CN209067312U

CN209067312U - Sump strainer structure

Info

Publication number: CN209067312U
Application number: CN201822076193.5U
Authority: CN
Inventors: 李湘华
Original assignee: Guangxi Yuchai Machinery Co Ltd
Current assignee: Guangxi Yuchai Machinery Co Ltd
Priority date: 2018-12-10
Filing date: 2018-12-10
Publication date: 2019-07-05
Anticipated expiration: 2028-12-10

Abstract

The utility model discloses a kind of sump strainer structures, it is mounted in internal combustion engine oil absorption system, for by the machine oil of oil sump objectionable impurities filter out after crankshaft, connecting rod and piston supplied by fuel sucking pipe, lubricating oil pump, the sump strainer structure includes: oil inlet, it is the annulus with height, the oil inlet has front-end and back-end, and the height of the front end is less than the height of the rear end；Oil outlet connects the fuel sucking pipe；And interconnecting piece, connect the oil inlet and the oil outlet；The open rearward end of the sump strainer structure is lower, can be effectively reduced and is emptied risk when bringing to a halt.

Description

Sump strainer structure

Technical field

The utility model is about field of internal combustion engine, especially with regard to a kind of sump strainer structure.

Background technique

Internal combustion engine oil absorption system structure is as shown in Figure 1, sump strainer entrance is flat nick, as shown in Fig. 2, in oil sump In the arrangement of major part backwards, the problem of low failure of engine oil pressure is likely to occur when vehicle is brought to a halt, main cause is to bring to a halt The machine oil in oil sump travels forward rapidly under effect of inertia in the process, forms machine oil liquid level shown in Fig. 3, leads to machine oil collection Machine oil liquid level is exposed in filter rear end, and air enters inlet line from the part for exposing liquid level, causes oil pump capacity to decline, machine oil Pressure reduction causes failure.In order to avoid such issues that, be mainly the following solution at present:

1, sump strainer is designed as microphone formula structure, as shown in Figure 4.This structure is relatively small and exquisite, can arrange Apart from the closer position in oil sump bottom, but the circulation area of the structure type is small, and flow resistance is big.

2, the distance by sump strainer apart from oil sump bottom reduces.It is this design equally exist circulation area it is small, stream Big problem is hindered, while being easy to suck the impurity of oil sump bottom, damages internal combustion engine kinematic pair.

3, increase oil baffle in oil sump, oil sump oil baffle shown in FIG. 1 is arranged horizontally, and is also had using vertical cloth It sets.This design effect when oil baffle is shorter is unobvious, and increases cost；When oil baffle is higher due to forced area Greatly, it is easy desoldering to break down, and since the low rear end in front end is high during vehicle descending, as shown in figure 5, flowing to front end Machine oil can not be flow back into sump strainer entrance by oil baffle blocking in time, to be emptied.

Above-mentioned solution used at present has following three main problem: first is that flow resistance is big, such as method 1, method 2； Second is that being easy the impurity of sucking oil sump bottom, such as method 2；Third is that integrity problem, such as method 3 are welded oil baffle and are easy Desoldering breaks down.

The information disclosed in the background technology section is intended only to increase the understanding to the general background of the utility model, and It is not construed as recognizing or implying in any form that information composition is already known to those of ordinary skill in the art existing Technology.

Utility model content

The purpose of this utility model is to provide a kind of sump strainer structure, the open rearward ends of the sump strainer structure It is lower, it can be effectively reduced and be emptied risk when bringing to a halt.

To achieve the above object, the utility model provides a kind of sump strainer structure, is mounted on internal combustion engine oil suction In system, for by the machine oil of oil sump objectionable impurities filter out after by fuel sucking pipe, lubricating oil pump supply crankshaft, even Bar and piston, the sump strainer structure includes: oil inlet, which has front-end and back-end, the height of the front end Less than the height of the rear end；Oil outlet connects the fuel sucking pipe；And interconnecting piece, connect the oil inlet with it is described Oil outlet.

In a preferred embodiment, the height smoothly increases along half of periphery of the annulus.

Compared with prior art, sump strainer structure described in the utility model has the following beneficial effects:

(1) sump strainer structure open rearward end involved in the utility model is lower, can be effectively improved and be emptied risk；

(2) in addition, the sump strainer is gradually increased from rear end toward front end apart from oil sump distance from bottom, into machine oil collection The actual internal area of filter is enough, and machine oil flow velocity is small, and flow resistance is small, and oil sump impurities at bottom is not easy to be inhaled into；

(3) it does not need additionally to increase part, at low cost, good reliability.

Detailed description of the invention

Fig. 1 is existing internal combustion engine oil absorption system schematic diagram；

Fig. 2 is existing sump strainer structure X-Y scheme；

The machine oil liquid level situation that Fig. 3 is likely to occur when being existing bring to a halt；

Fig. 4 is existing microphone formula sump strainer；

Oil sump state diagram when Fig. 5 is existing vehicle descending；

Fig. 6 is the sump strainer installation diagram according to one embodiment of the utility model；

Fig. 7 is the sump strainer structure three-dimensional figure according to one embodiment of the utility model；

Fig. 8 is the sump strainer structure X-Y scheme according to one embodiment of the utility model；

Main appended drawing reference explanation:

1- oil sump stub end；2,10- sump strainer structures；3- oil sump oil baffle；4- fuel sucking pipe；5- oil sump； 6- lubricating oil pump；7- crankshaft；8- connecting rod；9- piston, 11- oil outlet；12- interconnecting piece；13- oil inlet；A- machine oil liquid level.

Specific embodiment

With reference to the accompanying drawing, specific embodiment of the present utility model is described in detail, it is to be understood that this is practical Novel protection scope is not limited by the specific implementation.

Unless otherwise explicitly stated, otherwise in entire disclosure and claims, term " includes " or its change Changing such as "comprising" or " including " etc. will be understood to comprise stated element or component, and not exclude other members Part or other component parts.

As shown in figs 6-8, it according to a kind of sump strainer structure 10 of the preferred embodiments of the present invention, is mounted on In internal combustion engine oil absorption system, for after objectionable impurities in the machine oil from oil sump 5 is filtered out pass through fuel sucking pipe 4, lubricating oil pump 6 into And crankshaft 7, connecting rod 8 and piston 9 are supplied, the sump strainer structure 10 includes: oil inlet 13, oil outlet 11, and connection Portion 12, the oil inlet 13 have front-end and back-end, wherein the one end being gradually increased along x-axis numerical value is rear end, along x-axis One end that numerical value is gradually reduced is front end, and the height of the front end is less than the height of the rear end；The oil outlet 11 connects institute State fuel sucking pipe 4；The interconnecting piece 12 connects the oil inlet 13 and the oil outlet 11.

As a kind of preferred embodiment, the height smoothly increases along half of periphery of the annulus.

As a kind of preferred embodiment, bottom of the rear end not in contact with oil sump stub end.

The description of the aforementioned specific exemplary embodiment to the utility model is in order to illustrate and illustration purpose.These Description is not wishing to for the utility model to be limited to disclosed precise forms, and it will be apparent that according to the above instruction, can carry out It is many to change and change.The purpose of selecting and describing the exemplary embodiment is that explaining the specific principle of the utility model And its practical application, so that those skilled in the art can be realized and utilize a variety of different examples of the utility model Property embodiment and various chooses and changes.The scope of the utility model is intended to by claims and its waits similar shapes Formula is limited.

Claims

1. a kind of sump strainer structure, is mounted in internal combustion engine oil absorption system, for that will have in the machine oil of oil sump It does harm to after impurity filters out and crankshaft, connecting rod and piston is supplied by fuel sucking pipe, lubricating oil pump, which is characterized in that the machine oil collection filter Device structure includes:

Oil inlet, is the annulus with height, which has a front-end and back-end, the height of the front end be less than it is described after The height at end；

Oil outlet connects the fuel sucking pipe；And

Interconnecting piece connects the oil inlet and the oil outlet.

2. sump strainer structure as described in claim 1, which is characterized in that the height along the annulus hemicycle Circumferential surface smoothly increases.