CN113187580A

CN113187580A - Engine

Info

Publication number: CN113187580A
Application number: CN202110526393.XA
Authority: CN
Inventors: 潘洪玉; 郑和瑞; 吴嘉伟; 肖建
Original assignee: Jiangsu Changfa Agricultural Equipment Co Ltd
Current assignee: Jiangsu Changfa Agricultural Equipment Co Ltd
Priority date: 2021-05-14
Filing date: 2021-05-14
Publication date: 2021-07-30

Abstract

The present invention provides an engine, comprising: the chamber cover is provided with a first oil port; the oil pump comprises a high-pressure cavity and is arranged on a chamber cover; the mechanical filter base is arranged at the outer end of the chamber cover and comprises a first oil duct and a first through hole, and the axis of the first oil port is parallel to the axis of the first through hole; the oil filter is arranged at the outer end of the oil filter base and comprises a first oil inlet and a first oil outlet, the first oil outlet is communicated with a first oil port, and an oil path between the first oil outlet and the first oil port penetrates through the first through hole; one end of the first oil duct is communicated with the high-pressure cavity, and the other end of the first oil duct is communicated with the first oil inlet. The machine filter base has the advantages of simple structure, small volume and more compact structure. The filter base is simple to install and good in economical efficiency.

Description

Engine

Technical Field

The invention relates to an engine, in particular to an engine with an oil filter assembly.

Background

In the prior art, an oil outlet channel and a threaded hole are formed in a machine filter base, a fixing bolt with a hollow structure is arranged in the threaded hole, one end of the fixing bolt is provided with a hole and communicated with the oil outlet channel, and the other end of the fixing bolt is communicated with a main oil channel. The structure of the machine filter base is too complex, and the oil inlet channel and the oil outlet channel are both arranged inside the machine filter base. The oil circuit is complicated and tortuous, and the processing requires too many steps and has a complex process. Therefore, there is a need for an engine that overcomes the above-mentioned deficiencies.

Disclosure of Invention

The invention aims to provide an engine provided with an oil filter assembly.

According to an aspect of the present invention, there is provided an engine comprising:

the chamber cover is provided with a first oil port;

the oil pump comprises a high-pressure cavity and is arranged on a chamber cover;

the mechanical filter base is arranged at the outer end of the chamber cover and comprises a first oil duct and a first through hole, and the axis of the first oil port is parallel to the axis of the first through hole;

the oil filter is arranged at the outer end of the oil filter base and comprises a first oil inlet and a first oil outlet, the first oil outlet is communicated with a first oil port, and an oil path between the first oil outlet and the first oil port penetrates through the first through hole;

one end of the first oil duct is communicated with the high-pressure cavity, and the other end of the first oil duct is communicated with the first oil inlet.

Preferably, the oil filter base comprises a first installation part and a second installation part, the first installation part is fixed to the outer end of the oil pump, the oil filter is fixed to the outer end of the second installation part, the first oil duct is arranged on the first installation part, and the first through hole is arranged on the second installation part.

Preferably, the engine filter base further comprises a first plane and a second plane which are arranged in parallel, the first plane and the outer end face of the chamber cover are attached to each other, the second mounting portion is arranged on the second plane, and the engine oil filter is arranged on the outer side of the second plane.

Preferably, the first oil passage comprises a second oil inlet arranged on a first plane and a second oil outlet arranged on a second plane, the second oil inlet is communicated with the high-pressure cavity of the oil pump, and the second oil outlet is communicated with the first oil inlet.

Preferably, an oil storage tank is arranged on the second plane, the oil storage tank surrounds the first through hole, the oil storage tank is communicated with the first oil inlet, and the oil storage tank is communicated with the second oil outlet.

Preferably, the engine further comprises a first connecting pipe, one end of the first connecting pipe is fixed and communicated with the first oil outlet, the first connecting pipe is arranged in the first through hole, the other end of the first connecting pipe is fixed and communicated with the first oil port, and the first oil outlet is communicated with the first oil port through the first connecting pipe.

Preferably, a first sealing ring is arranged between the second plane and the oil filter, the first sealing ring surrounds the oil storage tank, the second oil outlet is located in the first sealing ring, a second sealing ring is arranged around the first oil port, and a third sealing ring is arranged on the outer side of the oil pump in the circumferential direction.

Preferably, the first oil passage comprises a first counter bore which extends from the second oil inlet to the second plane perpendicular to the first plane and a second counter bore which extends from the second oil outlet to the first plane perpendicular to the second plane, the first counter bore and the second counter bore are eccentrically arranged, and the first counter bore is communicated with the second counter bore.

Preferably, a second oil duct is further arranged in the chamber cover, the second oil duct is communicated with the first oil port, a pressure limiting valve is arranged on the second oil duct, and the pressure limiting valve comprises an elastic element and a plug.

Preferably, the engine further comprises a crankshaft, a third oil duct is arranged inside the crankshaft, the third oil duct is communicated with the second oil duct, the engine further comprises an oil sump and a fourth oil duct communicated with the oil sump, the fourth oil duct is arranged in the chamber cover, a rough filtering assembly is arranged in the fourth oil duct, and the other end of the fourth oil duct is communicated with the oil pump.

Compared with the prior art, the engine provided by the invention has the following beneficial effects:

the filter base has simple structure, small volume and more compact structure. The oil filter is convenient to mount and has good sealing performance with the oil filter base. The filter base is simple to install and good in economical efficiency.

Drawings

The invention is described in further detail below with reference to the following figures and detailed description:

FIG. 1 is an exploded perspective view of an engine subassembly of the present invention;

FIG. 2 is a cross-sectional view of an engine section assembly of the present invention;

FIG. 3 is a cross-sectional view of the engine of the present invention;

FIG. 4 is a perspective view of the filter base of the present invention;

FIG. 5 is another perspective view of the filter base of the present invention;

FIG. 6 is a cross-sectional view of the filter base of the present invention;

FIG. 7 is a perspective view of an engine section assembly of the present invention;

FIG. 8 is an enlarged fragmentary view of the oil pump assembly of the present invention.

Detailed Description

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

For the sake of simplicity, the drawings only schematically show the parts relevant to the present invention, and they do not represent the actual structure as a product. In addition, in order to make the drawings concise and understandable, components having the same structure or function in some of the drawings are only schematically illustrated or only labeled. In this document, "one" means not only "only one" but also a case of "more than one".

It should be further understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.

In this context, it is to be understood that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In addition, in the description of the present application, the terms "first", "second", and the like are used only for distinguishing the description, and are not intended to indicate or imply relative importance.

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following description will be made with reference to the accompanying drawings. It is obvious that the drawings in the following description are only some examples of the invention, and that for a person skilled in the art, other drawings and embodiments can be derived from them without inventive effort.

Referring to fig. 1 and 7, the invention discloses an engine 100, which comprises a filter base 1, a chamber cover 2, an oil pump 3 and an oil filter 4. The oil filter base 1 is arranged between the oil pump 3 and the oil filter 4, and the oil pump 3 is arranged on the chamber cover 2. The inside of engine 100 is the inside with respect to cover 2, and conversely, the outside of engine 100 is the outside. The machine filter base 1 is fixed at the outer end of the oil pump 3 through bolt connection, the oil filter 4 is fixed on the chamber cover 2 through a first connecting pipe 7, and meanwhile, inward pressure perpendicular to the surface of the chamber cover 2 is generated on the machine filter base 1 to tightly press the machine filter base 1.

Referring to fig. 4, 5 and 6, the filter base 1 includes a first mounting portion 11 and a second mounting portion 12, the front view of the first mounting portion 11 and the second mounting portion 12 is two circles that are overlapped, and the diameter of the first mounting portion 11 is smaller than that of the second mounting portion 12. The second mounting portion 12 protrudes outward compared to the first mounting portion 11. The filter base 1 further comprises a first plane 111 and a second plane 121, and the first plane 111 and the second plane 121 are arranged parallel to each other. The first plane 111 is an inner end surface of the first mounting portion 11, and the second plane 121 is an outer end surface of the second mounting portion 12. The first plane 111 is fixed and attached to the outer end face of the oil pump 3, two bolt holes 112 are formed in the first mounting portion, and the filter base 1 and the oil pump 3 are connected through bolts. The oil filter 4 is disposed outside the second plane 121.

The embodiment of the present invention is not limited to the circular mounting portions that are arranged to overlap each other, and the surfaces of the filter base that contact the chamber cover and the oil filter, respectively, are not limited to flat surfaces. The mounting portion of the filter base may be non-circular in configuration. The contact surface may also be designed to include a raised or recessed structure to ensure a better seal.

A first oil duct 13 and a first through hole 14 are arranged in the filter base 1. The first oil passage 13 includes a second oil inlet 131 and a second oil outlet 132, and the first oil passage 13 is constituted by a first counterbore 133 and a second counterbore 134. The second oil inlet 131 is located on the first plane 111, and the second oil outlet 132 is located on the second plane 121. The first counterbore 133 extends from the second oil inlet 131 perpendicularly to the first plane 111 to one end of the second plane 121, and the second counterbore 134 extends from the second oil outlet 132 perpendicularly to the second plane 121 to one end of the first plane 111. The second oil inlet 131 and the second oil outlet 132 are round mouths, and projections of the second oil inlet 131 and the second oil outlet 132 on the first plane 111 are overlapped, so that the first counter bore 133 is communicated with the second counter bore 134.

The oil inlet and outlet and the oil passage can be arranged in other forms, for example, the oil inlet is arranged to be a non-circular opening, and the oil passage is arranged to be bent along a curve and communicated with the oil pump and the oil filter. The embodiment has the advantages of small volume, compact structure and simple process.

Referring to fig. 2, the first through hole 14 is also provided as a circular hole, and the axis of the first through hole 14 is perpendicular to the second plane 12. In the circumferential direction of the first through hole 14, an oil reservoir 15 is circumferentially provided. The oil storage tank 15 is recessed inward from the second plane 121, and the oil storage tank 15 communicates with the second oil outlet 13. The chamber cover 2 is provided with a first oil port 21, and the first through hole 14 is arranged corresponding to the first oil port 21. The first oil port 21 and the first through hole 14 are disposed in a non-overlapping manner in a projection of the first plane 111, and the first oil port 21 is located in the first through hole 14.

The engine 100 further comprises a first connecting pipe 7. The oil filter 4 includes a first oil inlet 41 and a first oil outlet 42. One end of the first connecting pipe 7 is fixed and communicated to the first oil outlet 42, and the other end of the first connecting pipe 7 is fixed and communicated to the first oil port 21. The first connecting pipe 7 is located in the first through hole 14. In the present embodiment, the first oil outlet 42, the first connection pipe 7, and the first oil port 21 are all coaxially provided. The first connecting pipe 7 is a hollow stud, threads are machined at the first oil outlet 42 and the first oil port 21, threads are not machined on the inner wall of the first through hole 14, and two ends of the first connecting pipe 7 are fixed. The first oil outlet 42 is communicated to the first oil port 21 through the inner passage of the first connecting pipe 7.

The oil passage between the first oil outlet 42 and the first oil port 21 passing through the first through hole 14 may be understood that the first through hole 14 directly serves as an oil passage to communicate the first oil outlet 42 and the first oil port 21, and may also be understood that an additional connection member is provided in the first through hole 14. For example, in the present embodiment, the first through hole 14 functions as a relief, and the first connection pipe 7 is arranged in the first through hole 14 as a passage for actually circulating the oil, and communicates the first oil outlet 42 and the first oil port 21.

It is obvious that a person skilled in the art can also use the method of machining the first through hole 14, for example, machining threads at two ends in the through hole, and the two ends of the through hole are respectively communicated to the first oil outlet 42 and the first oil port 21 by using hollow studs or other forms of connectors, and the through hole can be regarded as a part of the oil outlet channel. Also can one end directly with first hydraulic fluid port 21 laminating intercommunication, sealed through the oil blanket, the extension of the other end sets up and at the outer wall processing screw thread, with oil cleaner snap-on the through-hole. This embodiment can be seen as providing the through hole and the connecting member as one body.

In contrast, the embodiment of the present invention only needs one hollow stud, so that the sealing performance is good, the machining mode is simple, and only one through hole capable of allowing the first connecting pipe 7 to pass through needs to be machined in the filter base 1. The first through hole 7 may be provided non-coaxially with the first port 21.

Referring to fig. 2, the engine 100 of the present invention has corresponding sealing rings at different positions in order to ensure the sealing performance of the filter base 1. Be equipped with first sealing washer 16 between oil cleaner 4 and the oil cleaner seat 1, first sealing washer 16 sets up in the outside of 15 circumferencial directions in oil storage tank, has guaranteed the leakproofness of oil

cleaner seat

1 and 4 contact surfaces of oil cleaner. And the second sealing ring 17 is arranged around the first oil port 21, and the second sealing ring 17 is positioned between the filter base 1 and the chamber cover 2. The oil between the filter base 1 and the oil filter 4 will leak downward through the gap between the first through hole 14 and the first connecting pipe 7, and the second seal ring 17 ensures that the oil will not overflow from between the filter base 1 and the cover 2. And a third sealing ring 18 is arranged between the filter base 1 and the oil pump 3, and the third sealing ring 18 is arranged around the oil pump 3, so that the sealing property between the filter base 1 and the oil pump 3 is ensured.

Referring to fig. 1, the first mounting portion 11 of the filter base 1 of the present invention is fixed to the outer end of the oil pump 3 by bolts 112, and the second mounting portion 12 is pressed against the cover by the oil filter 4 when it is screwed, by applying a pressing force directed inward perpendicular to the second mounting surface 12. This embodiment is under the prerequisite of having guaranteed sealed effect, and economic nature is better. In other embodiments, the second mounting portion 12 may be directly secured to the chamber lid by providing bolts or other connectors.

Referring to fig. 2 and 3, the engine 100 further includes a second oil passage 22 communicating with the first oil port 21, a crankshaft 5, a third oil passage 51 provided on the crankshaft, and a fourth oil passage 24 communicating with the oil pump 3. The third oil passage 51 communicates with the second oil passage 22, and the fourth oil passage 24 is provided in the cover and communicates with the oil sump 6 of the engine through the oil suction pipe 61.

The engine oil in the engine oil pool 6 of the engine 100 enters the fourth oil channel 24 in the chamber cover 2 through the oil suction pipe 61, and one end of the oil suction pipe 61, which is perpendicular to the chamber cover 2, is communicated with the engine oil pool 6, and the other end is communicated with the fourth oil channel 24. The fourth oil passage 24 is composed of three oil passages, which are respectively a first section 241 vertically and upwardly disposed perpendicular to the oil suction pipe 61, a second section 242 horizontally extending from the first section 241, and a third section 243 communicated with and upwardly extending perpendicular to the second section 242 and communicated with the oil pump 3. A strainer assembly 25 is provided in the fourth oil passage 24, the strainer assembly 25 being horizontally disposed in a second section 242 below the oil pump 3, the strainer assembly 25 being provided in the chamber lid 2. The engine oil enters the fourth oil passage 24, is filtered by the coarse filtering component 25 and then enters the engine oil pump 3.

Referring to fig. 8, the oil pump 3 includes a rotating shaft 31, an inner rotor 32, and an outer rotor 33, the inner rotor 32 and the rotating shaft 31 being coaxially disposed, and the outer rotor 33 and the inner rotor 32 being eccentrically disposed. Shaft 31 drives inner rotor 32 to rotate, and inner rotor 32 drives outer rotor 33 to rotate. The inner rotor 32 and the outer rotor 33 form a low pressure chamber 34 and a high pressure chamber 35, the engine oil is sucked into the low pressure chamber 34 after reaching the engine oil pump 3 through the fourth oil passage 24, and the engine oil pump 3 pumps the engine oil from the high pressure chamber 35 into the second oil inlet 131. The engine oil flows out from the second oil outlet 132 into the oil storage tank 15 through the first oil passage 13, and then enters the oil filter 4 through the first oil inlet 41. After being fine-filtered, flows out of the first oil outlet 42, enters the first oil port 21 through the first connection pipe 7 and enters the second oil passage 22.

Referring to fig. 3, the second oil passage 22 is provided with a pressure limiting valve 23, and the pressure limiting valve 23 includes an elastic element 231 and a plug 232. A fourth sealing ring 233 is arranged at the outer end of the pressure limiting valve 23 and between the chamber cover 2 and the filter base 1. For ensuring the tightness at the pressure-limiting valve 23. The third oil passage 51 includes a first branch 511, a third branch 513, and a second branch 512 that communicates the first branch 511 and the third branch 513. The first branch 511 is arranged perpendicular to the axial direction of the journal 52, the third branch 513 is arranged perpendicular to the axial direction of the shoulder 53, and the second branch 512 is arranged obliquely from the journal 52 to the shoulder 53. The engine oil flows into the fourth oil passage 51 from the second oil passage 22, and then branches off to the shaft diameter 52 and the shaft shoulder 53, thereby completing lubrication of the crankshaft 5.

It will be apparent to those skilled in the art that various modifications and variations can be made to the above-described exemplary embodiments of the present invention without departing from the spirit and scope of the invention. Thus, it is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.

Claims

1. An engine, comprising:

the chamber cover is provided with a first oil port;

2. The engine of claim 1, wherein the filter base includes a first mounting portion secured to an outer end of the oil pump and a second mounting portion secured to an outer end of the second mounting portion, the first oil passage is provided in the first mounting portion, and the first through hole is provided in the second mounting portion.

3. The engine of claim 2, wherein the filter base further comprises a first flat surface and a second flat surface arranged in parallel with each other, the first flat surface is attached to an outer end surface of the cover, the second flat surface is provided on the second mounting portion, and the oil filter is provided outside the second flat surface.

4. The engine of claim 3, wherein the first oil passage includes a second oil inlet disposed on a first plane and a second oil outlet disposed on a second plane, the second oil inlet being in communication with the high pressure chamber of the oil pump, the second oil outlet being in communication with the first oil inlet.

5. The engine of claim 4, wherein an oil storage tank is disposed on the second plane, the oil storage tank is disposed around the first through hole, the oil storage tank is communicated with the first oil inlet, and the oil storage tank is communicated with the second oil outlet.

6. The engine of claim 1, further comprising a first connecting pipe, one end of the first connecting pipe being fixed and communicated to a first oil outlet, the first connecting pipe being disposed in the first through hole, the other end of the first connecting pipe being fixed and communicated to a first oil port, the first oil outlet being communicated with the first oil port through the first connecting pipe.

7. The engine of claim 5, wherein a first seal ring is disposed between the second plane and the oil filter, the first seal ring is disposed around the oil storage tank, the second oil outlet is located in the first seal ring, the second seal ring is disposed around the first oil outlet, and a third seal ring is disposed on an outer side of the oil filter in a circumferential direction.

8. The engine of claim 4, wherein the first oil passage includes a first counterbore disposed extending from the second oil inlet perpendicularly to the first plane toward the second plane and a second counterbore disposed extending from the second oil outlet perpendicularly to the second plane toward the first plane, the first counterbore and the second counterbore being eccentrically disposed, the first counterbore and the second counterbore being in communication.

9. The engine of claim 1, wherein a second oil passage is further arranged in the chamber cover, the second oil passage is communicated with the first oil port, a pressure limiting valve is arranged on the second oil passage, and the pressure limiting valve comprises an elastic element and a plug.

10. The engine of claim 9, further comprising a crankshaft, wherein a third oil passage is disposed in the crankshaft and is in communication with the second oil passage, wherein the engine further comprises an oil sump and a fourth oil passage in communication with the oil sump, wherein the fourth oil passage is disposed in the chamber cover, wherein a strainer assembly is disposed in the fourth oil passage, and wherein an oil pump is in communication with an opposite end of the fourth oil passage.