A cylinder body structure

Abstract

The present invention discloses a cylinder block structure, which relates to the technical field of diesel engines, and comprises a cylinder block body and two or more cylinder holes (1) located on the cylinder block body, wherein a sealing surface (7) is arranged on the end surface of the cylinder hole (1) on the cylinder block body, and adjacent cylinder holes (1) are connected to each other. The device provided by the present invention solves the problem that the cylinder block cylinder hole processing structure is difficult and is not conducive to oil-gas balance.

Description

Technical Field

[0001] The invention relates to the technical field of diesel engines, and in particular to a cylinder body structure. Background Art

[0002] As social and economic activities increase the requirements for vehicle power, economy, adaptability, etc., the lightweight, safety, applicability, assembly, and maintainability of vehicles and their components have become a direction of improvement that has received widespread attention. The existing diesel engine cylinder block has a circular cylinder bore structure, and the traditional cylinder bore has a single shape and thick materials. It is not only heavy in weight, but also requires many precision machining surfaces, so that the tool is easily worn during machining. Slightly unqualified dimensional processing will cause the cylinder bore to be easily deformed after the cylinder liner is installed, affecting the engine performance and reliability. Moreover, when the engine is working, the lubrication system will produce oil mist in the crankcase and valve chamber. At the same time, due to the slight leakage of cylinder air pressure, oil and gas with a certain pressure will be formed in the engine cavity. Therefore, the traditional engine crankcase and cylinder head valve chamber will have a channel connecting them to allow the oil and gas to flow and balance, and then connect to the breathing system. The traditional engine has a channel on the cylinder block, but due to the limitation of the circular cylinder hole structure, there is no channel between cylinders. It is only connected by the cylinder block crankcase group (above the oil pan). The channel is not large enough, which can easily cause oil and gas imbalance problems, which is not conducive to the oil and gas balance inside the engine. Summary of the invention

[0003] In view of the problems existing in the prior art, the present invention provides a cylinder block structure to solve the problem that the cylinder block cylinder bore machining structure is difficult and is not conducive to oil-gas balance.

[0004] To achieve the above-mentioned object of the invention, the technical solution of the present invention is as follows:

[0005] A cylinder block structure comprises a cylinder block body and two or more cylinder holes on the cylinder block body. Sealing surfaces are arranged on the end faces of the cylinder holes on the cylinder block body, and adjacent cylinder holes are connected to each other.

[0006] Furthermore, a corresponding tappet cavity in communication with the cylinder hole is arranged on the same side of each cylinder hole on the sealing surface, and adjacent tappet cavities are in communication with each other.

[0007] Furthermore, bolt mounting holes are provided on both sides of the communicating portion of the adjacent cylinder holes.

[0008] Furthermore, transverse reinforcing ribs are provided at the communicating portion between adjacent cylinder holes along the direction of the center line of the bolt mounting holes.

[0009] Compared with the prior art, the present invention has the following beneficial effects:

[0010] 1. The cylinder block structure provided by the present invention has adjacent cylinder holes in the cylinder block body connected to form a first channel that is beneficial to oil-gas balance; at the same time, this structure does not require fine machining of the cylinder hole, does not require installation of the cylinder liner, avoids the trouble of installing the cylinder liner, and only reserves the machining of the sealing surface for installation with the cylinder head. The structure is simple, easy to machine, and there is no deformation of the cylinder hole, which greatly facilitates engine assembly and reliability;

[0011] 2. The cylinder hole and the configured tappet cavity are connected, and the adjacent tappet cavities are connected. The connected tappet cavities form a second channel that is beneficial to the oil-gas balance. This tappet cavity structure reduces the processing area of ​​the sealing surface, makes the cylinder body processing easier, and also enhances the heat dissipation capacity of the cylinder body and reduces the weight of the cylinder body.

[0012] 3. Transverse reinforcing ribs are arranged in the first passage of adjacent cylinder holes to improve the rigidity of the cylinder body; BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a three-dimensional diagram of the cylinder structure of an embodiment of the present invention;

[0014] Figure 2 A top view of the cylinder structure of an embodiment of the present invention;

[0015] Figure 3 For the present invention Figure 2 BB cross-section diagram in.

[0016] In the figure, 1-cylinder hole, 2-first sealing ring, 3-tappet cavity, 4-second sealing ring, 5-bolt mounting hole, 6-reinforcement rib, 7-sealing surface. DETAILED DESCRIPTION

[0017] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is a description of the embodiments in conjunction with the accompanying drawings.

[0018] like Figure 1 This is a three-dimensional diagram of a cylinder block structure. The cylinder block structure is assembled with a composite cylinder head structure. This structure only provides a cylinder head mounting frame and a sealing surface. Other cylinder liners or cylinder bores are processed on the composite cylinder head.

[0019] like Figure 2 , Figure 3The cylinder block structure includes a cylinder block body and four cylinder holes 1 and bolt mounting holes 5 on the cylinder block body. The bolt mounting holes 5 are used to connect the composite cylinder head and the cylinder block structure. A sealing surface 7 is provided on the end surface of the cylinder hole 1 on the cylinder block body. Adjacent cylinder holes 1 are interconnected to form a first channel that is beneficial to oil-gas balance. This structure does not require fine machining of the cylinder hole, does not require installation of the cylinder liner, avoids the trouble of installing the cylinder liner, and only reserves the machining of the sealing surface installed with the cylinder head. It has a simple structure, is easy to process, and does not have cylinder hole deformation, which greatly facilitates engine assembly and reliability.

[0020] A corresponding tappet cavity 3 connected to the cylinder hole 1 is arranged on the sealing surface 7 on the same side of each cylinder hole 1, and adjacent tappet cavities 3 are connected to each other. The connected tappet cavities 3 form a second channel that is beneficial to oil-gas balance. This tappet cavity 3 structure reduces the finishing area of ​​the sealing surface, makes cylinder body processing easier, enhances the heat dissipation capacity of the cylinder body, and reduces the weight of the cylinder body.

[0021] The outer edge of the revolving surface of each cylinder hole 1 is provided with a first sealing ring 2 for sealing the cylinder hole 1 , and the outer edge of the revolving surface of each tappet cavity 3 is provided with a second sealing ring 4 for sealing the tappet cavity 3 .

[0022] As a preferred solution, a transverse reinforcing rib 6 is provided in the first channel between the adjacent cylinder holes 1, which can improve the rigidity of the cylinder body. In this embodiment, bolt mounting holes 5 are provided on both sides of the connecting portion of the adjacent cylinder holes 1, and the reinforcing rib 6 is just located at the center line of the bolt mounting holes 5 on both sides, which can further avoid stress deformation of the bolt mounting holes 6 of the cylinder body.

[0023] Although the present invention has been described in detail above with specific embodiments, it is obvious to those skilled in the art that some modifications or improvements can be made to the present invention. Therefore, these modifications or improvements made without departing from the spirit of the present invention all belong to the scope of protection claimed by the present invention.

Claims

1. A cylinder block structure, comprising a cylinder block body and two or more cylinder holes (1) located on the cylinder block body, characterized in that: A sealing surface (7) is provided on the end surface of the cylinder hole (1) on the cylinder body, and adjacent cylinder holes (1) are connected to each other; a corresponding tappet cavity (3) connected to the cylinder hole (1) is also arranged on the same side of each cylinder hole (1) on the sealing surface (7), and adjacent tappet cavities (3) are connected to each other; bolt mounting holes (5) are provided on both sides of the connecting portion of adjacent cylinder holes (1); transverse reinforcing ribs (6) are provided along the center line direction of the bolt mounting holes (5) at the connecting portion of adjacent cylinder holes (1); a first sealing ring (2) for sealing the cylinder hole (1) is provided on the outer edge of the rotating surface of each cylinder hole (1), and a second sealing ring (4) for sealing the tappet cavity (3) is provided on the outer edge of the rotating surface of each tappet cavity (3).

Images