CN201496171U

CN201496171U - Four-stroke 360 degree turnover gasoline engine firing mixed oil

Info

Publication number: CN201496171U
Application number: CN2009203084802U
Authority: CN
Inventors: 唐琦; 张宝欢; 任立环
Original assignee: TIANJIN INTERNAL-COMBUSTION ENGINE INST
Current assignee: TIANJIN INTERNAL-COMBUSTION ENGINE INST
Priority date: 2009-08-21
Filing date: 2009-08-21
Publication date: 2010-06-02
Anticipated expiration: 2019-08-21

Abstract

The utility model discloses a four-stroke 360 degree turnover gasoline engine which fires mixed oil, comprising a body. A crank room and a valve operating room are arranged in the body, a crank connecting rod and a piston are arranged in the crank room. A cylinder head room is arranged in a cylinder head cover, a gas inlet valve and a gas exhaust valve are arranged in the cylinder head room, a valve control device is arranged in the valve operating room. The gas inlet valve is communicated with a gas inlet port, the gas inlet port is communicated with the crank room, the valve operating room and the cylinder head room. The gas exhaust valve is communicated with a gas exhaust port, the crank room, the valve operating room and the cylinder head room are communicated with each other. The gasoline engine also comprises a gas inlet pipe, the gas inlet pipe is connected with a carburetor outlet, a reed valve is arranged at the outlet of the gas inlet pipe, the reed valve is connected with the crank room, the crank room, the valve operating room and the cylinder head room are formed a sealing space with the cylinder head room. The pollution of the device is light, and the oil consumption is low.

Description

Burn 360 ° of upset petrol engine of four-stroke of miscella

Technical field

The utility model relates to the miniature gasoline engine field, more particularly, relates to a kind of four-stroke miniature gasoline engine.

Background technique

At present home and abroad miniature gasoline engine application is very extensive, and 360 ° of upsets of many working condition requirement gasoline functions, and where position in office all can proper functioning, as: hand tools such as chain saw, vegetation trimmer, sheep shearer.The miniature gasoline engine of hand tools uses such as chain saw, vegetation trimmer, sheep shearer is two-stroke gasoline engine at present, but two-stroke gasoline engine is big because of polluting, oil consumption is high, and is restricted.

Summary of the invention

The purpose of this utility model is to overcome the deficiency of prior art, and a kind of a kind of 360 ° of upset petrol engine of four-stroke that pollute little, fuel-efficient burning miscella that small-sized two-stroke upset petrol engine pollutes the problem big, that oil consumption is high that solved are provided.

360 ° of upset petrol engine of the four-stroke of burning miscella of the present utility model, it comprises body, be connected with valve mechanism cover respectively at described body top and bottom, lower body, in described body, be provided with crank chamber and air door operation chamber, in described crank chamber, be provided with crank-connecting rod and piston, in described valve mechanism cover, be provided with the cylinder head chamber, at indoor intake valve and the exhaust valve of being provided with of described cylinder head, at the indoor valve operation device that is provided with of described air door operation, described intake valve is connected with the intake duct of opening on body, described intake duct and crank chamber, air door operation chamber and cylinder head chamber are connected, described exhaust valve is connected with the air outlet flue of opening on body, described crank chamber, air door operation chamber and cylinder head chamber are connected with each other logical, it also comprises a suction tude, described suction tude links to each other with the outlet of a Carburetor, the outlet end of described suction tude is provided with leaf valve, described leaf valve links to each other with crank chamber, described crank chamber, valve control cab and cylinder head chamber and described leaf valve form enclosed space.

Along with country to environmental protection and requirements of saving energy increasingly stringent, the Abgasgesetz of petrol engine is constantly added sternly, and that two-stroke gasoline engine pollutes is big, oil consumption is high, is difficult to reach standard.Because the structure of two-stroke gasoline engine and working procedure institute are extremely, pollution is big, the high problem of oil consumption is difficult to solve.The utility model four-stroke upset petrol engine is littler than the pollution of two-stroke upset petrol engine, oil consumption is low, especially as hand tool power, can improve careless operator's operating conditions greatly.Adopt four-stroke upset petrol engine of the present utility model to substitute the oil consumption of two-stroke upset petrol engine and can reduce by 20～30%.

Description of drawings

Fig. 1 is 360 ° of upset petrol engine of four-stroke structural representation of burning miscella of the present utility model;

Fig. 2 is that sectional view is looked on the left side of petrol engine shown in Figure 1;

Fig. 3 is the air inlet working position schematic representation of petrol engine of the present utility model;

Fig. 4 is that sectional view is looked on the left side of petrol engine shown in Figure 3;

Fig. 5 is the exhaust work position view of petrol engine of the present utility model.

Embodiment

Below in conjunction with the drawings and specific embodiments the utility model is described in detail.

360 ° of upset petrol engine of the four-stroke of burning miscella of the present utility model as shown in drawings, it comprises body 4, be connected with valve mechanism cover 5 respectively at described body top and bottom, lower body, in described body 4, be provided with crank chamber 4A and air door operation chamber 4B, in described crank chamber, be provided with crank-connecting rod 11 and piston 9, in described valve mechanism cover 5, be provided with cylinder head chamber 5A, in described cylinder head chamber 5A, be provided with intake valve 6 and exhaust valve 7, in described air door operation chamber 4B, be provided with valve operation device 10, described intake valve is connected with the intake duct of opening on body, described intake duct and crank chamber, air door operation chamber and cylinder head chamber are connected with each other logical, described exhaust valve is connected with the air outlet flue of opening on body 8, it also comprises a suction tude 2 that is provided with a leaf valve 3 in it, the import of described suction tude 2 links to each other with the outlet of a Carburetor and its outlet links to each other described crank chamber with described crank chamber 4A, valve control cab and cylinder head chamber and described leaf valve form enclosed space.

Crank chamber 4A, valve control cab 4B, communicate and leaf valve 3 formation enclosed spaces with 5A three Room, cylinder head chamber, crank chamber 4A when piston stroking upward, valve control cab 4B, the highest chamber 5A three indoor formation negative pressure, at this moment leaf valve 3 is opened, and miscella is atomized into particulate and enters (shown in Fig. 1,2) in the crank chamber 4A after air mixing through Carburetor.

Leaf valve 3 cuts out during descent of piston, and the mixed oil and gas that enters in the crank chamber 4A is squeezed into valve control cab 4B and the highest chamber 5A, and along with the motion of air-flow, small lubricant oil particulate just on the surface attached to part, is lubricated (Fig. 3 Fig. 4) to each moving surface.

Piston 9 is descending when aspirating stroke, and intake valve 6 is opened the fuel mixture in crank chamber 4A, valve control cab 4B and the cylinder head chamber 5A is sucked 14 (Fig. 3 Fig. 4) in the cylinder through intake duct 12.

Compression stroke: piston 9 up inlet and exhaust valve closes compression enter the fuel mixture in the cylinder, crank chamber 4A, valve control cab 4B, with cylinder head chamber 5A three indoor formation negative pressure, at this moment leaf valve 3 is opened, and miscella is atomized into particulate and enters (Fig. 1 Fig. 2) in the crank chamber 4A after air mixing through Carburetor.

Power stroke: spark plug 13 is lighted compressed mixed gas, and the gas of burning sharply expands, and promotes descent of piston and can be converted into mechanical energy with interior.Enter mixed oil and gas in the crank chamber 4A and be squeezed into valve control cab 4B and the cylinder head chamber 5A motion with the work air-flow, the just attached work of small lubricant oil particulate is lubricated (Fig. 3 Fig. 4) to each moving surface on the surface of part.，

Exhaust stroke: piston 9 moves upward, and outlet valve 7 is opened, and waste gas after burning is discharged (Fig. 5) through air outlet flue 8.

Claims

1. burn 360 ° of upset petrol engine of four-stroke of miscella, it comprises body, be connected with valve mechanism cover respectively at described body top and bottom, lower body, in described body, be provided with crank chamber and air door operation chamber, in described crank chamber, be provided with crank-connecting rod and piston, in described valve mechanism cover, be provided with the cylinder head chamber, at indoor intake valve and the exhaust valve of being provided with of described cylinder head, at the indoor valve operation device that is provided with of described air door operation, described intake valve is connected with the intake duct of opening on body, described intake duct and crank chamber, air door operation chamber and cylinder head chamber are connected, described exhaust valve is connected with the air outlet flue of opening on body, described crank chamber, air door operation chamber and cylinder head chamber are connected with each other logical, it is characterized in that: it also comprises a suction tude, described suction tude links to each other with the outlet of a Carburetor, the outlet end of described suction tude is provided with leaf valve, described leaf valve links to each other with crank chamber, described crank chamber, valve control cab and cylinder head chamber and described leaf valve form enclosed space.