CN2916160Y

CN2916160Y - Gasoline engine

Info

Publication number: CN2916160Y
Application number: CNU2006200341045U
Authority: CN
Inventors: 王远先; 赖勇; 何旭宗; 吉庆文; 龚靖宇; 汪建忠; 王国元
Original assignee: Mianyang Xinchen Power Machinery Co Ltd
Current assignee: Mianyang Xinchen Power Machinery Co Ltd
Priority date: 2006-05-01
Filing date: 2006-05-01
Publication date: 2007-06-27
Anticipated expiration: 2016-05-01

Abstract

A gasoline engine is provided, which comprises a cylinder, a cylinder cover, a piston, a brace connecting rod mechanism, a valve actuating mechanism, an intake and exhaust system, a fuel supply system, a lubrication system, a cooling system, an electronic control fuel injection system, an electronic ignition system and parts and components as star up device. The utility model, with the structure of reciprocating piston type, in-line type, four-cylinder type, four-stroke type, water cooling type and electronic control fuel injection type, is characterized in that: a gantry cylinder without cylinder liner, a 16 valves cylinder cover, a ridge firebox with the cubage of 51.8ML and a spark plug position in its centre, the valve actuating mechanism with a dual overhead camshaft and a mechanical valve tappet are applied by it with the cylinder diameter of 91mm and the piston stroke of 84mm. The utility model, with the gasoline engine discharging volume of 2.185L and the rating power of 94 KW, is mainly served as the auxiliary power for puddle jumper, light truck, light station wagon and saloon car as well as the substituted power for the imported vehicle of the same category.

Description

A kind of petrol engine

Technical field

The utility model belongs to internal-combustion engine, relates to a kind of petrol engine, is the improvement of prior art, is applicable to automobile engine of light car uses such as 4RB3 type.

Background technique

Development along with Domestic Automotive Industry, the concerned countries rules obtain further perfect, cornering ability, Economy, travelling comfort and the environmental pollution etc. of automobile have been proposed requirements at the higher level, simultaneously, the client also proposes similar requirement to this, automobile and prime mover industry have been proposed new problem.Existing petrol engine, because initial stage design deficiency, satisfied cornering ability, its Economy is undesirable, and has satisfied Economy, and its cornering ability is undesirable again, cornering ability and Economy are difficult to take into account simultaneously, using effect is relatively poor, and oil consumption and pollute bigger than normally, does not satisfy the development need of automobile, prime mover industry.

Summary of the invention

The purpose of this utility model is intended to overcome above-mentioned deficiency of the prior art, it is 91 millimeters, 84 millimeters of piston strokes, 94 kilowatts of power that a kind of electric-controlled type, cylinder diameter are provided, moment of torsion 195 newton. the low pollution petrol engine of NBS is satisfied in rice, discharging, noise and oil consumption.

Content of the present utility model is: a kind of petrol engine, by cylinder block, cylinder head, piston and connecting rod, distribution device, air inlet system and exhaust system, fuel supply system, lubrication system, cooling system, electric control fuel oil jet system, the electronic control ignition system, component such as starting arrangement are formed, its structural type is a reciprocating piston type, in upright arrangement vertical, four cylinders, four-stroke, water-cooled, the electronic fuel injection formula, it is characterized in that: described cylinder block adopts planer-type, no cylinder sleeve structural type, described cylinder head adopts 16 air valves, pentroof combustion chamber, 51.8 milliliters of combustion chamber volume, spark plug is in the central position, firing chamber, described distribution device adopts Dual Over Head Camshaft, valve tappet is a mechanical type, and cylinder bore is 91 millimeters, piston stroke is 84 millimeters.

In the content of the present utility model: described piston and connecting rod adopt the skirt piston, and depth pistion is 59 millimeters, and compression height is 35.5 millimeters, adopts slim piston ring, steel disc formula oil ring.

In the content of the present utility model: described bent axle is high-intensity ductile iron crankshaft, and eight equilibrium blocks are arranged, and the crankshaft torsional vibrations belt pulley is the signal belt pulley.

In the content of the present utility model: described electric control fuel oil jet system adopts multiple spot electronic gasoline injection, detonation sensor, closed loop control to add ternary catalyzing unit.

In the content of the present utility model: the intake advance angle of described distribution device is 13 °, and the air inlet retardation angle is 47 °, and exhaust advance angle is 53 °, and the exhaust lag angle is 7 °.

After adopting such scheme, the petrol engine that the utility model provides, discharge capacity is 2.185 liters, 94 kilowatts of rated power, rated torque 195 newton. rice, compression ratio 9.4 is mainly used in the mating power of light duty cross-country car, light truck, light-duty notchback and car, also can be used as the alternate power of similar imported auto.

Description of drawings

Fig. 1 is the utility model master sectional structure schematic representation;

Fig. 2 is the utility model side sectional structure schematic representation.

Among the figure, critical piece of the present utility model: 1-cylinder head, 2-cylinder block, 3-bent axle, 4-exhaust cam shaft, 5-admission cam shaft, 6-adjust pad, 7-machinery tappet, 8-piston, 9-torsional oscillation crankshaft signal belt pulley.

Embodiment

The utility model is described in further detail below by embodiment:

Embodiment 1:

Referring to each accompanying drawing.A kind of 4RB3 type petrol engine, form by component such as cylinder block, cylinder head, piston and connecting rod, distribution device, air inlet system and exhaust system, fuel supply system, lubrication system, cooling system, electric control fuel oil jet system, electronic control ignition system, starting arrangements, its structural type is that reciprocating piston type, vertical, four cylinders in upright arrangement, four-stroke, water-cooled, cylinder diameter are 84 millimeters of 91 millimeters, piston stroke, the electronic fuel injection formula.

The cylinder head 1 of this petrol engine: adopt cast aluminium alloy, 16 air valves, design increases the inlet flow area like this, and flow resistance reduces, thereby volumetric efficiency increases, pumping loss reduces, and HP, hp/litre and moment of torsion increase, and the firing chamber is a ridge shape, spark plug is in the firing chamber middle position, be convenient to organize gas in the jar to flow, realize rapid combustion easily, the combustion efficiency height; Cylinder block 2: adopt alloy cast iron, planer-type, no cylinder sleeve structural type make its compact structure like this, and strength and stiffness are better, and inblock cylinder is classified array as, 91 millimeters of cylinder diameters, 102.5 millimeters of cylinder core distances, 270.5 millimeters of cylinder body total heights; Piston and connecting rod: adopt skirt piston 8, piston skirt spray graphite, depth pistion is 59 millimeters, compression height is 35.5 millimeters, piston external diameter is 91 millimeters, adopt the thin type piston ring merit of can reducing friction, the axial width of piston gas ring groove is 1.5 millimeters, the axial width of oil ring groove is 4 millimeters, oil ring adopts the steel disc combined type, wrist pin adopts wholly floating, 56 millimeters in connnecting rod big end aperture, 24 millimeters in microcephaly aperture, 145 millimeters of CONCENTRIC REDUCER hole centre distance with cooperating of piston seat hole and lining of connecting rod small end hole; Distribution device adopts Dual Over Head Camshaft, and valve tappet 7 is a mechanical type, regulates the valve clearance by adjusting pad 6 during the motor assembling, makes engine operation more reliable, and timing mechanism adopts chain-driven; The crankshaft-flywheel group: bent axle 3 adopts high-intensity ductile iron crankshaft, be full supporting, eight equilibrium blocks are arranged, 60 millimeters of main journal diameters, 53 millimeters of rod journal diameters, rubber torsional balancer crank pulley 9 double crankshaft position sensor wheels, the bent axle front and rear oil seals all adopts the integrated type outside framework oil seal; Oil supply system: adopt electric fuel punp,, fuel oil is sprayed in the cylinder cap air flue, return fuel tank through fuel pressure regulator more than fuel oil by oil sprayer through fuel filter and oily rail; Air inlet system and exhaust system: adopt about air inlet-outlet pipe to split, suction tude is a resonant mode; Lubrication system: the lubricating system that adopts pressure lubrication to combine with splash lubrication; Cooling system: adopt the enclosed of cylinder body water inlet, cylinder cap water outlet to force the type of cooling, be divided into big short circle according to coolant temperature; Automatical control system: adopt multiple spot closed loop sequence-injection electronic controlled fuel system.

The enhancement mode petrol engine that the utility model provides, exhaust index satisfies the EUROIII rules, and the oil consumption index satisfies GB19578-2004, and noise objective satisfies GB1495-2002.

The utility model is not limited to the foregoing description, and the utility model content is described all can implement and have described good result.

Claims

1, a kind of petrol engine, by cylinder block, cylinder head, piston and connecting rod, distribution device, air inlet system and exhaust system, fuel supply system, lubrication system, cooling system, electric control fuel oil jet system, the electronic control ignition system, component such as starting arrangement are formed, its structural type is a reciprocating piston type, in upright arrangement vertical, four cylinders, four-stroke, water-cooled, the electronic fuel injection formula, it is characterized in that: described cylinder block adopts planer-type, no cylinder sleeve structural type, described cylinder head adopts 16 air valves, pentroof combustion chamber, 51.8 milliliters of combustion chamber volume, spark plug is in the central position, firing chamber, described distribution device adopts Dual Over Head Camshaft, valve tappet is a mechanical type, and cylinder bore is 91 millimeters, piston stroke is 84 millimeters.

2, petrol engine according to claim 1 is characterized in that: described piston and connecting rod adopt the skirt piston, and depth pistion is 59 millimeters, and compression height is 35.5 millimeters, adopts slim piston ring, steel disc formula oil ring.

3, petrol engine according to claim 1 and 2 is characterized in that: described bent axle is high-intensity ductile iron crankshaft, and eight equilibrium blocks are arranged, and the crankshaft torsional vibrations belt pulley is the signal belt pulley.

4, petrol engine according to claim 1 and 2 is characterized in that: described electric control fuel oil jet system adopts multiple spot electronic gasoline injection, detonation sensor, closed loop control to add ternary catalyzing unit.

5, petrol engine according to claim 3 is characterized in that: described electric control fuel oil jet system adopts multiple spot electronic gasoline injection, detonation sensor, closed loop control to add ternary catalyzing unit.