the setting position of the present invention's the 6th preferred embodiment.

Fig. 9 is the sectional top plan view of the setting position of the present invention's the 7th preferred embodiment.

Figure 10 is the sectional top plan view of the setting position of the present invention's the 8th preferred embodiment.

Embodiment

At first see also Fig. 1 to shown in Figure 3, the present invention is provided with a breach 10 in engine cylinder lid A near air intake valve B place, and establish a guide valve 20 in these breach 10 places, this guide valve 20 is linked with a haulage gear 30 again, and this haulage gear 30 is suitably to control this haulage gear 30 with stepper motor or electromagnetic valve or with the accelerator open degree interlock or according to the control unit 40 of air inlet vacuum by automatically controlled; Wherein this guide valve 20 is that correspondence is slidedly arranged in the breach 10 of this cylinder head A, and its edge is provided with most denticles 21; This haulage gear 30 has a housing 31 and generally is a hollow casing, its all sides two ends extend be provided with one with the slideway 32 of these above-mentioned breach 10 relative connections, in order to this guide valve 20 of bearing, its built-in brake wheel 33 that is provided with, these 33 weeks of roller hold and are provided with denticle 331, in order to agree with each denticle 21 of this guide valve 20, this two ends, roller 33 center extension is provided with a main shaft 34 again, these main shaft 34 1 ends be bearing in this housing 31 and excellent support and by a self-lubricating bearing 35 smooth and easy running, the other end then is stretched on this housing 31 outer and these control unit 40 bindings, and this main shaft 34 then seals 36 fits with one with housing 31 joints, make in this housing 31 and be splendid airtight conditions, prevent that air from passing housing 31 places by above-mentioned main shaft 34 and spilling, not only tightness is good and can take into account the smoothness of mechanism's start, with the high valve linkage of a practicability;

Combination by above-mentioned member, this control unit 40 is with stepper motor or electromagnetic valve or accelerator open degree interlock or suitably controls this main shaft 34 according to air inlet and rotate, make this roller 33 make suitably rotation amplitude according to air inlet flow rate or accelerator open degree, and then these guide valve 20 denticles 21 that utilize these roller 33 denticles 331 to be meshed, make this guide valve 20 do straight ahead or moving of retreating along this slideway 32 in this breach 10, so that this air intake valve B is made suitable masking amount, its structure is not only simple and reliable and with low cost.

See also shown in Figure 4 again, be to be the present invention's second preferred embodiment, what they were different with first preferred embodiment is, this guide valve 20 is outward extended with the sleeve 22 of a tool internal thread, this haulage gear 30 is provided with the externally threaded screw rod 37 of a tool, be to be meshed with this sleeve 22, this screw rod 37 outwards is provided with a main shaft 34 again linking this control unit 40, and this main shaft 34 and these housing 31 joints then be provided with one to 36 to make airtight good outer cover; By control unit 40 interlocks this sleeve 37 is rotated, and then this guide valve 30 of transmission is done straight reciprocating motion.

See also shown in Figure 5 again, be to be the present invention's the 3rd preferred embodiment, this guide valve 20 is extended with the guide rod 22 of a plurality of profiles of tooth 321 of a tool, and this haulage gear 30 is provided with one to have the roller 33 of denticle 331 and be meshed with these guide valve 20 guide rods 22, to do the linear reciprocation transmission.

See also Fig. 6, shown in Figure 7 again, be to be the present invention's fourth, fifth preferred embodiment, this guide valve 20 is extended with a guide rod 22, the one end is fixed on the solenoid valve or oil hydraulic cylinder 38 of a haulage gear 30, and this control unit of mat 40 drives these solenoid valves or oil hydraulic cylinder 38 and does the linear reciprocation transmission with direct drawing mode and side drawing mode.

Seeing also shown in Figure 8ly again, is to be the present invention's the 6th preferred embodiment; This guide valve 20 is provided with a guide rod 22, and this guide rod 22 is provided with a protruded stigma 23, can do the reciprocal transmission of a straight line by the rotating lind rod 39A and the returning spring 39B of this haulage gear 30; Seeing also shown in Figure 9ly again, is to be the present invention's the 7th preferred embodiment, and different is with the 6th preferred embodiment for it, and this rotating lind rod 39A directly makes interlock with these guide valve 20 side guide grooves 24, and other is coated on this rotating lind rod 39A outside by 36 in sealing device; Seeing also shown in Figure 10ly again, is to be the present invention's the 8th preferred embodiment, also can utilize these control unit 40 drive leaders 42 to rotate and makes chain, cable wire or the extension spring 41 of haulage gear 30 and a returning spring 39B do the straight line transmission.

In other words, haulage gear of the present invention mainly is with this guide valve moving linearly; The structural design of its push-pull fashion can be done the different designs of considering according to design space, design cost or the like.

Claims

1. A diversion valve and its traction mechanism, characterized in that it is applied to an engine intake mechanism that generates intake tumbling or vortex airflow, downstream of the intake passage on the engine cylinder head and close to the intake valve A gap is provided at the gap, and a traction mechanism is provided in the gap to push and pull the diversion valve to control the opening of the diversion valve, so as to control the opening of the air inlet shield.

2. A diversion valve and its traction mechanism according to claim 1, wherein the body of the diversion valve is provided with multiple teeth, and the traction mechanism has a roller, and its body is provided with teeth The tooth body of the diversion valve is engaged to make the diversion valve perform linear reciprocating motion.

3. A diversion valve and its traction mechanism according to claim 1, wherein the traction mechanism is a hydraulic cylinder or a solenoid valve, and the traction mechanism is directly or sideways pulled to make the The diversion valve makes linear reciprocating motion.

4. A diversion valve and its traction mechanism according to claim 1, wherein the traction mechanism has a sleeve with an internal thread extending outward from one end of the diversion valve, and an external thread of the traction mechanism The screws are engaged with each other, and the diversion valve is driven to make a linear reciprocating motion by rotating the screw.

5. A diversion valve and its traction mechanism according to claim 1, wherein the traction mechanism is provided with a multi-toothed guide rod extending outward from one end of the diversion valve, and a toothed guide rod The rollers are meshed for linear reciprocating motion.

6. The diversion valve and its traction mechanism according to claim 1, wherein the traction mechanism is a rotating connecting rod, which drives the diversion valve to perform linear motion in a rotational manner.

7. A flow diversion valve and its traction mechanism according to claim 1, wherein the traction mechanism is a steel cable, which drives the flow diversion valve in a linear reciprocating motion in a pulling manner.

8. The diversion valve and its traction mechanism according to claim 1, wherein the traction mechanism is a tension spring, which drives the diversion valve in a linear reciprocating motion in a pulling manner.