CN209925050U

CN209925050U - Heating structure of engine crankcase breather pipe

Info

Publication number: CN209925050U
Application number: CN201920601625.1U
Authority: CN
Inventors: 周书忠
Original assignee: GUANGDONG HENGBO FILTER CO Ltd
Current assignee: GUANGDONG HENGBO FILTER CO Ltd
Priority date: 2019-04-28
Filing date: 2019-04-28
Publication date: 2020-01-10
Anticipated expiration: 2029-04-28

Abstract

The utility model discloses a heating structure of engine crankcase breather pipe, the breather pipe that includes engine intake pipe and intercommunication crankcase and intake pipe, the breather pipe includes the first cover connecting pipe of being connected with the crankcase, the second cover connecting pipe of being connected with the intake pipe and installs the heating element between the two, the heating element includes the siphunculus of intercommunication first, second cover connecting pipe, the siphunculus external seal cover is equipped with the sleeve, form the inner passage between its inner wall and the siphunculus outer wall, the sleeve both ends are equipped with the joint of intercommunication inner passage respectively, the joint cover is equipped with the pipe and is communicated with the cooler bin of vehicle and make the high temperature liquid in the cooler bin circulate among cooler bin, pipe and inner passage; the engine during operation, the circulation of the high-temperature water in the cooler bin between cooler bin, pipe and inside passage circulates, makes heating element's siphunculus generate heat, and the waste gas of siphunculus of flowing through can be discharged after the heating, can effectively restrain and condense into ice after converging with the cold air, avoids appearing the condition that the breather pipe blockked up.

Description

Heating structure of engine crankcase breather pipe

Technical Field

The utility model relates to a ventilation structure of vehicle engine crankcase specifically is the heating structure of breather pipe.

Background

When the engine works, when a piston moves, working gas combusted at high pressure in a combustion chamber can more or less flow into a crankcase, main components of the waste gas are unburned fuel gas, water vapor and the like, engine oil in the crankcase can be diluted, oxidation and deterioration of the engine oil are accelerated, performance is reduced, and acid gas carried in the waste gas can enter a lubricating system, so that parts of the engine are corroded and abraded in an accelerated manner; on the other hand, the continuous entry of exhaust gas increases the pressure in the crankcase, which breaks the crankcase seal, causing oil leakage.

For this reason, a breather pipe is generally provided in the crankcase to discharge exhaust gas into the intake pipe of the engine, and the exhaust gas discharged from the crankcase is returned to the combustion chamber through the intake pipe for secondary combustion. However, in cold weather areas, the temperature of air sucked by a vehicle through an air inlet system is very low, waste gas discharged by a crankcase is intersected with cold air, so that water vapor in blow-by gas is frozen and solidified.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model provides a structure for heating the breather pipe of the engine crankcase and preventing the breather pipe from being blocked by icing

The utility model provides a technical scheme that its technical problem adopted is:

the utility model provides a heating structure of engine crankcase breather pipe, including engine intake pipe and intercommunication crankcase with the breather pipe of intake pipe, the breather pipe includes the first cover of being connected with the crankcase and takes over, with intake-tube connection's second cover and install the heating element between the two above-mentioned, heating element is including the siphunculus of the first, second cover of intercommunication pipe, and the siphunculus oversheath is equipped with the sleeve, forms the inside passage between its inner wall and the siphunculus outer wall, the sleeve both ends are equipped with the joint of intercommunication inside passage respectively, and the joint cover is equipped with the coolant tank intercommunication of pipe and vehicle and makes the circulation of the high temperature liquid in the coolant tank between coolant tank, pipe and inside passage.

The sleeve narrows to the through pipe and the inner wall is vertically and annularly provided with a flow inhibiting rib which is abutted against the outer wall of the through pipe.

The connecting parts of the first and second sleeving pipes and the catheter are sleeved with a hose clamp.

The heating component is made of metal.

The utility model has the advantages that: the utility model discloses a breather pipe is by first, second cover is taken over and heating element constitutes, through heating element's siphunculus intercommunication between two cover pipes, the outside seal of siphunculus has cup jointed the sleeve, form internal channel between sleeve and the siphunculus, the sleeve both ends are equipped with the cooler bin that connects through pipe access vehicle, engine during operation, the high-temperature water in the cooler bin is at the cooler bin, circulation between pipe and the internal channel circulates, make heating element's siphunculus generate heat, the waste gas of the siphunculus of flowing through can be discharged after the heating, can effectively restrain and solidify into ice after converging with the cold air, the condition of breather pipe jam is avoided appearing.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a cross-sectional view of the present invention;

FIG. 3 is an enlarged view at A of FIG. 2;

fig. 4 is a schematic view of a sleeve.

Detailed Description

Referring to fig. 1 to 4, a heating structure of an engine crankcase breather pipe includes an engine intake pipe 1 and a breather pipe 2 communicating the crankcase 3 and the intake pipe 1, the breather pipe 2 includes a first connecting pipe 21 connected to the crankcase 3, a second connecting pipe 22 connected to the intake pipe 1, and a heating element 4 installed therebetween, the heating element 4 includes a through pipe 41 communicating the first connecting pipe 21 and the second connecting pipe 22, a sleeve 42 is externally sleeved on the through pipe 41, an inner channel 5 is formed between an inner wall of the sleeve and an outer wall of the through pipe 41, two ends of the sleeve 42 are respectively provided with a joint 43 communicating the inner channel 5, the joint 43 is sleeved on the pipe 6 and is communicated with a cooling tank of a vehicle, high-temperature liquid in the cooling tank circulates among the cooling tank, the pipe 6 and the inner channel 5 due to a pressure difference therein, so that the through pipe 41 of the heating element 4 generates heat, and exhaust gas flowing through the through pipe 41, can effectively inhibit ice formation after being converged with cold air, and avoid the condition that the vent pipe 2 is blocked.

As the utility model discloses an optimal scheme, sleeve 42 has to the vertical ring cloth of siphunculus 41 narrowing and inner wall and presses down muscle 44 and lean on at siphunculus 41 outer wall, realizes the installation that sleeve 42 is firm simultaneously, slows down the flow of high-temperature water in passageway 5, makes the high temperature hydroenergy full aspect contact siphunculus 41 of circulation in passageway 5 heat, makes the programming rate of siphunculus 41 faster.

Preferably, the connecting parts of the first sleeving pipe 21, the second sleeving pipe 22 and the conduit 6 are sleeved with the hose clamp 7, so that the connection tightness is ensured, and the sealed circulation in the engine pipeline is ensured.

Preferably, the heat generating component 4 is made of metal material, so that the structure is firmer, and the heat transfer speed is high and stable.

Claims

1. The utility model provides a heating structure of engine crankcase breather pipe, includes engine intake pipe (1) and intercommunication crankcase (3) and breather pipe (2) of intake pipe (1), its characterized in that: breather pipe (2) include first cover takeover (21) be connected with crankcase (3), second cover takeover (22) be connected with intake pipe (1) and install heating element (4) between the two of the aforesaid, heating element (4) are including siphunculus (41) of first cover takeover (21) of intercommunication and second cover takeover (22), and siphunculus (41) external seal cover is equipped with sleeve (42), forms inside passage (5) between its inner wall and siphunculus (41) outer wall, sleeve (42) both ends are equipped with joint (43) of intercommunication inside passage (5) respectively, and joint (43) cover is equipped with pipe (6) and the cooler bin intercommunication of vehicle and makes the circulation of the high temperature liquid in the cooler bin between cooler bin, pipe (6) and inside passage (5).

2. The heating structure according to claim 1, wherein: the sleeve (42) narrows towards the through pipe (41), and the inner wall is vertically and annularly provided with a flow restraining rib (44) which is abutted against the outer wall of the through pipe (41).

3. The heating structure according to claim 1, wherein: the connecting parts of the first sleeving pipe (21), the second sleeving pipe (22) and the catheter (6) are sleeved with a hose clamp (7).

4. The heating structure according to claim 1, wherein: the heating component (4) is made of metal.