CN2403899Y

CN2403899Y - Cylinder head air intake or exhaust valve for internal combustion engine

Info

Publication number: CN2403899Y
Application number: CN 99253379
Authority: CN
Inventors: 李洪通
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-11-17
Filing date: 1999-11-17
Publication date: 2000-11-01
Anticipated expiration: 2009-11-17

Abstract

The utility model relates to an air intake valve and a vent valve of a cylinder head of an internal combustion engine. A cylinder head body of the internal combustion engine is provided, air intake valves and a vent valve are arranged in the cylinder head body, the air intake valves are two, the vent valve is one, and the openings of the air intake valves and the vent valve are distributed in triangle in a combustion chamber. The utility model is mainly suitable for a four-stroke internal combustion engine. A single air intake valve is changed to double air intake valves. The utility model has the characteristics of sufficient air input, complete fuel combustion, oil consumption saving, power enhancement, pollution decrease of waste gas, long service life, etc.

Description

Cylinder head of internal combustion engine intake and exhaust valve

The utility model relates to the inlet and outlet valve in the cylinder head of internal combustion engine, mainly is applicable to quartastroke engine.

The work done size of internal-combustion engine (comprising petrol engine and diesel engine) depends primarily on the energy that the cylinder head firing chamber is sent, and after the shape of cylinder head and fuel type are determined, its work doing efficiency will be seen the combustion position of fuel.In each cylinder of existing quartastroke engine an air intake valve is arranged, a drain tap, but the combustion position of fuel and combustion-supporting air inlet have direct relation, because prior art air intake valve only, combustion-supporting air enters deficiency, therefore, fuel combustion is insufficient, and not only power consumption is big, and the thermal efficiency is low, and combustion gas is seriously polluted, and the working life of cylinder is also influenced.

The purpose of this utility model is the defective that overcomes prior art, and a kind of air inflow foot is provided, and makes fuel combustion abundant, thermal efficiency height, and air displacement is big, is applicable to four-stroke cylinder head of internal combustion engine inlet and outlet valve.

The technological scheme of the utility model cylinder head of internal combustion engine intake and exhaust valve is: a cylinder of internal-combustion engine head main body is arranged, in the cylinder head main body, be installed into air valve and drain tap, it is characterized in that described air intake valve is 2, drain tap is 1, in the firing chamber, the inlet and outlet valve port is in triangular distribution.

The utility model is a kind of improvement design of cylinder head of internal combustion engine intake and exhaust valve, mainly be to make existing quartastroke engine list air intake valve into two air intake valves, become " two advance singly to go out ", be that outlet valve still is 1, but sectional area increases, in the firing chamber, " two advance singly to go out " three valve opening distributions triangular in shape help outlet valve and directly increase.Therefore, compared with the prior art this improvement designs, and it is abundant to have a fuel combustion, saves oil consumption, improves power and reaches more than 1/3rd, reduces the exhaust emission pollution of discharging, and prolonged the working life of cylinder.

Fig. 1 is that the utility model cylinder head of internal combustion engine intake and exhaust valve A is to schematic representation;

Fig. 2 is example versions schematic representation of the utility model cylinder head of internal combustion engine intake and exhaust valve;

Fig. 3 is that the utility model cylinder head of internal combustion engine intake and exhaust valve B is to schematic representation;

Fig. 4 is that the utility model cylinder head of internal combustion engine intake and exhaust valve C is to schematic representation;

Fig. 5 is the utility model cylinder head of internal combustion engine intake and exhaust valve rocking arm schematic representation;

Fig. 6 is that the utility model cylinder head of internal combustion engine intake and exhaust valve rocking arm D is to schematic representation.

Below in conjunction with Fig. 1-Fig. 6 embodiment of the present utility model is done detailed explanation.

1, cylinder head main body; 2, air intake valve; 3, drain tap; 4, pilot hole; 5, spark-plug hole; 6, outlet valve compressing tablet; 7, spring; 8, valve conduit; 9, the camshaft fitting surface of rocking arm; 10, rocking arm; 11, spring; 12, suction valve compressing tablet; 13, rocker shaft hole; 14, regulate screw; 15, firing chamber; 16, Transmission Room; 17,18, valve rod.

The utility model relates to cylinder head of internal combustion engine intake and exhaust valve, as shown in Figure 1, be that 2 air intake valves 2 and 1 drain tap 3 are installed in cylinder head main body 1 firing chamber 15, and the inlet and outlet valve is in triangular distribution the increase of drain tap diameter.Advance the spark-plug hole 5 of fuel, cylinder head main body pilot hole 4.

Shown in Figure 2 is a kind of form schematic representation, and promptly outlet valve and suction valve are V-shape, are not limited to this pattern in actual product.Valve conduit 8 is arranged outside the

valve rod

17,18, structures such as outlet valve compressing tablet 6 and suction valve compressing tablet 12 and spring 7,11 and prior art are basic identical, but the rocking arm 10 that connects 2 air inlet valve levers has two statures, is double end rocking arm 10, and there is camshaft fitting surface 9 the rocking arm other end.

Shown in Figure 3 be the B of Fig. 2 to schematic representation, can see Transmission Room 16 situations because the technological scheme of driving mechanism is more, structure, shape have nothing in common with each other, so the concrete driving mechanism that do not draw.The rocking arm that cooperates with outlet valve is also identical with prior art, and what cooperates with suction valve is that double end rocking arm 10 is " three pin " shape, and a pin matches with driving mechanism (as camshaft), and other cooperates with the air intake valve valve rod by two pin.Fig. 4 be 2 suction valves from C to looking schematic representation.Fig. 5 is rocking arm 10 plan views, Fig. 6 be rocking arm 10D to schematic representation, i.e. plan view, the adjusting screw 14 that has rocker shaft hole 13 that usefulness is installed and valve rod to connect in the rocking arm.

Shown in above embodiment and the accompanying drawing, stress that the utility model is that two air intake valves are installed in cylinder head, a drain tap becomes " two advance singly to go out ", and in firing chamber 15 triangularity to arrange be major character.Can adopt other structural type as for rocking arm 10.

Claims

1, cylinder head of internal combustion engine intake and exhaust valve, a cylinder of internal-combustion engine head main body is arranged, in the cylinder head main body, be installed into air valve and drain tap, it is characterized in that described air intake valve (2) is 2, drain tap (3) is 1, and the inlet and outlet valve port is in triangular distribution in fuel chambers (15).