CN218598266U - Novel crankcase of labyrinth structure - Google Patents

Abstract

The utility model discloses a novel crankcase of labyrinth structure, it includes the labyrinth passageway, the labyrinth passageway sets up on the box, the labyrinth passageway divide into inlet chamber, labyrinth chamber and outlet chamber according to gaseous circulation direction in proper order, the inlet chamber labyrinth chamber with the outlet chamber communicates in proper order, be equipped with a plurality of oil-gas separation boards in the inlet chamber, it is a plurality of oil-gas separation board is dislocation interval setting from top to bottom, and is a plurality of the oil-gas separation board will the inlet chamber is separated and is formed the circuitous passageway of S-shaped. Adopt the utility model discloses a crankcase has good oil-gas separation structure, the effectual problem of solving traditional crankcase air cleaner scurring oil, and simple structure need not extra processing, and the implementation cost is low, and sets up the oil-gas separation board in the intracavity portion that admits air, and compact structure does not occupy unnecessary space.

Description

Novel crankcase of labyrinth structure

Technical Field

The utility model belongs to the technical field of the motorcycle crankcase, concretely relates to novel crankcase of labyrinth structure.

Background

The engine of motorcycle is a machine which ignites the fuel mixture in the cylinder to burn and generate heat energy to be changed into mechanical energy, and the power is transmitted to the rear wheel of the motorcycle by a crankshaft through a transmission mechanism to be changed into the driving power of the vehicle. At present, a common labyrinth crankcase is generally adopted, oil-gas separation is realized only by a labyrinth cavity, the problems of incomplete oil-gas separation and poor effect exist, in the running process of an engine, the rotation motion of internal parts of the engine and the explosion of a cylinder cause the air flow motion inside the crankcase, engine oil is brought into the labyrinth cavity and enters an air filter through a crankcase to a breather pipe, the oil accumulation amount of the air filter is large, the consumption amount of the engine oil is large, the engine oil is burnt, the carbon accumulation of a combustion chamber causes the faults of untight valve closing and the like, and the problems of unqualified emission and environmental pollution are caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a novel crankcase of maze structure is provided, oil gas can thoroughly be separated to solve prior art problem to the air cleaner oil blowby practically.

In order to solve the technical problem, the utility model discloses a technical scheme as follows:

the utility model provides a novel crankcase of labyrinth structure, its includes the labyrinth passageway, the labyrinth passageway sets up on the box, the labyrinth passageway divide into import chamber, labyrinth chamber and export chamber according to gaseous circulation direction in proper order, the import chamber labyrinth chamber with the export chamber communicates in proper order, be equipped with a plurality of oil-gas separation boards in the import chamber, it is a plurality of oil-gas separation board is dislocation interval setting from top to bottom, and is a plurality of oil-gas separation board will the import chamber is separated and is formed the circuitous passageway of S-shaped.

As the preferred proposal of the utility model, the uterine cavity is formed by a plurality of cavities which are communicated in sequence.

As the preferred scheme of the utility model, it is a plurality of the cavity communicates in proper order and forms the circuitous passageway of S-shaped.

As the preferred scheme of the utility model, the oil-gas separation board is provided with two.

As the preferred proposal of the utility model, the outlet cavity is connected with the air filter through the vent pipe.

Implement the utility model provides a pair of novel crankcase of labyrinth structure compares with prior art, and its beneficial effect lies in:

the utility model discloses a crankcase has adopted a novel labyrinth structure, increases oil-gas separation board in the air intake cavity, and oil-gas separation board has changed the flow direction of gas mixture, and when gas mixture was circulated to the high-order by the low level, the gas mixture was under the effect of oil-gas separation board and self gravity, and machine oil in the gas mixture can the automatic deposition in the chamber of admitting air to return in the oil tank, and gas in the gas mixture entered labyrinth chamber and export chamber along with the S-shaped circuitous passageway in the chamber of admitting air in proper order, and last discharge has improved the oil-gas separation effect, the utility model discloses a crankcase has good oil-gas separation structure, the effectual problem of solving traditional crankcase air cleaner scurry oil, and simple structure need not extra processing, and the implementation cost is low, and sets up oil-gas separation board in the intracavity portion of admitting air, and compact structure does not occupy unnecessary space.

Drawings

In order to more clearly illustrate the technical solution of the embodiments of the present invention, the drawings of the embodiments will be briefly described below.

Fig. 1 is a cross-sectional view of a crankcase with a novel labyrinth structure according to an embodiment of the present invention;

fig. 2 isbase:Sub>A sectional view taken along the direction of fig. 1A-base:Sub>A.

The mark in the figure is:

a labyrinth passage 1; a box body 2; an inlet chamber 3; a uterine cavity 4; an outlet chamber 5; an oil-gas separation plate 6.

Detailed Description

The following detailed description of the embodiments of the present invention is made with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. It should be understood that the terms "first", "second", etc. are used herein to describe various information, but the information should not be limited to these terms, and these terms are only used to distinguish one type of information from another. For example, a "first" message may also be referred to as a "second" message, and similarly, a "second" message may also be referred to as a "first" message, without departing from the scope of the present invention.

The crankcase of the existing motorcycle engine is generally formed by connecting a left case body and a right case body, and a cavity for containing engine oil is arranged inside the crankcase body. When the motorcycle runs, the engine runs at a high speed, internal parts of the engine rotate and the cylinder explodes, built-in engine oil easily splashes and mixes with waste gas, the engine oil and the waste gas are mixed and sprayed to an air filter from a vent pipe, an oil spraying phenomenon is formed, the consumption of the engine oil is large, the engine oil is reduced, the phenomenon of poor lubrication is caused, mechanical faults such as poor valve closing caused by engine oil burning and carbon deposition in a combustion chamber easily occur, the reliability of the engine is reduced, the emission is unqualified, and the environment is polluted.

As shown in fig. 1 and fig. 2, the preferred embodiment of the present invention provides a novel crankcase with labyrinth structure, which comprises a labyrinth passage 1, the labyrinth passage 1 is disposed on a box 2 (i.e. a right box or a left box), the labyrinth passage 1 is divided into an inlet chamber 3, a labyrinth chamber 4 and an outlet chamber 5 according to the flowing direction of gas, the inlet chamber 3 is divided into the labyrinth chamber 4 and the outlet chamber 5, the inlet chamber 3 is provided with a plurality of oil-gas separation plates 6, which are disposed in the inlet chamber 3, and the oil-gas separation plates 6 are disposed at staggered intervals, which are a plurality of, and the oil-gas separation plates 6 will be separated from the inlet chamber 3 to form an S-shaped circuitous passage.

Specifically, the oil-gas separation plate 6 is provided with two, and two oil-gas separation plates 6 are respectively arranged on the top wall and the bottom wall of the air inlet cavity in a staggered manner. The outlet chamber 5 is connected with an air filter through a vent pipe.

The utility model discloses a novel labyrinth structure has been adopted to the crankcase, increases oil-gas separation board 6 in the intake chamber, and oil-gas separation board 6 has changed the flow direction of gas mixture, and the gas mixture is by the low level when circulating to the high position, and the gas mixture is under the effect of oil-gas separation board 6 and self gravity, and machine oil in the gas mixture can automatic deposition in the intake chamber to return in the oil tank, and gas in the gas mixture enters labyrinth chamber 4 and outlet chamber 5 along with the S-shaped circuitous passageway in the import chamber 3 in proper order, discharges at last, has improved the oil-gas separation effect, the utility model discloses a crankcase has good oil-gas separation structure, the effectual problem of solving traditional crankcase air cleaner oil channeling, and simple structure need not extra processing, and the implementation cost is low, and sets up oil-gas separation board 6 and in the intracavity portion that admits air, and compact structure does not occupy unnecessary space.

Exemplarily, labyrinth chamber 4 is communicated in proper order by a plurality of cavitys and is formed the circuitous passageway of S-shaped to prolong gaseous circulation passageway, can further separate the gas mixture, make only gaseous can be through the circuitous passageway of S-shaped, can make the gas mixture separate more high-efficient more thoroughly, guaranteed oil-gas separation' S effect.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; 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 meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.

Claims (5)

1. The utility model provides a novel crankcase of labyrinth structure, a serial communication port, including the labyrinth passageway, the labyrinth passageway sets up on the box, the labyrinth passageway divide into import chamber, labyrinth chamber and export chamber according to gaseous circulation direction in proper order, the import chamber the labyrinth chamber with the export chamber communicates in proper order, be equipped with a plurality of oil-gas separation boards in the import chamber, it is a plurality of oil-gas separation board is dislocation interval setting from top to bottom, and is a plurality of oil-gas separation board will the import chamber is separated and is formed the circuitous passageway of S-shaped.

2. The crankcase with the novel labyrinth structure as claimed in claim 1, wherein the labyrinth cavity is formed by sequentially communicating a plurality of cavities.

3. The crankcase of claim 2, wherein a plurality of the cavities are sequentially communicated to form an S-shaped circuitous passage.

4. The crankcase with the novel labyrinth structure as claimed in claim 1, wherein there are two oil-gas separation plates.

5. The crankcase of claim 1, wherein the outlet chamber is connected to an air filter through a breather tube.

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