CN204253198U - There is the cylinder block of staggered form water channel - Google Patents

Abstract

The utility model discloses a cylinder body with a cross-type water channel, which comprises a cylinder body and a plurality of cylinder holes arranged longitudinally along the cylinder body; each cylinder body is provided with a front water tank arranged around the cylinder hole in the cylinder wall. The water jacket and the rear water jacket; there is a cross water channel between the two adjacent cylinder holes; the front water jacket and the rear water jacket communicate with the top surface of the cylinder body through the cross water channel, and the The cylinders are connected to each other, so that the cylinder bore has both better cooling effect and better rigidity of the engine block, so as to reduce the PM emission of the engine.

Description

Cylinder block with cross water channels

technical field

The utility model relates to the field of engine components, in particular to a cylinder block with crossed water channels.

Background technique

The impact of automobile exhaust on human health has been paid more and more attention worldwide, so the emission limits of automobiles stipulated by the emission regulations of various countries are becoming more and more strict. Compared with gasoline engines, the content of particulates (PM) in diesel engine emissions is relatively high. In addition to the incomplete combustion of fuel, PM also comes from the combustion of lubricating oil. The amount of PM produced by the combustion of lubricating oil is closely related to the deformation of the cylinder bore. The deformation of the cylinder hole will cause the piston ring to not seal the cylinder hole tightly. On the one hand, it will make it easier for the engine oil to escape from the oil ring into the combustion chamber for combustion; amount increased. Considering the structural design of the cylinder body, the deformation of the cylinder bore during the working process is closely related to the design of the water jacket around the cylinder bore. The more ribs in the water jacket that support and strengthen the cylinder bore, the less likely the cylinder bore will be deformed. Traditionally, for the cooling of the cylinder bores, a water jacket is designed between two adjacent cylinder bores. However, this design reduces the thickness of the cylinder wall near the water jacket between the two cylinders, reduces the connection stiffness between the cylinder bore and other parts of the cylinder block, causes a large amount of deformation of the cylinder bore during the working process, and limits the PM emission. further decrease.

Therefore, in order to solve the above problems, an engine block with better cooling effect and better rigidity is needed to reduce the PM emission of the engine.

Utility model content

In view of this, the purpose of this utility model is to overcome the defects in the prior art and provide an engine cylinder block with better cooling effect and better rigidity in the cylinder bore.

The cylinder block with intersecting water channels of the utility model includes a cylinder body and a plurality of cylinder holes arranged longitudinally along the cylinder body; the cylinder wall of each cylinder body is provided with a front water jacket and a rear water jacket arranged around the cylinder hole. A water jacket; a cross water channel communicating with each other is provided between two adjacent cylinder holes; the front water jacket and the rear water jacket communicate with the top surface of the cylinder body through the cross water channel;

Further, the cross type includes a first water channel and a second water channel whose axes intersect with each other, and the upper ends of the first water channel and the second water channel are equipped with a trumpet-shaped water collection port with the flaring upward;

Further, the bottom of the cylinder body is provided with a main bearing seat for installing the main bearing of the engine, and the main bearing seat is fixed with a bearing seat insert that matches the hole of the main bearing seat; The matching arc surface of the bearing outer ring;

Further, overlapping platforms are provided on both radial sides of the bearing seat insert;

Further, the rear side of the cylinder body is provided with an integrated installation platform for installing the water pump and the oil filter; the integrated installation platform is provided with a water inlet, a water outlet, an oil inlet and an oil outlet, and the integrated installation platform There are also mounting holes for the water pump and oil filter on the top.

The beneficial effects of the utility model are: the utility model has a cylinder block with cross-type water channels, since the adjacent cylinder holes are located above the water jacket and are rigidly connected through the cylinder wall, so as to improve the connection strength between the cylinder holes and other parts of the cylinder body , to reduce the deformation of the cylinder bore during the working process. On the other hand, the length of the cross water channel is relatively long, and the cooling area is relatively large. In addition, the cross water channel connects the front water jacket and the rear water jacket, so that the front water jacket and the rear water jacket Heat exchange can be performed between the water jackets to ensure that the cooling system can cool the cylinder evenly. Therefore, there are cross water channels in the cylinder wall above the water jacket, which can not only ensure the structural rigidity of the cylinder, but also better control the cylinder body. The cylinder block is cooled.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described:

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the structural representation of the integrated installation platform of the present utility model;

Fig. 3 is a structural schematic diagram of the main bearing housing of the present invention.

Detailed ways

Fig. 1 is a structural schematic diagram of the utility model; Fig. 2 is a structural schematic diagram of the integrated installation platform of the utility model; Fig. 3 is a structural schematic diagram of the main bearing seat of the utility model. As shown in the figure, the cylinder block with cross-type water channel 3 in this embodiment includes a cylinder body and a plurality of cylinder holes arranged longitudinally along the cylinder body; The front water jacket 1 and the rear water jacket 4 are provided; a cross water channel 3 is provided between two adjacent cylinder holes; the front water jacket 1 and the rear water jacket 4 pass through the cross water channel 3 and the top surface of the cylinder body Connected and the front water jacket 1 and the rear water jacket 4 are connected with each other. Since the adjacent cylinder holes are located above the water jacket and are rigidly connected by the cylinder wall, the connection strength between the cylinder hole and other parts of the cylinder body can be improved, and the cylinder hole can be reduced. On the other hand, the cylinder wall above the water jacket is provided with cross water channels, which can better cool the cylinder body.

In this embodiment, the cross type includes a first water channel and a second water channel whose axes intersect with each other. The upper ends of the first water channel and the second water channel are equipped with a trumpet-shaped water collection port 2 with the flaring upward, which can avoid The coolant in the water jacket of the cylinder body and the water jacket of the cylinder head infiltrates into the joint surface of the cylinder body and the cylinder head during the exchange process.

In this embodiment, the bottom of the cylinder body is provided with a main bearing seat for installing the main bearing of the engine, and the main bearing seat is fixed with a bearing seat insert 9 matching the hole of the main bearing seat; the bearing seat insert 9 There is an arc surface matching the outer ring of the main bearing. Since the main bearing seat of the engine will be subjected to a large compressive stress of the main bearing during the working process, an alloy material with high strength and hardness is used as the inlay of the bearing seat. Part 9 is fixed on the main bearing seat so that the lower half of the outer ring of the main bearing is in contact with the bearing seat insert 9 to increase the support rigidity of the main bearing seat. On the other hand, the bearing seat insert 9 further improves the The structural rigidity of the crankshaft makes the deformation of the cylinder bore smaller during the operation of the crankshaft, which further reduces the PM emission.

In this embodiment, the radial sides of the bearing seat insert 9 are provided with overlapping platforms 10, and the overlapping platforms 10 increase the contact area between the bearing seat insert 9 and the main bearing seat 11, which is conducive to the uniform distribution of compressive stress On the main bearing seat 11, the reliability of the connection between the bearing seat insert 9 and the main bearing seat 11 is also increased.

In this embodiment, the rear side of the cylinder body is provided with an integrated installation platform for installing the water pump and the oil filter; the integrated installation platform is provided with a water inlet 8, a water outlet 7, an oil inlet 6 and an oil outlet Port 5, the integrated installation platform also has installation holes for installing the water pump and oil filter. The integrated installation platform makes the assembly of the engine more convenient and improves the production efficiency of the engine.

Finally, it is noted that the above embodiments are only used to illustrate the technical solutions of the present utility model without limitation. Although the utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the utility model can be Modifications or equivalent replacements of the technical solutions without departing from the purpose and scope of the technical solutions of the utility model shall be covered by the claims of the utility model.

Claims (5)

1. there is a cylinder block for staggered form water channel, it is characterized in that: the multiple casing bores comprising cylinder body body and longitudinally arrange along cylinder body body; The front water jacket and rear water jacket that arrange around casing bore is provided with in the casing wall of each described cylinder body body; The staggered form water channel be interconnected is provided with between adjacent two described casing bores; Described front water jacket is communicated with cylinder body body end face by this staggered form water channel with rear water jacket.

2. the cylinder block with staggered form water channel according to claim 1, is characterized in that: described staggered form water channel comprises cross one another first water channel of axis and the second water channel; Described first water channel and the second water channel upper end are equipped with enlarging horn-like inlet upward.

3. the cylinder block with staggered form water channel according to claim 2, is characterized in that: described cylinder body body bottom portion is provided with the main bearing seat for installing main bearing of engine; Described main bearing seat is fixed with the bearing support mold insert matched with main bearing seat bore; Described bearing support mold insert is provided with the arc surface matched with main bearing outer ring.

4. the cylinder block with staggered form water channel according to claim 3, is characterized in that: the radial both sides of described bearing support mold insert are provided with overlap joint platform.

5. the cylinder block with staggered form water channel according to claim 4, is characterized in that: be provided with the integrated form mountion plate for installing water pump and oil filter on rear side of described cylinder body body; Described integrated form mountion plate is provided with water intake, water outlet, filler opening and oil outlet; Described integrated form mountion plate is also provided with the mounting hole for installing water pump and oil filter.