Diesel engine cylinder head

Abstract

The utility model relates to a part of a diesel engine, in particular to a diesel engine cylinder head which comprises a cylinder head body, a rocker arm chamber is arranged on one face of the cylinder head body, a valve hole is formed in the other face of the cylinder head body, an exhaust gas channel is arranged on the cylinder head body, one end of the exhaust gas channel is communicated with the rocker arm chamber, and the other end of the exhaust gas channel is communicated with a crankcase. By arranging the through waste gas channel on the cylinder head, waste gas in the box body can be effectively exhausted, the failure rate of the diesel engine can be reduced, and the service life of the diesel engine can be prolonged.

Description

Technical Field

[0001] The utility model relates to parts of a diesel engine, in particular to a cylinder head of a diesel engine. Background Art

[0002] The main structure of a diesel engine consists of a casing and a cylinder head, which houses the crankcase and cylinders. During operation, exhaust gas is generated in the cylinders due to incomplete fuel combustion. This exhaust gas leaks through the piston rings inside the cylinders and into the crankcase. Existing technology uses valve pushrod holes to discharge this exhaust gas, but this is inefficient, affecting the normal operation of the crankcase and reducing the overall service life of the diesel engine. Utility Model Content

[0003] The utility model aims to provide a diesel engine cylinder head which can improve the exhaust gas efficiency of the diesel engine and thus prolong the overall service life of the diesel engine.

[0004] A diesel engine cylinder head in this solution includes a cylinder head body, one side of the cylinder head body is provided with a rocker chamber and the other side is provided with a valve hole. An exhaust duct is provided on the cylinder head body, one end of the exhaust duct is connected to the rocker chamber and the other end is connected to the crankcase.

[0005] Furthermore, the exhaust duct is arranged on one side of the cylinder head body, one end of the exhaust duct is opened to the bottom surface of the rocker arm chamber, close to the intake valve spring seat, and the other end of the exhaust duct is opened to the surface of the cylinder head body, close to the valve hole.

[0006] Furthermore, the exhaust passage is a linear passage that passes through the cylinder head body.

[0007] Furthermore, an air intake passage is provided on one side of the cylinder head body, and the air intake passage is connected to the valve hole.

[0008] Furthermore, the exhaust duct is arranged below the air inlet duct.

[0009] Furthermore, the air intake duct is connected to the valve hole via a volute spiral channel.

[0010] The advantages of this utility model are that the exhaust duct provided on the cylinder head body can continuously discharge the combustion exhaust gas in the crankcase through the exhaust duct to the rocker arm chamber and then to the outside. This timely removes the combustion exhaust gas from the diesel engine, preventing it from affecting other components, reducing the failure rate, and extending the service life of the diesel engine. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a three-dimensional diagram of a diesel engine cylinder head according to the present invention;

[0012] Figure 2This is a front view of a diesel engine cylinder head according to the present invention;

[0013] Figure 3 This is a rear view of a diesel engine cylinder head according to the present invention;

[0014] Figure 4 This is a top view of a diesel engine cylinder head according to the present invention;

[0015] Figure 5 for Figure 4 Cross-sectional view of AA in the figure.

[0016] In the figure, 1 is the rocker arm chamber, 1-1 is the valve push rod hole, 1-2 is the intake valve spring seat, 1-3 is the rocker arm support, 2 is the valve hole, 3 is the exhaust duct, 4 is the intake duct, and 5 is the volute spiral channel. DETAILED DESCRIPTION

[0017] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0018] according to Figures 1 to 5 As shown, the present invention provides a diesel engine cylinder head, comprising a cylinder head body, with a rocker arm chamber 1 on one side and a valve hole 2 on the other side. The rocker arm chamber 1 includes a valve pushrod hole 1-1, an intake valve spring seat 1-2, and a rocker arm support 1-3. The cylinder head body is provided with an exhaust duct 3, which is a linear passage extending through the cylinder head body. The exhaust duct 3 removes combustion exhaust gases from the crankcase within the housing.

[0019] One end of the exhaust duct 3 connects to the rocker chamber 1, and the other end connects to the crankcase. In this embodiment, the exhaust duct 3 is located on one side of the cylinder head body. One end of the exhaust duct 3 opens to the bottom surface of the rocker chamber 1, near the intake valves 1-2, and the other end of the exhaust duct 3 opens to the surface of the cylinder head body, near the valve hole 2. The exhaust duct 3 and the valve hole 2 are both located on the surface of the cylinder head body.

[0020] As a further improvement of this embodiment, an air intake duct 4 is provided on one side of the cylinder head body, and the air intake duct 4 is connected to the valve hole 2 .

[0021] Specifically, the exhaust duct 3 is arranged below the intake duct 4. The exhaust duct and the intake duct 4 have intake directions perpendicular to each other. The intake duct 4 is connected to the valve hole 2 through a volute spiral channel 5.

[0022] The main components of a diesel engine include a cylinder block, a cylinder liner, and a cylinder head. The cylinder liner is located between the cylinder block and the cylinder head, connecting them. An exhaust duct 3 is provided on the cylinder head, continuously discharging combustion exhaust gases from the cylinders through the duct to the cylinder head cover above the rocker arm chamber 1. A breather on the cylinder head cover connects to the intake duct, drawing the exhaust gases into the cylinders for combustion. This ensures that combustion exhaust gases are promptly removed from the engine, preventing them from affecting other components, reducing failure rates, and increasing the engine's service life.

[0023] The above description is merely an embodiment of the present invention. The well-known specific structures and characteristics of the scheme are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of the present invention. These modifications and improvements should also be considered within the scope of protection of the present invention and will not affect the effectiveness of the implementation of the present invention or the practical application of the patent.

Claims

1. A diesel engine cylinder head, comprising a cylinder head body, wherein one side of the cylinder head body is provided with a rocker chamber (1) and the other side of the cylinder head body is provided with a valve hole (2), characterized in that: An exhaust duct (3) is provided on the cylinder head body, one end of the exhaust duct (3) is connected to the rocker chamber (1), and the other end is connected to the crankcase.

2. A diesel engine cylinder head according to claim 1, characterized in that: The exhaust duct (3) is arranged on one side of the cylinder head body, one end of the exhaust duct (3) is opened to the bottom surface of the rocker arm chamber (1) and close to the intake valve spring seat (1-2), and the other end of the exhaust duct (3) is opened to the surface of the cylinder head body and close to the valve hole (2).

3. A diesel engine cylinder head according to claim 1, characterized in that: The exhaust passage (3) is a linear passage that passes through the cylinder head body.

4. A diesel engine cylinder head according to claim 1, 2 or 3, characterized in that: An air intake passage (4) is provided on one side of the cylinder head body, and the air intake passage (4) is connected to the valve hole (2).

5. A diesel engine cylinder head according to claim 4, characterized in that: The exhaust duct (3) is arranged below the air inlet duct (4).

6. A diesel engine cylinder head according to claim 4, characterized in that: The air inlet (4) is connected to the valve hole (2) via a volute spiral channel (5).

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