CN2818817Y

CN2818817Y - Horizontal opposed-double cylinder gasoline engine

Info

Publication number: CN2818817Y
Application number: CN 200520013883
Authority: CN
Inventors: 应宁宁
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-08-06
Filing date: 2005-08-06
Publication date: 2006-09-20
Anticipated expiration: 2015-08-06

Abstract

The utility model discloses a horizontal and opposite arrangement double-cylinder gasoline engine, which comprises an upper and a lower machine bodies (1, 2), cylinder bodies (7), a spark plug (6), a piston assembly (4), a piston ring (3), a crank connecting rod assembly (5), a reed valve assembly (9) and a carburettor (11), wherein the crank connecting rod assembly (5) is arranged in a crank box which is composed of the upper and the lower machine bodies (1, 2); the right and the left cylinder bodies (7) are horizontally arranged at both sides of the crank box which is composed of the upper and the lower machine bodies (1, 2); the piston assembly (4) is connected with one end of a connecting rod of the crank connecting rod assembly (5), and is arranged in the right and the left cylinder bodies (7); the carburetor (11) is fixedly connected with the other plane of the crank box by the reed valve assembly (9), and the crank box is composed of the right and the left cylinder bodies (7); the right and the left cylinder bodies (7) are respectively provided with exhaust pipes (8); the carburetor (11) is fixed with an air intake seat (10). When the cylinder diameter is at 33MM, the discharge volume is at 48 CC, the maximum power can reach 3.1 kw /8500 rpm, and the rotational speed stabilization ratio is within 1%. The utility model has the advantages of simple and compact structure, small size, high heat power, good stability, low cost, etc.

Description

The flat opposed double-cylinder gasoline engine

Technical field

The utility model relates to a kind of petrol engine, particularly a kind of small capacity double cylinder gasoline engine.

Background technique

At present, general small capacity double cylinder gasoline engine structure generally has two kinds of V-type double-cylinder gasoline engine and abreast-type double-cylinder gasoline engines, exist following defective: the one, because piston is not done the symmetric motion of relative crankshaft center at grade, can not offset interaction force, cause the petrol engine vibration big, consumed the power of petrol engine virtually, power consumption is big, utilization ratio is low; Two is that two cylinders are not worked simultaneously, and petrol engine rotational speed stability is poor relatively; The 3rd, need to be equipped with two Carburetors, and, to have increased the production difficulty the coherence request height of two Carburetors, improved cost of production; The 4th, volume is big, installation is inconvenient.

Summary of the invention

For overcoming the above-mentioned disadvantage that existing double-cylinder gasoline engine exists, problem to be solved in the utility model provide a kind of simple and compact for structure, thermal power is high, speed stability good, flat opposed double-cylinder gasoline engine easy for installation.The technological scheme that its technical problem that solves the utility model adopts comprises upper and lower body, cylinder block, spark plug, piston assembly, piston ring, crankshaft rod assembly, reed valve ASSY, Carburetor, described crankshaft rod assembly is arranged in the crankcase of upper and lower organization, left and right cylinder block is horizontally set on the crankcase both sides of upper and lower organization, piston assembly is connected connecting rod one end of crankshaft rod assembly and is arranged in the left and right cylinder block, and Carburetor is fixedly connected on another plane of crankcase of upper and lower organization by reed valve ASSY.

For the ease of toxic emission, be respectively equipped with outlet pipe on the described left and right cylinder block.

For the ease of air inlet, be fixed with air inlet seat on the described Carburetor.

After adopting said structure, crankshaft center symmetric motion relatively in the two-piston while left and right sides cylinder block at grade the vibration force of its generation is cancelled out each other, so this machine vibration is little, efficient is high, and speed stability is good; Because air inlet seat, Carburetor and reed valve ASSY are set directly on the crankcase of upper and lower organization, so this machine only need be equipped with a Carburetor again; Have rational in infrastructure, volume is little, easy for installation, thermal power is high, good stability, low cost and other advantages.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

The cross-sectional view of the A-A of Fig. 2 Fig. 1.

Embodiment

Illustrated in figures 1 and 2, specific embodiments for a kind of flat opposed double-cylinder gasoline engine of the utility model, it comprises,

lower body

1,2, cylinder block 7, spark plug 6, piston assembly 4, piston ring 3, crankshaft rod assembly 5, reed valve ASSY 9, Carburetor 11, described crankshaft rod assembly 5 is arranged on, lower body 1, in 2 crankcases of forming, a left side, right cylinder block 7 is horizontally set on, lower body 1, the 2 crankcase both sides of forming, piston assembly 4 is connected connecting rod one end of crankshaft rod assembly 5 and is arranged on a left side, in the right cylinder block 7, a left side, be respectively equipped with outlet pipe 8 on the right cylinder block 7, Carburetor 11 is fixedly connected on by reed valve ASSY 9, lower body 1, on 2 another planes of crankcase of forming, be fixed with air inlet seat 10 on the Carburetor 11.

The utility model working procedure is as follows, air enters from air inlet seat 10, oil gas mixed aerosol in Carburetor 11, piston 4 kinetic variation in pressure controls in the crankcase enclosed space that the reed Push And Release of reed valve ASSY 9 is made up of upper and

lower body

1,2, fuel-air mixture enters into respectively in two cylinder blocks 7 again, crankshaft rod assembly 5 drives left and right piston assembly 4 work and finishes air inlet, compression, acting and four processes of exhaust of left and right two cylinder blocks 7, thereby finishes petrol engine work.Through this machine is tested, when cylinder diameter was 33mm, discharge capacity was 48cc, and peak output can reach 3.1kw/8500rpm, and the stabilization of speed rate is the best petrol engine of domestic petrol engine medium speed stability in 1%.

Claims

1, a kind of flat opposed double-cylinder gasoline engine, comprise, lower body (1,2), cylinder block (7), spark plug (6), piston assembly (4), piston ring (3), crankshaft rod assembly (5), reed valve ASSY (9), Carburetor (11), it is characterized in that: described crankshaft rod assembly (5) is arranged on, lower body (1,2) in the crankcase of Zu Chenging, a left side, right cylinder block (7) is horizontally set on, lower body (1,2) the crankcase both sides of Zu Chenging, piston assembly (4) is connected connecting rod one end of crankshaft rod assembly (5) and is arranged on a left side, in the right cylinder block (7), Carburetor (11) is fixedly connected on by reed valve ASSY (9), lower body (1,2) on another plane of the crankcase of Zu Chenging.

2, flat opposed double-cylinder gasoline engine according to claim 1 is characterized in that: be respectively equipped with outlet pipe (8) on the described left and right cylinder block (7).

3, flat opposed double-cylinder gasoline engine according to claim 1 and 2 is characterized in that: be fixed with air inlet seat (10) on the described Carburetor (11).