CN203796429U - Diesel engine cylinder head - Google Patents

Abstract

The utility model discloses a diesel engine cylinder head. The diesel engine cylinder head comprises a cylinder head body and an oil spraying nozzle. The cylinder head body is provided with a junction surface corresponding to a cylinder barrel end surface on a diesel engine tank. An inlet valve and an exhaust valve are arranged on the junction surface, wherein the inlet valve and the exhaust valve are opposite to a cylinder barrel cylinder hole in the diesel engine tank. A cavity is formed in the other end surface of the cylinder head body. The other port of the inlet valve and the other port of the exhaust valve are located in the cavity. An oil return hole is formed in the cavity, wherein the oil return hole is communicated with the junction surface, and the oil return hole and a cylinder barrel oil return hole in the diesel engine tank are communicated with each other to form oil return lubrication. A 168 diesel engine formed by combining the diesel engine cylinder head, the tank body, a cylinder cover and other components is reasonable in design; the assembled 168 diesel engine is practically applied to water pumping or power generation; compared with a 168 gasoline engine, the fuel consumption of the 168 diesel engine is reduced from 395 g/KW.h to 280 g/KW.h, the use cost is reduced by about 30 percent, the engine rate power is increased from 3.20 KW to 3.50 KW, the power is increased by 9.38 percent, the use is safe, the use cost is reduced remarkably, and the 168 diesel engine is preferred by clients.

Description

Diesel engine cylinder head

Technical field

The utility model relates to a kind of diesel engine cylinder head, belongs to diesel applications technical field, is specifically related to the cylinder head on a kind of diesel engine that can be used for substituting traditional 168 petrol engine.

Background technique

At present, adopt 168 petrol engines outfit water pumps or motor to can be used for drawing water or generating electricity, in use, because the burning-point of gasoline is low, hold fire hazardous, therefore very high to the configuration requirement of the members such as 168 petrolic fuel tanks, cause cost of material high; And Fuel Consumption of Gasoline Engine is high, can cause customer using cost higher.

In order to reduce oil consumption and user cost, people rethink by diesel engine and substitute traditional petrol engine, and product in present specification is improved on this basis.

Summary of the invention

For above-mentioned deficiency of the prior art, the utility model aims to provide a kind of diesel engine cylinder head, and the parts such as its combination gear chamber cap, casing form a diesel engine, can effectively improve fuel utilization ratio, reduces user cost.

To achieve these goals, the technical solution of the utility model: a kind of diesel engine cylinder head, comprise cylinder head body and oil injecting nozzle, on described cylinder head body, there is the junction surface corresponding with cylinder barrel end face on diesel engine box body, on this junction surface, be provided with the intake valve relative with cylinder barrel cylinder hole on described diesel engine box body, exhaust valve, on the other end of described cylinder head body, there is cavity, and described intake valve, exhaust valve another port is in this cavity, in described cavity, have and be communicated to described junction surface and be connected and form the spill port of oil-return lubrication with the cylinder barrel spill port on described diesel engine box body.

Further, between described spill port and described junction surface, be the angle of 70 ° ± 1 °.

Further, on described cylinder head body, correspondence is provided with the intake duct, the air outlet flue that are connected with described intake valve, exhaust valve respectively, this intake duct, air outlet flue are divided into the both sides of described intake valve, the exhaust valve line of centres, and form the angle of 5 °～10 ° between this intake duct, air outlet flue.

Further, the cross section of described intake duct, air outlet flue is style of the shoe; The transitional surface that is connected between this intake duct, air outlet flue correspondence and described intake valve, exhaust valve is inclined-plane.

Further, the second stomidium that described oil injecting nozzle comprises first stomidium relative with described diesel engine box body cylinder barrel, is connected with diesel engine oil pump, this first stomidium is connected by being located at the intrinsic sphere of described cylinder head chamber with the second stomidium.

Further, in described cylinder head body, be provided with and be communicated to outside ventilation flue, this ventilation flue is between described intake valve, exhaust valve.

The beneficial effects of the utility model: petrolic tradition 168 cylinder head is improved, make the component combinations such as this product and casing, gear chamber cover form 168 diesel engine, reasonable in design, there is plurality of advantages than petrol engine, such as burning-point is higher, deposit or using process in can not cause fire; Compression ratio is large, the easier atomization of fuel oil, fuel oil effective rate of utilization advantages of higher, during 168 diesel engine that this Product Assembly becomes are applied to draw water or generate electricity, than 168 petrol engines, oil consumption is down to 280g/KW.h by 395g/KW.h, and user cost reduces by 30% left and right, and engine power rating is increased to 3.50KW by 3.20KW, power improves 9.38%, use safety, user cost significantly reduces simultaneously, favored by client.

Brief description of the drawings

In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.

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

Fig. 2 is the left view of Fig. 1;

Fig. 3 is the right elevation of Fig. 2;

Fig. 4 is the sectional view along A-A line in Fig. 1;

Fig. 5 is the sectional view along N-N line in Fig. 1;

Fig. 6 is the sectional view along F-F line in Fig. 2;

Fig. 7 is the rear view of Fig. 1;

Fig. 8 is the sectional view along H-H line in Fig. 7.

Embodiment

Further describe the utility model below in conjunction with specific embodiment and accompanying drawing.

A kind of diesel engine cylinder head as described in Fig. 1-8, it comprises cylinder head body 10 and oil injecting nozzle 40, on described cylinder head body 10, there is the junction surface 16 corresponding with cylinder barrel end face on diesel engine box body, on this junction surface 16, be provided with the intake valve 20 relative with cylinder barrel cylinder hole on described diesel engine box body, exhaust valve 30, on the other end of described cylinder head body 10, there is cavity 13, and described intake valve 20, exhaust valve 30 another port are in this cavity 13, in described cavity 13, have and be communicated to described junction surface 16 and be connected and form the spill port 12 of oil-return lubrication with the cylinder barrel spill port on described diesel engine box body.

The utility model is improved petrolic tradition 168 cylinder head, make the component combinations such as this product and casing, cylinder cap form 168 diesel engine, reasonable in design, there is plurality of advantages than petrol engine, such as burning-point is higher, deposit or using process in can not cause fire; Compression ratio is large, the easier atomization of fuel oil, fuel oil effective rate of utilization advantages of higher, during 168 diesel engine that this Product Assembly becomes are applied to draw water or generate electricity, than 168 petrol engines, oil consumption is down to 280g/KW.h by 395g/KW.h, and user cost reduces by 30% left and right, and engine power rating is increased to 3.50KW by 3.20KW, power improves 9.38%, use safety, user cost significantly reduces simultaneously, favored by client.

Wherein said junction surface 16 is provided with the protruding circular column 11 matching with described diesel engine cylinder barrel cylinder hole, as shown in Figure 7, described intake valve 20, exhaust valve 30 ports are in this protruding circular column 11, and described oil injecting nozzle 40 ports are between this protruding circular column 11 and described junction surface 16.And described spill port 12 ports are not on described junction surface 16 and in described protruding circular column 11.

By the intake valve 20 in cavity 13, exhaust valve 30 correspondingly form or be installed into valve seat insert, exhaust valve valve seat provides air inlet, exhaust to form to whole diesel engine normal operation.This cavity 13 can be protected by lid, avoids dust to enter valve and affects the normal work of each parts, avoids operator's misoperation simultaneously and has an accident.Described spill port 12, for the each parts in cavity 13 and diesel engine box body cylinder barrel are carried out to oil-return lubrication, to improve the working life of each parts, and is led back recycling by unnecessary lubricant oil, to improve the utilization ratio of lubricating oil.

In this example, by the angle setting that is 70 ° ± 1 ° between described spill port 12 and described junction surface 16, cylinder barrel spill port on itself and described diesel engine box body is connected, and then ensures lubricating oil to the normal lubricated of each parts and unnecessary lubricating oil is carried out to recycling.

As shown in Fig. 1,4,8, on described cylinder head body 10, correspondence is provided with the intake duct 21, the air outlet flue 31 that are connected with described intake valve 20, exhaust valve 30 respectively, this intake duct 21, air outlet flue 31 are divided into the both sides of described intake valve 20, exhaust valve 30 lines of centres, this intake duct 21, air outlet flue 31 is approximate parallel, and forms the angle of 5 °～10 ° between this intake duct 21, air outlet flue 31.Described air outlet flue 31 is by external silencing apparatus, noise pollution while normally work to reduce diesel engine, in order to make the circulate of whole intake duct 21, air outlet flue 31, and the space that the overall structure between air outlet flue 31 and silencing apparatus is taken is the least possible, in this example, described angle is preferably to 8 °.

The cross section of described intake duct 21, air outlet flue 31 is style of the shoe, as Fig. 2,3, and this intake duct 21, air outlet flue 31 corresponding with described intake valve 20, exhaust valve 30 between the transitional surface 22,32 that is connected be inclined-plane, as shown in Figure 4, make the gas communication direction on intake duct 21, air outlet flue 31 corresponding consistent with the operative orientation of intake valve 20, exhaust valve 30, and then ensure that each gas is in the circulate of intake duct 21, air outlet flue 31.

For oil injecting nozzle 40, as shown in Figure 5, this oil injecting nozzle 40 is chewed for high pressure fuel injector, it is by after being installed on oil pump on diesel engine box body and pressurizeing, be connected to this oil injecting nozzle 40 by pipeline again, the second stomidium 42 that this oil injecting nozzle 40 comprises first stomidium 41 corresponding with described diesel engine box body cylinder barrel, is connected with the oil pump pipeline on diesel engine, this first stomidium 41 is connected by the sphere chamber 43 of being located in described cylinder head body 10 with the second stomidium 42, and described sphere chamber 43 is for installing fuel oil shower nozzle.

Finally, in described cylinder head body 10, be provided with and be communicated to outside ventilation flue 14, this ventilation flue 14 is between described intake valve 20, exhaust valve 30, and this ventilation flue 14 is for reducing the temperature of whole cylinder head body 10, avoids oil injecting nozzle 40 overheated and affect the normal work of whole diesel engine.

The technological scheme above the utility model embodiment being provided is described in detail, applied principle and the mode of execution of specific case to the utility model embodiment herein and set forth, above embodiment's explanation is only applicable to help to understand the utility model embodiment's principle; , for one of ordinary skill in the art, according to the utility model embodiment, in embodiment and application area, all will change, in sum, this description should not be construed as restriction of the present utility model meanwhile.

Claims (6)

1. a diesel engine cylinder head, comprise cylinder head body (10) and oil injecting nozzle (40), it is characterized in that: on described cylinder head body (10), there is the junction surface (16) corresponding with cylinder barrel end face on diesel engine box body, on this junction surface (16), be provided with the intake valve (20) relative with cylinder barrel cylinder hole on described diesel engine box body, exhaust valve (30), on the other end of described cylinder head body (10), there is cavity (13), and described intake valve (20), exhaust valve (30) another port is in this cavity (13), in described cavity (13), have to be communicated to described junction surface (16) and to be connected with the cylinder barrel spill port on described diesel engine box body and form the spill port (12) of oil-return lubrication.

2. diesel engine cylinder head according to claim 1, is characterized in that: between described spill port (12) and described junction surface (16), be the angle of 70 ° ± 1 °.

3. diesel engine cylinder head according to claim 1, it is characterized in that: on described cylinder head body (10), correspondence is provided with the intake duct (21), the air outlet flue (31) that are connected with described intake valve (20), exhaust valve (30) respectively, this intake duct (21), air outlet flue (31) are divided into the both sides of described intake valve (20), exhaust valve (30) line of centres, and form the angle of 5 °～10 ° between this intake duct (21), air outlet flue (31).

4. diesel engine cylinder head according to claim 3, is characterized in that: the cross section of described intake duct (21), air outlet flue (31) is style of the shoe; The transitional surface (22,32) that is connected between this intake duct (21), air outlet flue (31) correspondence and described intake valve (20), exhaust valve (30) is inclined-plane.

5. diesel engine cylinder head according to claim 1, it is characterized in that: described oil injecting nozzle (40) comprises first stomidium (41) relative with described diesel engine box body cylinder barrel, the second stomidium (42) being connected with diesel engine oil pump, this first stomidium (41) is connected by the sphere chamber (43) of being located in described cylinder head body (10) with the second stomidium (42).

6. diesel engine cylinder head according to claim 1, is characterized in that: in described cylinder head body (10), be provided with and be communicated to outside ventilation flue (14), this ventilation flue (14) is between described intake valve (20), exhaust valve (30).