CN203214184U - Direct injection type single-cylinder water-cooling diesel engine with cylinder diameter of 90mm and stroke of 80mm - Google Patents

Abstract

The utility model discloses a direct injection type single-cylinder water-cooling diesel engine with the cylinder diameter of 90mm and the stroke of 80mm. The direct injection type single-cylinder water-cooling diesel engine comprises an engine body component, a cooling mechanism, a cylinder cover and the like. The cylinder diameter of the diesel engine is 90mm, the piston stroke of the diesel engine is 80mm, the boundary dimension of the cylinder cover is 162mm*134mm*66mm, the distance from the center of a crank shaft to the lower plane of an engine body is 170mm, and the weight of the entire engine is not larger than 70kg. Due to the fact that an air inlet passage and an exhaust passage of the cylinder cover are optimally designed, the air inlet vortex intensity is enhanced. Due to the fact that the structure of a combustion chamber on the top of a piston is optimally designed, diesel oil can be burnt more completely, the discharge of exhaust gas of the engine is reduced, energy conservation and emission reduction are achieved, and meanwhile the power output of the engine is increased. Therefore, the discharge of the exhaust gas of the engine can be reduced, the starting performance of the engine is improved, the weight of the engine is lowered, and the problem that an existing single-cylinder diesel engine is not high in compatibility of the dynamic property, the environmental protection property and the economy property is solved.

Description

The direct spray type single-cylinder water cooled diesel engine of 90 millimeters of cylinder diameters, 80 millimeters of strokes

Technical field

The utility model relates to a kind of diesel engine, especially small-sized direct spray type single-cylinder water cooled diesel engine.

Background technique

At present, small-sized single cylinder diesel engine both domestic and external is just towards lightweight, high-power direction high speed development.175 diesel engines of China's independent research (patent No. is 02203793.4) and 180 diesel engines (patent No. is 200520007804.0) are because of its miniaturization fuselage, and high-power output is popular on the market at home and abroad.Yet along with farm machinery is developed to multifunctional and composite type by simple function, and the design of multifunctional agriculture machinery integral also trends towards compact design, therefore diesel powered output and the restriction of volume size is had higher requirement.

A kind of intake and exhaust are at the diesel engine (patent No. is 200910094319.4) of homonymy, be conducive to pressurization system, EGR machine and motor complete machine being in tilted layout in the cabin though intake duct and air outlet flue are arranged in the homonymy of cylinder head, but its structure is complicated, and processing cost is higher.

Also has a kind of diesel engine (patent No. is 201020574089.X), by adding glow plug to cylinder head air inlet side, simultaneously cooling water is directly introduced exhaust valve bridge of the nose district, namely having increased the startability of equipment when low temperature can avoid the too high cylinder cap that causes of temperature in bridge of the nose district to be out of shape again, integrate, coming from the low speed start effect promoting that installs extra auxiliary device additional must increase on the accessory cost to some extent, for pursuing the durable vast farmers Consumer of material benefit, this is not the type that they like.

Moreover, the diesel engine of a kind of outfit intake swirl regulation structure (patent No. is 201010516836.9), its intake duct is divided into high-eddy suction tude and low vortex air intake pipe, be provided with adjustable Flow valve in the low vortex air intake pipe, high-eddy suction tude bifurcated forms some high-eddy intake manifold, low vortex air intake pipe bifurcated forms some low vortex air intake manifolds, and each firing chamber is communicated with a high-eddy intake manifold and a low vortex air intake manifold simultaneously.This structure can be regulated the eddy current in the firing chamber, make and remain suitable swirl rate in the firing chamber, this is the fuel oil raising advantage of fully burning to a great extent, but its external styling complexity, can only the working pressure casting technique cooperate five Cutter Body Processing with Machining Center moulds just can finish product manufacturing production, this also be the bottleneck of this technology extensive use of restriction.

Therefore, under the situation that power and environmental protection take into account, in face of the national conditions that oil price skyrockets, become especially important of new diesel technology explored in research.

Summary of the invention

The utility model provides 90 millimeters of a kind of cylinder diameters, 80 millimeters of strokes, the complete machine quality is not more than 70 kilograms novel direct spray type single-cylinder water cooled diesel engine, can reduce engine exhaust emission and improve the diesel engine starting performance, alleviate the diesel engine quality, solve present single cylinder diesel in power character, the feature of environmental protection and the not high problem of Economy compatibility.

The direct spray type single-cylinder water cooled diesel engine of 90 millimeters of the utility model cylinder diameters, 80 millimeters of strokes, comprise cylinder block set, cooling mechanism, cylinder head assembly, piston crank mechanism, crankshaft-flywheel mechanism, distribution device, admission gear, exhaust gear, fuel delivery controlling mechanism, the cylinder of diesel engine diameter is 90 millimeters, 80 millimeters of piston strokes, cylinder head boundary dimension is 162 * 134 * 66 millimeters, crankshaft center is 170 millimeters to the distance of body lower plane, and the complete machine quality is not more than 70 kilograms.

The utility model diesel engine is optimized design by the inlet and outlet road to cylinder head, strengthens intake vortex strength; The piston head chamber structure is optimized design, make diesel combustion more abundant, thereby reduce the discharging of engine exhaust, when reaching energy-saving and emission-reduction, improved the power output of motor again, improve the competitive ability of product on market, become the first-selection that this series products is had the Consumer of demand.

Description of drawings

Fig. 1 is the utility model motor overall structure figure one.

Fig. 2 is the utility model motor overall structure figure two.

Fig. 3 is the utility model engine cylinder cap assembly assumption diagram.

Fig. 4 is the utility model engine cylinder cap sectional drawing.

Fig. 5 is the structural drawing of the utility model engine piston.

Wherein: the 1-cylinder block set; The 2-cooling mechanism; The 3-cylinder head assembly; The 4-piston crank mechanism; 5-crankshaft-flywheel mechanism; The 6-distribution device; 7-admission gear; The 8-exhaust gear; 9-fuel delivery controlling mechanism; 10-cylinder head intake duct; 11-piston head firing chamber.

Embodiment

Describe the utility model diesel engine embodiment in detail below in conjunction with embodiment and accompanying drawing thereof, but embodiment of the present utility model is not limited to following embodiment.

As shown in Figure 1 and Figure 2, single cylinder water-cooling direct injection diesel that 90 millimeters strokes of a kind of cylinder bore are 80 millimeters is made of cylinder block set 1, cooling mechanism 2, cylinder head assembly 3, piston crank mechanism 4, crankshaft-flywheel mechanism 5, distribution device 6, admission gear 7, exhaust gear 8, fuel delivery controlling mechanism 9.Crankshaft center is 170 millimeters to the distance of body lower plane.

As shown in Figure 3, cylinder head intake duct 10 by cylinder head assembly 3 right sides to left side boundary dimension from large to small, form the eddy current shape.

During the work of the utility model diesel engine, after air is entered by cylinder head intake duct 10, the air-flow that formation rotatablely moves, form uniform mixing gas mixture with the vaporific fuel oil of injection into pistion top combustion chamber 11, in the low speed operating mode, the intake duct after the optimal design can make the air that enters form stronger eddy current especially, makes air mix more even fully with fuel oil, thereby burn also more completely, reduced exhaust gas discharging.

Claims (1)

1. the direct spray type single-cylinder water cooled diesel engine of 90 millimeters of cylinder diameters, 80 millimeters of strokes, comprise cylinder block set (1), cooling mechanism (2), cylinder head assembly (3), piston crank mechanism (4), crankshaft-flywheel mechanism (5), distribution device (6), admission gear (7), exhaust gear (8), fuel delivery controlling mechanism (9), it is characterized in that: cylinder bore is 90 millimeters, 80 millimeters of piston strokes, cylinder head boundary dimension is 162 * 134 * 66 millimeters, and crankshaft center is 170 millimeters to the distance of body lower plane.

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