CN202431321U

CN202431321U - Oil sump of diesel engine

Info

Publication number: CN202431321U
Application number: CN2011205629774U
Authority: CN
Inventors: 周许英; 张文响; 李乐
Original assignee: Great Wall Motor Co Ltd
Current assignee: Great Wall Motor Co Ltd
Priority date: 2011-12-29
Filing date: 2011-12-29
Publication date: 2012-09-12
Anticipated expiration: 2021-12-29

Abstract

An oil sump of a diesel engine is used for solving the technical problem that an existing oil sump of the diesel engine is heavy in weight and high in processing cost. The oil sump is characterized in that the bottom surface of the oil sump consists of a small bottom plane A, a small bottom plane B, a small bottom plane C, a small bottom plane D, a small bottom plane E and a small bottom plane F which are connected smoothly, the side wall of the oil sump and the bottom surface form a circular arc transition structure, a group of bolt holes are evenly distributed on the overturned edge of the periphery of the top of the oil sump, and the oil sump is fixed on a lower cylinder body of the engine through bolts matched with the bolt holes. The oil sump of the diesel engine has the advantages of being simple in structure, reliable in performance, good in process and low in production cost, and can fully meet the requirements of an engine lubricating system and remarkably improve the noise, vibration and harshness (NVH) performance of the engine.

Description

A kind of DENG oil sump

Technical field

The utility model relates to a kind of engine sump tank, is particularly useful for the oil sump of vehicle-mounted DENG, belongs to technical field of engines.

Background technique

Along with developing rapidly of automotive industry, Hyundai Motor has not only been pursued power performance, and reliability, Security and the riding comfort of automobile running are also all had higher requirement.Oil sump is as a vitals of automotive engine lubrication system; Except lubricant oil being provided for motor; Outside guaranteeing that each kinematic pair of motor turns round swimmingly; Also be the unique source of component cold oil of working under the hot environments such as piston, valve, but oil sump also is the most significantly one of component of engine noise output simultaneously, the structure of oil sump has significant impact to motor NVH characteristic.At present the design concept of engine sump tank is to satisfy on the basis that the oil mass volume requires; Improve the rigidity of oil sump through the method that increases stud or roll extrusion muscle; Reduce vibration noise, also strengthened the weight of oil sump and the difficulty of manufacturing process thus, corresponding cost of production improves.

The model utility content

The purpose of the utility model is the drawback to existing technology, and a kind of reliable performance, simple in structure, good manufacturability, DENG oil sump that cost of production is low are provided.

The said problem of the utility model realizes with following technical proposals:

A kind of DENG oil sump; Its specialization is: said oil sump bottom surface is made up of bottom facet A, bottom facet B, bottom facet C, bottom facet D, bottom facet E and the bottom facet F along slip; Its sidewall and bottom surface are the arc transition structure; On its top peripheral flanging, be uniformly distributed with one group of bolt hole, oil sump through with being bolted on the lower cylinder body of engine of said bolt hole coupling.

Above-mentioned DENG oil sump, its sidewall outer surface is being indent frustum face structure with the bolt hole corresponding position, between adjacent frustum face, forms inverted evagination frustum face, on the convex cone table top vertical stiffening rib is set outside.

Above-mentioned DENG oil sump, periphery junction surface inboard, its rear end is provided with stiffening rib, and said stiffening rib and peripheral junction surface form hollow triangular shape junction surface.

Above-mentioned DENG oil sump, its inwall corresponding position is provided with the integral type back oil road, and said back oil road import is communicated with pairing engine cylinder-body return opening, and the back oil road outlet is positioned at appropriate position, top, oil sump bottom surface.

Above-mentioned DENG oil sump, the number of bolt hole that is uniformly distributed with on its top peripheral flanging is no less than 20.

The utility model is divided into 6 facets with the engine sump tank bottom surface, not only can improve the rigidity and the model frequency (being natural frequency) of bottom surface, reduces the resonance order; Improve motor NVH performance; Also be convenient to form the bottom surface minimum point, when the later stage maintenance service, can thoroughly change discarded machine oil, improve maintenance qualities; Prolong engine life, also guaranteed the reliability of vehicle oil trap oil suction under various extreme road conditions simultaneously; The structure that concave side wall links to each other with evagination frustum face, one side has significantly improved the rigidity and the model frequency of sidewall, has reduced vibration noise, helps the light-weight design of motor on the other hand, and base area is reduced, and has made things convenient for the dismounting of bolt; The hollow triangular shape junction surface of rear end has reduced working area, utilizes the triangle stability principle, reaches good rigidity and intensity effect with simple structure; Adopt the integral type back oil road can the oil return of engine cylinder-body and cylinder cap directly be got back to below the liquid level of oil sump, be convenient to sealing, thereby avoid of the influence of the interior gas of crankcase, guaranteed the unobstructed of oil return cylinder body and cylinder cap oil return.In a word, the utlity model has simple in structure, reliable performance, good manufacturability, characteristics that cost of production is low, can fully satisfy the requirement of engine lubrication system, significantly improve motor NVH performance.

Description of drawings

Below in conjunction with accompanying drawing the utility model is described further.

Fig. 1 is the structural drawing of the utility model;

Fig. 2 is the plan view of the utility model.

Each label is among the figure: 1, bottom facet A, 2, bottom facet B, 3, bottom facet C, 4, bottom facet D, 5, bottom facet E, 6, bottom facet F, 7, stiffening rib, 8, back oil road, 9, bolt hole, 10, vertical stiffening rib.

Embodiment

Referring to Fig. 1, Fig. 2; The specialization of the utility model is: the oil sump bottom surface is made up of bottom facet A 1, bottom facet B 2, bottom facet C 3, bottom facet D 4, bottom facet E 5 and the bottom facet F 6 along slip; Its sidewall and bottom surface are the arc transition structure; On its top peripheral flanging, be uniformly distributed with one group of bolt hole 9, oil sump through with being bolted on the lower cylinder body of engine of said bolt hole 9 couplings.

Referring to Fig. 1, Fig. 2, the utility model sidewall outer surface is being indent frustum face structure with the bolt hole corresponding position, between adjacent frustum face, forms inverted evagination frustum face, and convex cone table top top is provided with vertical stiffening rib 10 outside.

Referring to Fig. 1, Fig. 2, end periphery junction surface inboard is provided with stiffening rib 7 behind the utility model, and said stiffening rib 7 forms hollow triangular shape junction surface with peripheral junction surface.

Referring to Fig. 1, Fig. 2, the utility model inwall corresponding position is provided with integral type back oil road 8, and said back oil road 8 imports are communicated with pairing engine cylinder-body return opening, and back oil road 8 outlets are positioned at appropriate position, top, oil sump bottom surface.

Referring to Fig. 1, Fig. 2, the working principle of the utility model is:

Big plane, bottom surface is divided into 6 facets, can increase substantially the rigidity and the model frequency of bottom surface, reduces the resonance order; Improve motor NVH performance, in addition, such structure can also be set up the facet minimum point; When the maintenance service in later stage, can thoroughly change discarded machine oil, improve maintenance qualities, guarantee the good performance of engine oil; Prolong engine life, in addition, can guarantee that car load oil trap oil suction under various extreme road conditions is reliable; The structure that concave side wall links to each other with evagination frustum face, one side has significantly improved the rigidity and the model frequency of sidewall, has reduced vibration noise, helps the light-weight design of motor on the other hand, and base area is reduced, and has made things convenient for the dismounting of construction bolt; The hollow triangular shape junction surface of rear end has reduced working area, utilizes the triangle stability principle, reaches good rigidity and intensity effect with simple structure; Adopt integrally casting formula back oil road 8 can the oil return of engine cylinder-body and cylinder cap directly be got back to below the liquid level of oil sump; And be convenient to sealing; Thereby avoid of the influence of the interior gas of crankcase to cylinder body and cylinder cap oil return; Guaranteed the unobstructed of oil return, the especially oil return of cylinder cap Oil-gas Separation, thus reduce the risk that cylinder cap is scurried oil greatly.

Claims

1. DENG oil sump; It is characterized in that; Said oil sump bottom surface is made up of bottom facet A (1), bottom facet B (2), bottom facet C (3), bottom facet D (4), bottom facet E (5) and the bottom facet F (6) along slip; Its sidewall and bottom surface are the arc transition structure, on its top peripheral flanging, are uniformly distributed with one group of bolt hole (9), oil sump through with being bolted on the lower cylinder body of engine of said bolt hole (9) coupling.

2. a kind of DENG oil sump according to claim 1; It is characterized in that; The sidewall outer surface is being indent frustum face structure with the bolt hole corresponding position, between adjacent frustum face, forms inverted evagination frustum face, and convex cone table top top is provided with vertical stiffening rib (10) outside.

3. a kind of DENG oil sump according to claim 2 is characterized in that, back end periphery junction surface inboard is provided with stiffening rib (7), and said stiffening rib (7) forms hollow triangular shape junction surface with peripheral junction surface.

4. a kind of DENG oil sump according to claim 3; It is characterized in that; The inwall corresponding position is provided with integral type back oil road (8); Said back oil road (8) import is communicated with pairing engine cylinder-body return opening, and back oil road (8) outlet is positioned at appropriate position, top, oil sump bottom surface.

5. a kind of DENG oil sump according to claim 4 is characterized in that the quantity of the bolt hole that is uniformly distributed with on the peripheral flanging of top (9) is no less than 20.