CN110056446B

CN110056446B - Engine cylinder cover and vehicle

Info

Publication number: CN110056446B
Application number: CN201910433007.5A
Authority: CN
Inventors: 梁代飞
Original assignee: Shenzhen Zhenyu New Energy Power Technology Co Ltd
Current assignee: Shenzhen Zhenyu New Energy Power Technology Co Ltd
Priority date: 2019-05-23
Filing date: 2019-05-23
Publication date: 2021-03-30
Anticipated expiration: 2039-05-23
Also published as: CN110056446A

Abstract

The application discloses engine cylinder lid and vehicle, the engine cylinder lid is equipped with: a tappet mounting hole for installing camshaft hole of camshaft, be used for installing high-pressure oil pump tappet, the engine cylinder lid still is equipped with: an oil inlet channel, an oil storage tank and an oil supply channel; the oil storage groove is formed in the inner wall surface of the camshaft hole, the oil inlet channel is communicated with the oil storage groove, and the oil supply channel is connected between the oil storage groove and the tappet mounting hole. The utility model provides an engine cylinder lid can lubricate tappet hole through the other camshaft hole's of tappet mounting hole other lubricating oil, need not arrange the lubrication oil duct alone for high-pressure oil pump, and makes the stability and the continuation that provide lubricating oil be guaranteed through setting up the oil storage tank.

Description

Engine cylinder cover and vehicle

Technical Field

The application belongs to the technical field of vehicle manufacturing, and particularly relates to an engine cylinder cover and a vehicle with the same.

Background

The high-pressure oil pump of the automobile engine generally adopts an electronic type or a mechanical type, the electronic type high-pressure oil pump is complex in structure, the purchase cost and the later maintenance cost are higher, the use popularization rate is not high, the mechanical type high-pressure oil pump is generally arranged at the top of an engine cylinder head cover or the rear end exhaust (or air inlet) side of a cylinder head, a tappet in a high-pressure oil pump assembly is always in high-speed plunger type reciprocating motion in the working process of the engine, friction exists between the tappet and a tappet mounting hole, a large amount of heat can be generated, if a friction pair of the tappet and the tappet cannot be effectively lubricated and radiated, the outer cylindrical surface and the tappet hole of the tappet can be abraded, abnormal sound or failure occurs in the high-pressure oil pump in serious conditions, and the. In the related art, the lubricating oil path efficiency of the tappet is not high, so that partial lubrication failure can be caused, and the normal work of the high-pressure oil pump is influenced.

Content of application

The present application is directed to solving at least one of the problems in the prior art.

According to the engine cylinder lid of the embodiment of this application, engine cylinder lid is equipped with: a tappet mounting hole for installing camshaft hole of camshaft, be used for installing high-pressure oil pump tappet, the engine cylinder lid still is equipped with: an oil inlet channel, an oil storage tank and an oil supply channel; the oil storage groove is formed in the inner wall surface of the camshaft hole, the oil inlet channel is communicated with the oil storage groove, and the oil supply channel is connected between the oil storage groove and the tappet mounting hole.

The engine cylinder lid of this application embodiment can lubricate the tappet hole through the other camshaft hole's of tappet mounting hole excretory lubricating oil, need not arrange the lubrication oil duct for the high-pressure oil pump alone, and makes the stability and the continuation that provide lubricating oil guaranteed through setting up the oil storage tank, and simple structure is reliable, and the manufacturing and processing cost of engine cylinder lid is low, helps improving the compactedness of engine structure.

The application also provides a vehicle with the engine cylinder cover.

The vehicle and the engine cylinder cover have the same advantages compared with the prior art, and the detailed description is omitted.

Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.

Drawings

The above and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a partial cross-sectional view of an engine head according to an embodiment of the present application;

FIG. 2 is a partial cross-sectional view of an engine head according to an embodiment of the present application;

FIG. 3 is a partial cross-sectional view of an engine head according to an embodiment of the present application.

Reference numerals:

the engine comprises an engine cylinder head 100, a camshaft hole 101, a camshaft seat 103 and a tile cover 104;

the structure comprises an oil inlet channel 1, an oil inlet main channel 1a, an oil inlet branch channel 1b, an oil storage tank 2, a gap 3, a side wall surface 4, a bottom platform 5, a tappet mounting hole 6, a mounting step 6a, an oil return channel 7 and a cylinder cover oil cavity 8.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.

An engine head 100 according to an embodiment of the present application is described below with reference to fig. 1-3.

As shown in fig. 1-3, the engine cylinder head 100 is provided with a camshaft hole 101 and a tappet mounting hole 6, the camshaft hole 101 is defined by the engine cylinder head 100 and the shoe cover 104, the camshaft hole 101 is used for mounting an engine camshaft, the camshaft hole is used for supporting the camshaft, the tappet mounting hole 6 is used for mounting a tappet of a high-pressure oil pump, the high-pressure oil pump is a mechanical pump, and the tappet mounting hole 6 can be arranged at the rear end of the intake side of the engine cylinder head 100, that is, the high-pressure oil pump mounting structure is arranged at the rear end of the intake side of the engine cylinder head 100.

The engine cylinder head 100 is further provided with: oil inlet 1, oil storage tank 2, confession oil duct. The oil inlet channel 1 is communicated with the oil storage tank 2, one end of the oil inlet channel 1 is used for being connected with an oil supply end, and the other end of the oil inlet channel is used for supplying oil to the oil storage tank 2. The oil reservoir 2 is provided on the inner wall surface of the camshaft hole 101, and the oil reservoir 2 is provided recessed with respect to the camshaft hole 101 for storing lubricating oil, so that the lubricating oil can quickly reach the surface of the friction pair of the camshaft hole during the start-up of the engine. The oil supply passage is connected between the oil storage tank 2 and the tappet mounting hole 6, and the lubricating oil stored in the oil storage tank 2 can be introduced into the tappet mounting hole 6 through the oil supply passage.

It can be understood that because the oil inlet channel 1, the oil storage tank 2 and the oil supply channel which are communicated in sequence are arranged on the engine cylinder cover 100, oil supply to the tappet mounting hole 6 can be realized in the engine cylinder cover 100, effective lubrication between the tappet of the high-pressure oil pump and the tappet mounting hole 6 is ensured, and through designing the structure of the oil storage tank 2, an oil source for relaying of the oil supply channel can be ensured all the time, and the lubricating oil of the tappet mounting hole 6 is ensured not to be interrupted.

The engine cylinder cover 100 of the embodiment of the application can lubricate the tappet hole through the discharged lubricating oil of the other camshaft hole 101 of the tappet mounting hole 6, does not need to arrange a lubricating oil channel for the high-pressure oil pump alone, and makes the stability and the continuity of providing lubricating oil guaranteed through setting up the oil storage tank 2, and simple structure is reliable, and the manufacturing and processing cost of the engine cylinder cover 100 is low, helps improving the compactness of the engine structure.

In some embodiments, as shown in fig. 1 and 2, the oil inlet passage 1 includes: the engine cylinder cover comprises an oil inlet main channel 1a and an oil inlet branch channel 1b, wherein the oil inlet main channel 1a extends along the distribution direction of a plurality of camshaft holes 101 in the engine cylinder cover 100, one end of the oil inlet branch channel 1b is communicated with the oil inlet main channel 1a, and the other end of the oil inlet branch channel extends to an oil storage tank 2 of each camshaft hole 101.

It can be understood that the engine cylinder head 100 is provided with a plurality of camshaft holes 101, each camshaft hole 101 is provided with an oil storage tank 2, each oil storage tank 2 is communicated with an oil inlet main channel 1a through a corresponding oil inlet branch channel 1b, and thus the oil inlet branch channels 1b are connected in parallel, so that lubrication and oil supply of the single oil inlet main channel 1a to the plurality of camshaft holes 101 can be realized, and lubricating oil can quickly reach the surfaces of friction pairs of the camshaft holes 101 in the starting process of the engine.

In actual implementation, as shown in fig. 1 and fig. 2, the diameter of the oil inlet main passage 1a is larger than that of the oil inlet branch passage 1b to ensure the oil supply amount of each oil inlet branch passage 1b, the oil inlet main passage 1a extends in the transverse direction, the oil inlet branch passage 1b extends in the vertical direction, and both the oil inlet main passage 1a and the oil inlet branch passage 1b can be of a straight hole type, so that the processing is convenient, and the pressure loss is small during oil supply.

In some embodiments, as shown in fig. 2, the oil reservoir 2 is provided at a lower portion of the inner wall surface of the camshaft hole 101 and extends upward in the circumferential direction from a lower end of the inner wall surface of the camshaft hole 101, and an upper end of the oil reservoir 2 is lower than a centerline position of the camshaft hole 101 at a vertically upper end. It will be appreciated that the centerline position of the camshaft hole 101 at the vertically upper end is the boundary between the engine head 100 and the shoe cover 104, and the oil reservoir 2 constructed as described above can store more lubricating oil without leakage.

In some embodiments, as shown in fig. 2 and 3, engine head 100 has a camshaft housing 103, camshaft housing 103 being configured to define camshaft bore 101, the oil supply passage comprising, connected in series: the engine cylinder cover comprises a gap 3 between a camshaft hole of an engine cylinder cover 100 and a camshaft, a side wall surface 4 of a camshaft seat 103, and a bottom platform 5 arranged on the side wall surface 4 of the camshaft seat 103, wherein the bottom platform 5 is communicated with a tappet mounting hole 6, and the bottom platform 5 slantly extends downwards from one end connected with the side wall surface 4 of the camshaft seat 103 to one end communicated with the tappet mounting hole 6.

Thus, the lubricating oil drained from the camshaft hole 101 can flow into the bottom platform 5 at the rear end of the tappet mounting hole 6 along the side wall surface 4 at the end part of the camshaft hole 101, and the bottom platform 5 has a certain inclination angle with the horizontal direction, so that the lubricating oil is ensured to flow to the lower part of the platform and further flow to the tappet mounting hole 6.

As shown in fig. 3, the tappet mounting hole 6 is inclined upward from the inlet end to the bottom wall, that is, the tappet mounting hole 6 is inclined downward and opened, and the bottom platform 5 is connected to the lower end of the bottom wall of the tappet mounting hole 6, so that the lubricating oil flowing to the tappet mounting hole 6 can flow from top to bottom through the tappet mounting hole 6, thereby ensuring the lubricating effect of the tappet.

In some embodiments, as shown in fig. 3, the engine head 100 is provided with a head oil chamber 8 and an oil return passage 7, the tappet mounting hole 6 and the head oil chamber 8 are communicated through the oil return passage 7, in actual implementation, a first end of the oil return passage 7 extends to the mounting step 6a at the inlet end of the tappet mounting hole 6, a second end of the oil return passage 7 extends to be communicated with the head oil chamber 8, and the oil return passage 7 extends obliquely downwards from the first end to the second end. By processing a lubricating oil return passage, excessive lubricating oil is prevented from being accumulated at the inlet part of the oil pump to influence the operation of the tappet and the sealing of the tappet mounting hole 6.

The application provides an engine cylinder cover 100 integrating a mechanical high-pressure oil pump mounting structure and a tappet lubricating structure, wherein the high-pressure oil pump mounting structure is arranged at the rear end of the air inlet side of the engine cylinder cover 100, lubricating oil enters an oil inlet branch passage 1b from an oil inlet main passage 1a which extends transversely, the oil inlet branch passage 1b enters an oil storage tank 2 at a camshaft hole 101, the oil storage tank 2 stores a certain amount of lubricating oil, the lubricating oil can quickly reach the friction pair surface of the camshaft hole in a blocking cam shaft in the starting process of an engine, the lubricating oil flows into a side wall surface 4 of a camshaft seat 103 through a gap 3 between a cam and the camshaft hole, the tail end of the high-pressure oil pump is connected with a bottom platform 5, the bottom platform 5 has a certain inclination angle with the horizontal direction, the lubricating oil flowing into the lower part of the bottom platform 5 through the side wall surface 4 is ensured to further flow into a tappet mounting hole 6, an oil return passage 7 with a certain inclination angle with the, excess lubricating oil flows into the cylinder head oil chamber 8 through the oil return channel 7.

The application also discloses a vehicle.

The vehicle according to the present application includes the engine cylinder head 100 and the mechanical high-pressure oil pump according to any of the embodiments described above, the intake-side rear end of the engine cylinder head 100 is provided with the tappet mounting hole 6, and the tappet of the high-pressure oil pump extends into the tappet mounting hole 6. The vehicle of this application can lubricate the tappet hole through the other camshaft hole 101 excretory lubricating oil of tappet mounting hole 6, need not arrange the lubricating oil duct alone for the high-pressure oil pump.

In the description herein, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the application, the scope of which is defined by the claims and their equivalents.

Claims

1. An engine cylinder head, characterized in that, the engine cylinder head is equipped with: a tappet mounting hole for installing camshaft hole of camshaft, be used for installing high-pressure oil pump tappet, the engine cylinder lid still is equipped with: an oil inlet channel, an oil storage tank and an oil supply channel;

the oil storage tank is arranged on the inner wall surface of the camshaft hole, the oil inlet channel is communicated with the oil storage tank, and the oil supply channel is connected between the oil storage tank and the tappet mounting hole;

the engine cylinder head has a camshaft seat for defining the camshaft bore, the oil supply passage includes, connected in sequence: the tappet mounting structure comprises a gap between a camshaft hole of the engine cylinder cover and a camshaft, a side wall surface of the camshaft seat and a bottom platform arranged on the side wall surface of the camshaft seat, wherein the bottom platform is communicated with the tappet mounting hole;

the oil storage tank is arranged at the lower part of the inner wall surface of the camshaft hole and extends upwards from the lower end of the inner wall surface of the camshaft hole along the circumferential direction, and the upper end of the oil storage tank is lower than the center line position of the camshaft hole at the vertical upper end.

2. The engine head as set forth in claim 1, characterized in that said oil intake passage includes: the oil inlet main channel extends along the distribution direction of the plurality of camshaft holes in the engine cylinder cover, one end of the oil inlet branch channel is communicated with the oil inlet main channel, and the other end of the oil inlet branch channel extends to the oil storage tank of each camshaft hole.

3. The engine cylinder head of claim 2, wherein the main oil inlet gallery extends in a transverse direction and the branch oil inlet gallery extends in a vertical direction.

4. The engine head as defined in claim 1 wherein said bottom platform extends downwardly from an end connected to a side wall surface of said camshaft base to an end communicating with said tappet mounting hole.

5. The engine head as defined in claim 1, wherein said tappet mounting hole extends obliquely upward from an inlet end to a bottom wall, and said bottom platform is connected to a lower end of the bottom wall of said tappet mounting hole.

6. The engine cylinder head according to any one of claims 1 to 3, characterized in that the engine cylinder head is provided with a cylinder head oil chamber and an oil return passage, through which the tappet mounting hole and the cylinder head oil chamber communicate.

7. The engine head as set forth in claim 6 wherein said oil gallery extends at a first end to a mounting step at an inlet end of said tappet mounting hole and at a second end to communicate with said head chamber, said oil gallery extending downwardly from said first end to said second end.

8. A vehicle, characterized by an engine head according to any of claims 1-7.