CN201531292U

CN201531292U - Automobile engine oil-gas separating system

Info

Publication number: CN201531292U
Application number: CN200920217759XU
Authority: CN
Inventors: 陈磊; 韦家良; 徐志红
Original assignee: SAIC GM Wuling Automobile Co Ltd
Current assignee: SAIC GM Wuling Automobile Co Ltd
Priority date: 2009-09-28
Filing date: 2009-09-28
Publication date: 2010-07-21
Anticipated expiration: 2019-09-28

Abstract

The utility model provides an automobile engine oil-gas separating system, which is characterized in that an oil gas channel is arranged between an engine cylinder and a valve chamber cover, an oil-gas separating cavity is integrated in the valve chamber cover, a respiratory cavity baffle, a PCV cavity baffle and a separate rib plate are integrated in the oil-gas separating cavity, and oil return holes are arranged on the respiratory cavity baffle and the PCB cavity baffle. The automobile engine oil-gas separating system has simple and compact structure, high reliability, excellent oil gas separation effect and high integration, not only can realize the ventilation of a straight four-cylinder engine crankcase, well solves the problem of gas pollution of the crankcase, can be arranged on a straight four-cylinder engine, meets the characteristic of compact layout space of a mini-size vehicle, but also makes the design of elements of the engine much simpler, reduces the cost of elements, easily realizes the oil gas separation, and keeps the layout of the engine more compact.

Description

A kind of motor car engine oil and gas separating system

Technical field

The utility model relates to technical field of engines, is specifically related to a kind of motor car engine oil and gas separating system.

Background technique

The major pollutants of motor vehicle exhaust emission are carbon monoxide (CO), hydrocarbon (HC), nitrogen oxide (NO X), plumbous (Pb) etc.HC and NOX are subjected to the irradiation of strong solar ultraviolet in atmosphere environment after, produce a kind of photochemical reaction of complexity,------the photochemical smog that generates a kind of new pollutant.This photochemical smog can cause ocular pain, and serious words also can be had difficulty in breathing.The long-term breathing by the air of pollutions such as nitrogen oxide and black smoke also brought the disease and the cancer of respiratory apparatus easily.So national regulation disapproves this gaseous emission in atmosphere.When motor car engine is worked, have part inflammable mixture and products of combustion sometimes and scurry in the crankcase by cylinder through piston ring, scurry in the gas in the crankcase and promptly contain HC and other pollutants.When motor is worked at low temperatures, also have the liquid fuel crankcase that bleeds, these materials such as untimely removing will speed up deterioration of lubricant and parts are corroded or corrosion.The oil and gas separating system that Hyundai Motor adopts prevents that exactly crank case gases is discharged into the purification plant in the atmosphere.

Existing oil and gas separating system generally is to arrange separately increased difficulty with regard to the layout of giving motor like this, and level of integration to be not high by deaerator on motor.

Summary of the invention

The purpose of this utility model is finished in order to solve deficiency of the prior art, the purpose of this utility model provide a kind of simple and compact for structure, reliability is high, the oil and gas separating system of good oil gas separation effect, the motor car engine that is used for 4 cylinders in upright arrangement that level of integration is high, not only can realize the ventilation of 4 Cylinder engine crankcases in upright arrangement, well solve the crank case gases pollution problems, also can easily realize Oil-gas Separation, the characteristics of little car spatial arrangement compactness can be satisfied, and the cost of part can be reduced.

The technical solution of the utility model is:

A kind of motor car engine oil and gas separating system, it is characterized in that: between engine cylinder-body and valve chamber cover, have gas channel, integrated Oil-gas Separation chamber in valve chamber cover, in the Oil-gas Separation chamber, be integrated with respiratory cavity baffle plate, PCV chamber baffle plate and separate floor, on respiratory cavity baffle plate and PCV chamber baffle plate, have spill port.

Motor car engine oil and gas separating system of the present utility model is simple and compact for structure, reliability is high, good oil gas separation effect, level of integration height, not only can realize the ventilation of 4 Cylinder engine crankcases in upright arrangement, well solve the crank case gases pollution problems, can be arranged on the motor of 4 cylinders in upright arrangement, satisfy the characteristics of little car spatial arrangement compactness, and can make the Element Design of motor simpler, reduce the cost of part, also can easily realize Oil-gas Separation, engine arrangement is compacter.

Description of drawings

Fig. 1 is the structure and the gas flow schematic representation of motor car engine oil and gas separating system of the present utility model, and wherein the solid arrow direction is the flow direction of mist of oil waste gas, and empty arrow direction is the flow direction of fresh air.

Fig. 2 is the schematic representation of valve chamber cover of the present utility model.

Fig. 3 is the schematic representation in Oil-gas Separation of the present utility model chamber.

The figure number explanation

1, cylinder body 2, valve chamber cover 3, gas channel 4, Oil-gas Separation chamber

5, breathe baffle plate 6, PCV baffle plate 7, separation floor 8, spill port

9, respirating tube 10, PCV valve 11, intake manifold 12, suction port

Embodiment

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

Of the present utility model a kind of motor car engine oil and gas separating system shown in Fig. 1～3, between engine cylinder-body 1 and valve chamber cover 2, have gas channel 3, integrated Oil-gas Separation chamber 4 in valve chamber cover, in Oil-gas Separation chamber 4, be integrated with respiratory cavity baffle plate 5, PCV chamber baffle plate 6 and separate floor 7, on respiratory cavity baffle plate 5 and PCV chamber baffle plate 6, have spill port 8.

Working principle of the present utility model is: the waste gas that has mist of oil in the crankcase is from gas channel 3 string upper cylinder covers 8, go up valve chamber cover 2 by suction port 12 strings again, enter Oil-gas Separation chamber 4, mix with the fresh air that from respirating tube 9, sucks, separation floor 7 in the Oil-gas Separation chamber can block these gases, the oil mist particles of heavier composition is after being stopped in the gas, can fall, then by return opening 8 oil returns, lighter gas continues to flow along with the structure in Oil-gas Separation chamber, separate while flowing then, the machine oil that is separated passes back in the motor, waste gas after separated enters combustion chambers burn by PCV valve 10 and intake manifold 11, reaches good oil gas separation, forms the favourable recycling of crank case gases.

The utility model is by design one gas channel in engine cylinder-body, integrated design gas oil separation structure in valve chamber cover, the gas that makes string in the crankcase come up can effectively be carried out the separation of oil gas, reach and reduce engine motor oil consumption, and the purpose of reduction cost of parts, also can satisfy the arrangement requirement of little car simultaneously to the space compactness.

Above-mentionedly only several specific embodiments in the utility model are illustrated; but can not be as protection domain of the present utility model; every equivalence of having done according to the design spirit in the utility model changes or modifies, and all should think to fall into protection domain of the present utility model.

Claims

1. motor car engine oil and gas separating system, it is characterized in that: between engine cylinder-body and valve chamber cover, have gas channel, integrated Oil-gas Separation chamber in valve chamber cover, in the Oil-gas Separation chamber, be integrated with respiratory cavity baffle plate, PCV chamber baffle plate and separate floor, on respiratory cavity baffle plate and PCV chamber baffle plate, have spill port.