CN201321907Y

CN201321907Y - Oil gas channel structure

Info

Publication number: CN201321907Y
Application number: CNU2008201135519U
Authority: CN
Inventors: 李金印; 钟伟添; 沈捷
Original assignee: Guangxi Yuchai Machinery Co Ltd
Current assignee: Guangxi Yuchai Machinery Co Ltd
Priority date: 2008-11-12
Filing date: 2008-11-12
Publication date: 2009-10-07
Anticipated expiration: 2018-11-12

Abstract

The utility model discloses an oil gas channel structure, which comprises an oil gas channel communicated with a cylinder head, a cylinder block and a frame; the oil gas channel is communicated with the side of the cylinder head and a valve chamber of the cylinder head and communicated with the side of the frame and an engine oil cavity of an engine. The oil gas channel in the cylinder block and the oil gas channel in the frame are arranged in a local convex manner. The oil gas channel in the cylinder block is positioned outside a cylinder fastening bolt of the engine, the oil gas channel in the cylinder block is also used for the fastening bolt to pass through, and the oil gas channel can be directly cast and shaped. The oil gas channel in the utility model has the advantages of compact structure, simplified process and good ventilation effect, can effectively improve the rigidity of the cylinder block body and is favorable for cooling the fastening bolt.

Description

A kind of gas channel structure

Technical field

The utility model relates to engine art, relates in particular to a kind of gas channel structure of motor.

Background technique

During engine operation, blowby is gone in the crankcase through piston ring inflammable mixture and waste gas can make crankcase pressure, temperature raise, and cause engine oil leakage, quicken the aging of parts wear and machine oil.

Usually, can in cylinder head, cylinder block and support, design gas channel, the gas channel of mixed gas (containing a large amount of atomizing machine oil, water vapour, carbon dioxide, hydrocarbon, sulfur dioxide etc.) in the crankcase by being provided with, communicate with the valve cage of cylinder head, burn the positive crankcase ventilation (PCV) that this is just usually said once more by being arranged in the cyclinder head cover or being incorporated into engine aspirating system behind the outside corresponding gas and oil separating plant (separated oil) again.

Engine oil gas channels designs of the prior art is unreasonable, complex structure; Passage design mostly causes the rigidity of cylinder body to reduce in cylinder body; And the clamping bolt passage of gas channel and cylinder is not shared, and structure is not compact, and is unfavorable for the cooling of clamping bolt.

The model utility content

The purpose of this utility model is to overcome above-mentioned defective of the prior art, can make the design of gas channel more reasonable, improves the rigidity of cylinder body, helps the cooling of clamping bolt simultaneously.

The utility model provides a kind of gas channel that structure is set, and comprises the gas channel that cylinder head, cylinder block and support are connected, and gas channel communicates with the valve cage of cylinder head at cylinder head side, and communicates with the engine motor oil chamber in the support side.

In the technique scheme, gas channel in the cylinder block and the gas channel in the support can be local the protrusion and be provided with.

In the technique scheme, the gas channel in the cylinder block can be positioned at the outside of cylinder clamping bolt, and the gas channel in clamping bolt passage and the cylinder block is shared.

In the technique scheme, directly cast form of gas channel.

Owing to adopt above-mentioned technological scheme, the utlity model has following beneficial effect:

1, gas channel up/down perforation is provided with rationally, guarantees that crankcase ventilation is good, helps guaranteeing the Performance And Reliability of motor;

2, gas channel protrudes the body setting, can effectively improve the structural rigidity of cylinder block and support;

3, clamping bolt passage and gas channel are shared, are convenient to the cooling of bolt, and make and help engine structure compactness, work simplification reducing production costs.

Description of drawings

Fig. 1 is the utility model gas channel structure cylinder head, cylinder block, support assembly structure schematic representation;

Fig. 2 is the A-A generalized section of Fig. 1;

Fig. 3 is the air cylinder head structure schematic representation of the utility model gas channel structure;

Fig. 4 is the cylinder head valve cage structural representation of the utility model gas channel structure;

Fig. 5 is the cylinder block top-direction structural representation of the utility model gas channel structure;

Fig. 6 is the cylinder block bottom direction structural representation of the utility model gas channel structure;

Fig. 7 is the stand structure schematic representation of the utility model gas channel structure.

Mark the following drawings mark thereon in conjunction with the accompanying drawings:

The 1-cylinder head; Establish gas channel in the 2-cylinder head; 3-cylinder clamping bolt; Establish gas channel in the 4-cylinder block; The 5-cylinder block; The 6-support; Establish gas channel in the 7-support; The 8-cylinder head gasket; 9-cylinder head camshaft bearing bush seat; The 10-gas channel protrudes the cylinder block body structure; The 11-gas channel protrudes the machine base body structure.

Embodiment

Below in conjunction with accompanying drawing the utility model is elaborated.

Gas channel can be designed to direct cast form, or shapes.General every motor is provided with a plurality of gas channels, reasonably be provided with and could guarantee that crankcase ventilation is good, and good crankcase ventilation helps guaranteeing the Performance And Reliability of motor.

To shown in Figure 7, the utility model embodiment's gas channel structure comprises establishes gas channel 2, is located at and establishes gas channel 4 in the cylinder block on the cylinder block 5 and be located in the support on the support 6 and establish gas channel 7 in the cylinder head of being located on the cylinder head 1 as Fig. 1.

Shown in Fig. 5,6,7, establish in the described cylinder block and establish gas channel 7 in gas channel 4 and the support and be designed to Local Convex and go out cylinder block 5 and support 6 bodies (referring to the reference character among the figure 10 and 11), such structure can effectively improve the structural rigidity of cylinder block and support.

Gas channel next-door neighbour cylinder clamping bolt 3 both sides are provided with (being positioned at the bolt outside), promptly about every grade of clamping bolt one gas channel are set.Establish the passage that gas channel 4 is used for cylinder clamping bolt 3 simultaneously in the cylinder block.Motor clamping bolt 3 parts expose to establishes (being that clamping bolt passage and gas channel are shared) in the gas channel 4 in the cylinder block, this mode of structure helps the cooling of bolt, guarantees that cylinder is evenly stressed.

All directly cast form of gas channel of the present utility model, establish in the corresponding cylinder head that is provided with to establish in gas channel 2 and the cylinder block and establish gas channel 7 up/down perforations in gas channel 4 and the support, form the crankcase ventilation passage of motor, this up/down perforation structure is provided with that ventilation effect is good, technology simple, low cost of manufacture.Wherein, corresponding position design has through hole to connect to establish in the cylinder head in gas channel 2 and the cylinder block and establishes gas channel 4 on the cylinder head gasket 8 between cylinder head 1 and the cylinder block 5.

As shown in Figure 4, establish gas channel 2 top open design in the cylinder head below the camshaft bearing bush seat 9 of cylinder head 1, communicate with valve cage, atomizing machine oil, the water vapour scurried into during engine operation in flammable mixed air, waste gas, atomizing machine oil and the crankcase in the crankcase enter the valve cage of cylinder head by gas channel, are located in the cyclinder head cover or are incorporated into engine aspirating system behind the outside corresponding gas and oil separating plant (separated oil) by other and burn once more; Simultaneously, component are lubricated in the machine oil that cooling is agglutinated in the valve cage, separated machine oil and the valve cage oozes the machine oil of letting out and is back to the engine motor oil chamber by gas channel, and arrow is represented that the valve cage inner engine oil is back in the cylinder head of camshaft bearing bush seat 9 belows and established gas channel 2 among the figure.

The utility model gas channel structure has novel structure, and ventilation effect is good, and advantages such as low cost of manufacture can be widely used in motor and make the field.

It should be noted that at last: above embodiment only in order to the explanation the utility model and and the described technological scheme of unrestricted the utility model; Therefore, although this specification has been described in detail the utility model with reference to each above-mentioned embodiment,, those of ordinary skill in the art should be appreciated that still and can make amendment or be equal to replacement the utility model; And all do not break away from the technological scheme and the improvement thereof of spirit and scope of the present utility model, and it all should be encompassed in the claim scope of the present utility model.

Claims

1, a kind of gas channel structure is characterized in that, comprises the gas channel that cylinder head, cylinder block and support are connected, and described gas channel communicates with the valve cage of described cylinder head at cylinder head side, and communicates with the engine motor oil chamber in described support side.

2, gas channel structure according to claim 1 is characterized in that, gas channel in the described cylinder block and the gas channel in the support are local the protrusion and are provided with.

3, gas channel structure according to claim 2 is characterized in that, the gas channel in the described cylinder block is positioned at the outside of cylinder clamping bolt, and the gas channel in the passage of described clamping bolt and the described cylinder block is shared.

4, according to any described gas channel structure in the claim 1 to 3, it is characterized in that the direct cast form of described gas channel.