CN2895764Y - Dry-cylinder-sleeve multi-cylinder diesel engine of limiting adjacent cylinder centerline spacing - Google Patents

Abstract

The utility model relates to a dry-cylinder-sleeve multi-cylinder diesel engine of limiting adjacent cylinder centerline spacing which consists of a cylinder body, a cylinder sleeve, a piston, a crank shaft and a connecting rod. The piston moves to-an-fro in the cylinder sleeve through the crank shaft connecting rod device, a dry-cylinder-sleeve is enchased in the cylinder hole, and the center distance of the border cylinders is 127mm plus or minus 1mm. The device realizes that inner diameter of the first kind cylinder sleeve in the diesel engine is Phi 108mm plus or minus 1mm, the inner diameter of the second kind cylinder sleeve is Phi 110mm plus or minus 1mm, the inner diameter of the third kind of cylinder sleeve is Phi 112mm plus or minus 1mm without any change in the shape and structure size of the diesel engine cylinder. The stoke of the first kind cylinder is 125mm plus or minus 2mm, the stoke of the second kind cylinder is 135 mm plus or minus 2mm, the stoke of the third kind cylinder is 120mm plus or minus 2m, Thereby device realizes the diversification of diesel engines, enlarges the diesel engine power, torque and rotating speed range on the basis of ensuring the reliability of the diesel engine, satisfies the demand of market better.

Description

Limit the dry cylinder liner multi-cylinder diesel engine of adjacent cylinder centre distance

(1) technical field:

The utility model belongs to field of internal combustion engine, relates to a kind of dry cylinder liner multi-cylinder diesel engine that limits adjacent cylinder centre distance.

(2) background technique:

At present, China's various types of internal-combustion engine industry vary, power and speed range broadness, and a kind of diesel engine of series is difficult to dealing with various requirements.My LR of company serial diesel engine is through for many years exploitation, can be applied on agricultural and each type of engineering machinery, how further to enlarge its market share? it is too big to drop into a new diesel engine production line input again, the method that gears to actual circumstances most is to make an issue of on existing type, improve power and moment of torsion by the method that enlarges bore and stroke, by the method raising rotating speed of ease off.Can obtain desirable effect with less input like this.

(3) summary of the invention:

It is a kind of rational in infrastructure that the purpose of this utility model is to provide, the dry cylinder liner multi-cylinder diesel engine of power, moment of torsion and speed range broadness.

The utility model adopts following technological scheme to realize above-mentioned purpose: the utility model is made up of cylinder block, dry liner, piston, bent axle and connecting rod, and B is defined as 127mm ± 1mm with adjacent cylinder centre distance, cylinder stroke A ₁Be 125mm ± 2mm, the body inside diameter D can be three kinds, D ₁Be Φ 111mm ± 1mm, D ₂Be Φ 113mm ± 1mm, D ₃Be Φ 115mm ± 1mm, the dry type thin wall cylinder cover of three kinds of internal diameter C of insert, C ₁Be Φ 108mm ± 1mm, C ₂Be Φ 110mm ± 1mm, C ₃Be Φ 112mm ± 1mm.Second embodiment of the present utility model is: B is defined as 127mm ± 1mm with adjacent cylinder centre distance, cylinder stroke A ₂Be 135mm ± 2mm, the body inside diameter D also can be three kinds, D ₁Be Φ 111mm ± 1mm, D ₂Be Φ 113mm ± 1mm, D ₃Be Φ 115mm ± 1mm, the dry type thin wall cylinder cover of three kinds of internal diameter C of insert, C ₁Be Φ 108mm ± 1mm, C ₂Be Φ 10mm ± 1mm, C ₃Be Φ 112mm ± 1mm.The 3rd embodiment of the present utility model is: B is defined as 127mm ± 1mm with adjacent cylinder centre distance, cylinder stroke A ₃Be 120mm ± 2mm, the body inside diameter D also can be three kinds, D ₁Be Φ 111mm ± 1mm, D ₂Be Φ 113mm ± 1mm, D ₃Be Φ 115mm ± 1mm, the dry type thin wall cylinder cover of three kinds of internal diameter C of insert, C ₁Be Φ 108mm ± 1mm, C ₂Be Φ 110mm ± 1mm, C ₃Be Φ 112mm ± 1mm.

The utility model compared with prior art can reach following beneficial effect:

1, under the prerequisite that does not change cylinder block part profile and physical dimension, cylinder jacket of diesel engine internal diameter C is defined as Φ 108mm ± 1mm for first kind, second kind is defined as Φ 110mm ± 1mm, and the third is defined as Φ 112mm ± 1mm; Cylinder stroke A is defined as 125mm ± 2mm for first kind, and second kind is defined as 135mm ± 2mm, and the third is defined as 120mm ± 2mm.Thereby satisfied the user demand of various types.

2, under the prerequisite that guarantees the diesel engine reliability, the part type has improved the nominal power of diesel engine, the part type has improved the Maximum Torque of diesel engine, the part type has improved the rated engine speed of diesel engine, make the user demand of the suitable more multiple machinery of diesel engine, for society has created bigger economic benefit.

(4) description of drawings:

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

Fig. 2 is the utility model adjacent cylinder centre distance, cylinder stroke, body internal diameter and cylinder liner internal diameter configuration schematic diagram.

(5) embodiment:

As shown in Figure 1, insert thin-walled dry liner 2 in the cylinder-bore of cylinder block 1, load onto piston 3 connecting rods 4 and bent axle 5, first kind of cylinder liner internal diameter C is Φ 108mm ± 1mm, second kind of cylinder liner internal diameter C is Φ 110mm ± 1mm, the third cylinder liner internal diameter C is Φ 112mm ± 1mm, cylinder stroke A is 125mm ± 2mm for first kind, second kind is 135mm ± 2mm, the third is 120mm ± 2mm, and adjacent cylinder centre distance B is 127mm ± 0.5mm, and body internal orifice dimension D is Φ 111mm ± 1mm for first kind, second kind is Φ 113mm ± 1mm, and the third is Φ 115mm ± 1mm.Install simultaneously and the matching used piston of cylinder liner internal diameter, piston ring, wrist pin,, under the situation that does not change cylinder block form structure and size, fully satisfied the supporting demand of various types through verification experimental verification.

Claims (3)

1, a kind of dry cylinder liner multi-cylinder diesel engine that limits adjacent cylinder centre distance, form by cylinder block (1), dry liner (2), piston (3), connecting rod (4), bent axle institutes such as (5), it is characterized in that: B is defined as 127mm ± 1mm with adjacent cylinder centre distance, cylinder stroke A ₁Be 125mm ± 2mm, the body inside diameter D can be three kinds, D ₁Be Φ 111mm ± 1mm, D ₂Be Φ 113mm ± 1mm, D ₃Be Φ 115mm ± 1mm, the dry type thin wall cylinder cover of three kinds of internal diameter C of insert, C ₁Be Φ 108mm ± 1mm, C ₂Be Φ 110mm ± 1mm, C ₃Be Φ 112mm ± 1mm.

2, dry cylinder liner multi-cylinder diesel engine according to claim 1, it is characterized in that: B is defined as 127mm ± 1mm with adjacent cylinder centre distance, cylinder stroke A ₂Be 135mm ± 2mm, the body internal diameter can be three kinds, D ₁Be Φ 111mm ± 1mm, D ₂Be Φ 113mm ± 1mm, D ₃Be Φ 115mm ± 1mm, the dry type thin wall cylinder cover of three kinds of internal diameter C of insert, C ₁Be Φ 108mm ± 1mm, C ₂Be Φ 110mm ± 1mm, C ₃Be Φ 112mm ± 1mm.

3, dry cylinder liner multi-cylinder diesel engine according to claim 1, it is characterized in that: B is defined as 127mm ± 1mm with adjacent cylinder centre distance, cylinder stroke A ₃Be 120mm ± 2mm, the body internal diameter can be three kinds, D ₁Be Φ 111mm ± 1mm, D ₂Be Φ 113mm ± 1mm, D ₃Be Φ 115mm ± 1mm, the dry type thin wall cylinder cover of three kinds of internal diameter C of insert, C ₁Be Φ 108mm ± 1mm, C ₂Be Φ 110mm ± 1mm, C ₃Be Φ 112mm ± 1mm.