CN2211496Y

CN2211496Y - Engine with rotary air valve

Info

Publication number: CN2211496Y
Application number: CN 95230285
Authority: CN
Inventors: 鞠福祥
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-02-20
Filing date: 1995-02-20
Publication date: 1995-11-01
Anticipated expiration: 2005-02-20

Abstract

The utility model relates to an engine with a rotary air valve, which comprises a cylinder, a cylinder cover, a piston and the rotary air valve. An exhaust passage is arranged on the cylinder cover or the cylinder. The rotary air valve is fixed on the cylinder cover or the outside of the cylinder. The rotary air valve has the structure of a plug valve. The side of the valve body of the plug valve is provided with an air inlet and outlet. The air inlet and outlet is communicated with the cylinder cover or an air inlet and outlet passage arranged on the cylinder. An air inlet passage and an air outlet passage are arranged on a valve core. Two passages individually have one opening which is arranged at the side of the valve core. The two passages individually have the other opening which are respectively arranged on the upper bottom surface and the lower bottom surface of the valve core. The directions of outlets of two passage openings of the side of the valve core are mutually vertical. The utility model saves parts because the air inlet and out of the cylinder only needs one rotary air valve to single-cylinder engines, two-cylinder engines or four-cylinder engines.

Description

Engine with rotary air valve

The utility model relates to the valve of a kind of internal-combustion engine, particularly a kind of internal-combustion engine.

" friend of automobile " magazine of China, 1993 the 6th interim discloses a kind of rotary valve motor, and each cylinder of this motor all will have two spherical rotary valves, uses as intake and exhaust respectively.Because valve is many, thereby Component are many, Component are many, and the possibility that breaks down in the use is also many, also cause the product cost height simultaneously.

The purpose of this utility model is in order to overcome above-mentioned deficiency, to propose the few rotary valve motor of a kind of Component.

The utility model is realized with the following method.

The rotary valve motor has cylinder, cylinder head, piston and rotary valve.The intake and exhaust channel of a passage as cylinder arranged on cylinder head or the cylinder, the cylinder head or the cylinder outside, intake and exhaust channel mouth place, fix a rotary valve, the structural similarity of rotary valve and stopcock is by by the valve body of garden platform shape inner chamber with can form at the garden platform shape spool of body cavity rotation.Side of valve body has opening, and as porting, porting is connected with intake and exhaust channel on cylinder head or the cylinder; Two passages that do not communicate are arranged in the spool, and one is gas-entered passageway, and another is the exhaust passage, and two passages all have a mouth in the side of spool, and another mouthful be bottom surface on spool respectively, and the Way out of two passages of platform side, spool garden is orthogonal.The last bottom surface of valve body has end cap, and links to each other with the air inlet and exhaust piper of motor by end cap respectively.The spool of rotary valve revolves in four stroke procedure of motor and turns around, in the spool rotary course, gas-entered passageway in the spool and exhaust passage can be alternately with valve body on porting be connected.By sense of rotation, the exhaust passage is preceding, gas-entered passageway after.

During suction stroke, the gas-entered passageway of spool is connected with the porting of valve body, and piston motion can suck air or mixed gas in the cylinder; Compression stroke and explosion stroke, two 1/4th of spool rotations, because of the exhaust passage perpendicular at the Way out of the passway of spool side and air intake passage mouth, so spool is in the position of sealing the valve body porting; Exhaust stroke, spool are rotated 1/4th circles again, and the exhaust passage of spool is connected with the porting of valve body, and piston motion can be discharged cylinder to waste gas.

Adopt the utility model, a rotary valve just can satisfy cylinder intake and exhaust and use, for twin cylinder engine, if two portings are arranged on the valve body of rotary valve, a rotary valve just can satisfy advancing of two cylinders, exhaust is used, for four cylinder engine, if uniform four portings on the valve body of rotary valve, four cylinders become four jiaos of distributions, rotary valve is in the centre, a valve just can satisfy advancing of four cylinders, exhaust is used, so the utility model Component are few, the possibility of emerged in operation fault is also few, and product cost can reduce.

Below in conjunction with accompanying drawing the utility model is further described.

Fig. 1 is the spool plan view of rotary valve,

Fig. 2 is the internal organs view of Fig. 1,

Fig. 3 is the valve body plan view of single-cylinder engine with rotary valve,

Fig. 4 is the internal organs view of Fig. 3,

Fig. 5 is the valve body internal organs view of twin cylinder engine with rotary valve,

Fig. 6 is the valve body internal organs view of four cylinder engine with rotary valve,

Fig. 7 is a rotary valve single-cylinder engine suction stroke schematic representation,

Fig. 8 is a rotary valve single-cylinder engine exhaust stroke schematic representation,

Fig. 9 is a rotary valve twin cylinder engine schematic representation,

Figure 10 is a rotary valve four cylinder engine schematic representation.

Among Fig. 1, Fig. 2, the spool 1 of rotary valve is a garden platform shape, gas-entered passageway 11 and exhaust passage 12 are arranged in the spool 1, two passages respectively have the side of a mouth at garden platform shape spool, another mouthful of gas-entered passageway 11 in the Da Yuan bottom surface of spool, another mouthful of exhaust passage 12 be in the Xiao Yuan bottom surface of spool, two passages are orthogonal at the Way out of two mouths of side.

Among Fig. 3, Fig. 4, rotary valve valve body 2 has garden platform shape inner chamber, spool 1 can rotate in body cavity, form rotary valve, there is a porting 21 the valve body side, when spool 1 rotated in valve body, gas-entered passageway in the spool and exhaust passage can alternately be connected with the porting of valve body 2 sides.

Among Fig. 5, the rotary valve twin cylinder engine is with the valve body 2 ' side of rotary valve, have 22,23, two portings of two portings can garden, valve body side week at a distance of 1/4 garden Zhou Chu.

Among Fig. 6, the rotary valve four cylinder engine is with the valve body 2 of a rotary valve " garden week side, uniform four

portings

24,25,26,27.

Among Fig. 7, on the cylinder head 7 of rotary valve single-cylinder engine intake and exhaust channel 71 is arranged, rotary valve is fixed on the outside of cylinder head 7, the porting 21 of its valve body 2 is connected with intake and exhaust channel 71 on the cylinder head 7, there is air inlet end shield 3 the rotary valve upper end, air inlet end shield 3 is connected with suction tude 31, there is exhaust end shield 4 the rotary valve lower end, the exhaust end shield is connected with outlet pipe 41, the spool 1 of rotary valve is driven by axle 5 and turns clockwise, and motor is through four strokes, and spool 1 revolves and turns around, spool 1 can compress with the spring 9 between spool 1 and air inlet end shield, prevents the loosening gas leakage of spool.

During suction stroke, allow the gas-entered passageway of spool communicate with porting on the valve body, piston 8 moves downward, air and mixed gas in suction tude 31, air inlet end shield 3, spool on gas-entered passageway 11, the valve body intake and exhaust channel 71 on porting 21 and the cylinder head 7 enter in the cylinder 6.Compression stroke and explosion stroke, spool change two 1/4th circles, spools and are sealing valve body porting position.

Among Fig. 8, when exhaust stroke, spool changes one 1/4th circle again, exhaust passage 12 in the spool and the porting on the valve body are connected, piston 8 moves upward, exhaust passage 12, exhaust end shield 4, outlet pipe 41 are discharged in the intake and exhaust channel 71 of waste gas in the cylinder 6 on cylinder head 7, the porting 21 on the rotary valve valve body 2, the spool 1, finish four strokes.

Among Fig. 9, the rotary valve twin cylinder engine is similar to above-mentioned rotary valve single-cylinder engine, two cylinder head have an intake and exhaust channel respectively, the valve body of rotary valve as shown in Figure 5, rotary valve is in the middle of two cylinders, and two portings on the valve body are connected with intake and exhaust channel on two cylinder head respectively.

Among Figure 10, the rotary valve four cylinder engine is similar with twin cylinder engine to above-mentioned rotary valve single cylinder, four cylinder head have an intake and exhaust channel respectively, the valve body of rotary valve as shown in Figure 6, four cylinders 61,62,63,64 are at four angles, rotary valve is fixed on the centre of four cylinders, and four portings on its valve body are connected with intake and exhaust channel on four cylinder head respectively.

Intake and exhaust channel on the cylinder head of rotary valve motor also can be on cylinder, and promptly near the piston top dead center of cylinder, intake and exhaust channel is on cylinder the time, and rotary valve should be fixed on the cylinder outside.

Claims

1, a kind of rotary valve motor comprises cylinder, cylinder head, piston and valve, it is characterized in that:

(1) intake and exhaust channel is arranged on cylinder head or the cylinder,

(2) rotary valve is fixed at cylinder head or the cylinder outside, intake and exhaust channel place,

(2.1) rotary valve has the valve body of garden platform shape inner chamber and the garden platform shape spool that can rotate in body cavity,

(2.2) porting that is connected with intake and exhaust channel on cylinder head or the cylinder is arranged on the valve body,

(2.3) have on the spool when spool rotates in valve body, the gas-entered passageway and the exhaust passage that can alternately be connected with porting on the valve body, two passages respectively have a mouth in the side of spool, another mouthful bottom surface on spool respectively, the Way out of two passages of spool side is orthogonal, by sense of rotation, on the spool exhaust passage preceding, gas-entered passageway after.