CN218324994U - Anti-icing structure of respirator and engine - Google Patents

Abstract

The utility model belongs to the technical field of the engine, the utility model discloses a respirator anti-icing structure and engine, this respirator anti-icing structure includes the outlet duct, inner core pipe and end cover, the outlet duct includes pipe body and joint, the joint sets up in the one end of pipe body, the other end of pipe body is used for setting up with the respirator intercommunication, the inner core pipe sets up in the outlet duct, the circumferencial direction along the pipe body, inner core pipe and pipe body interval set up, the outer peripheral face of inner core pipe is located to the end cover, the end cover, inner core pipe and pipe body three enclose and establish into sealed chamber, introduce high temperature liquid to sealed intracavity and heat, prevent that the vapor of inner core pipe circulation from freezing and causing the jam, and simultaneously, the internal diameter that connects is greater than the internal diameter of pipe body, make vapor can't condense in the gas outlet of outlet duct, further realize, it is effectual to prevent frostbite, and avoid outlet duct jam and ice-cube to get into engine air intake system and cause the damage to spare part, stop the emergence of scuffing fault well, the normal operation of guarantee engine.

Description

Anti-icing structure of respirator and engine

Technical Field

The utility model relates to the technical field of engines, especially, relate to anti-icing structure of respirator and engine.

Background

During the operation of the engine, a small amount of high-pressure gas leaks from a combustion chamber of the engine to a crankcase, and in order to prevent the piston from being difficult to operate due to the abnormal pressure caused by excessive exhaust gas in the crankcase, the gas needs to be exhausted outwards through a breather. The outlet duct and the takeover lug connection that admits air of respirator, scurry the gas that gets into the crankcase and contain water and the temperature is high, and it is lower to admit air the temperature in cold areas, two strands of air currents are mutual intersection, the inevitable condensation that separates out of moisture, and then freeze at the gas outlet of respirator, cause the respirator to block up, thereby arouse crankcase pressure to rise fast, oil pan machine oil blowout, lead to drawing troubles such as jar, influence the normal operating of engine, probably cause even the ice-cube that freezes to get into engine air intake system, cause the damage to spare parts such as booster.

Therefore, there is a need for an anti-icing structure for a respirator and an engine to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an anti-icing structure of respirator and engine make vapor can't condense in the gas outlet of outlet duct, avoid the outlet duct to block up and the ice-cube gets into engine air intake system and causes the damage to spare part, stop the emergence of scuffing the jar trouble well, prevent frostbite effectually.

In order to solve the above problems existing in the prior art, the utility model adopts the following technical scheme:

a respirator anti-icing structure comprising:

the air outlet pipe comprises a pipe body and a joint, the joint is arranged at one end of the pipe body, the inner diameter of the joint is larger than that of the pipe body, and the other end of the pipe body is communicated with a respirator;

the inner core pipe is arranged in the gas outlet pipe and is arranged at intervals with the pipe body along the circumferential direction of the pipe body;

the end cover is sleeved on the peripheral surface of the inner core pipe, a sealing cavity is formed by the end cover, the inner core pipe and the pipe body in an enclosing mode, and high-temperature liquid is introduced into the sealing cavity.

Preferably, the end cover includes the end portion, connect in the connecting portion of end portion and connect in the fixed part of connecting portion, the end portion is provided with the air vent, the end portion the air vent with the inner core pipe intercommunication sets up, the fixed part connect in the inside wall that connects.

Preferably, the fixing part is connected with the air outlet pipe through welding.

Preferably, the anti-icing structure of the respirator further comprises a first sealing ring, the first sealing ring is sleeved on the inner core pipe, a first groove is formed in the outer peripheral surface of the inner core pipe, the inner ring of the first sealing ring abuts against the inner wall of the first groove, and the outer ring of the first sealing ring abuts against the connecting portion.

Preferably, the anti-icing structure of the respirator further comprises a second sealing ring, the second sealing ring is sleeved on the inner core pipe, a second groove is further formed in the outer peripheral surface of the inner core pipe, the inner ring of the second sealing ring abuts against the inner wall of the second groove, and the outer ring of the second sealing ring abuts against the inner peripheral surface of the pipe body.

Preferably, the outlet duct still includes water inlet pipe and outlet pipe way, the one end of water inlet pipe way with the one end of outlet pipe way all set up in the pipe body and with the seal chamber intercommunication sets up, the other end of water inlet pipe way with the other end of outlet pipe way all is used for connecting in the fluid reservoir that is equipped with high temperature liquid.

Preferably, the anti-icing structure of the respirator further comprises a support, the support is fixedly connected to the pipe body, and the support is used for being fixed on the flywheel shell.

Preferably, the fitting is integrally formed with the tube body, the fitting being adapted to communicate with the atmosphere.

Preferably, the inner wall of the joint is provided with an insulating layer.

In order to achieve the purpose, the utility model also provides an engine, which comprises the anti-icing structure of the respirator.

The utility model has the advantages that:

the utility model provides an anti-icing structure of respirator, outlet duct include the pipe body and connect, connect to set up in the one end of pipe body, connect and atmosphere intercommunication, and two ends are used for in addition of pipe body and communicate the setting with the respirator, and the inner core pipe sets up in the outlet duct. Along the circumferencial direction of pipe body, inner core pipe and the interval setting of pipe body, the outer peripheral face of inner core pipe is located to the end cover, and end cover, inner core pipe and pipe body three enclose and establish into sealed chamber. Introduce high temperature liquid to sealed intracavity and heat, prevent that the vapor of inner core pipe circulation from freezing and causing the jam, simultaneously, the internal diameter that connects is greater than the internal diameter of pipe body, makes vapor can't condense at the gas outlet of outlet duct, further realizes preventing frostbite, and it is effectual to prevent frostbite to avoid the outlet duct to block up and the ice-cube gets into engine air intake system and causes the damage to spare part, stop the emergence of drawing the jar trouble well, ensure the normal operating of engine.

The utility model provides an engine, including foretell respirator anti-icing structure. This anti-icing structure of respirator introduces high temperature liquid and heats the vapor of inner core pipe circulation, avoids vapor to condense at the gas outlet of outlet duct, and it is effectual to prevent frostbite, ensures the normal operating of engine.

Drawings

FIG. 1 is a schematic view of an anti-icing structure for a respirator in an embodiment of the present invention;

figure 2 is a cross-sectional view of an anti-icing structure for a respirator in an embodiment of the present invention.

Reference numerals:

1. an air outlet pipe; 11. a tube body; 12. a joint; 13. a water inlet pipeline; 14. a water outlet pipeline;

2. an inner core tube;

3. an end cap; 31. an end portion; 311. a vent hole; 32. a connecting portion; 33. a fixed part;

4. sealing the cavity;

5. a first seal ring;

6. a second seal ring;

7. and (4) a support.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used in the orientation or positional relationship shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

The outlet duct and the takeover lug connection that admits air of current respirator, scurry the gas that gets into the crankcase and contain water and the temperature is high, and it is lower to admit air the temperature in cold areas, two strands of air currents cross each other, the inevitable condensation that separates out of moisture, and then freeze at the gas outlet of respirator, cause the respirator to block up, thereby arouse crankcase pressure to rise fast, oil pan machine oil blowout, lead to drawing troubles such as jar, influence the normal operating of engine, the ice-cube that probably causes even to freeze gets into engine air intake system, cause the damage to spare parts such as booster. To this, the embodiment provides a respirator anti-icing structure, makes vapor can't condense at the gas outlet of outlet duct, avoids outlet duct jam and ice-cube entering engine air intake system and causes the damage to spare part, stops the emergence of scuffing the cylinder trouble well, and it is effectual to prevent frostbite.

In the present embodiment, as shown in fig. 1 to 2, the anti-icing structure of the respirator includes an outlet tube 1, an inner core tube 2, and an end cap 3. Wherein, outlet duct 1 includes pipe body 11 and joint 12, joint 12 sets up in the one end of pipe body 11, and the internal diameter that connects 12 is greater than the internal diameter of pipe body 11, two ends in addition of pipe body 11 are used for setting up with the respirator intercommunication, inner core pipe 2 sets up in outlet duct 1, along the circumferencial direction of pipe body 11, inner core pipe 2 sets up with pipe body 11 interval, the outer peripheral face of inner core pipe 2 is located to the 3 covers of end cover, end cover 3, inner core pipe 2 and pipe body 11 three enclose and establish into sealed chamber 4, let in high temperature liquid in the sealed chamber 4. Specifically, the outlet pipe 1 and the end cover 3 are made of a glass fiber reinforced PA6 material (PA 6+ GF 30) with the addition ratio of 30%, the wall thickness is 2mm, the mechanical strength, the wear resistance and the corrosion resistance are excellent, the temperature resistance can reach the highest temperature of high-temperature cooling liquid, and the heat dissipation can be reduced. The inner core pipe 2 is made of stainless steel materials, the wall thickness is 2mm, heat conduction can be accelerated by adopting the stainless steel materials, and gas in the inner core pipe 2 is guaranteed to be heated quickly. Pipe body 11 is linked together with the respirator, connect 12 and atmosphere intercommunication, the inner core pipe 2 is embedded in the inside of outlet duct 1, introduce high temperature liquid and heat in 4 sealed chambeies, prevent that the vapor of inner core pipe 2 circulation from freezing and causing the jam, and simultaneously, the internal diameter that connects 12 is greater than the internal diameter of pipe body 11, make vapor can't condense at the gas outlet of outlet duct 1, further realize preventing frostbite, it is effectual to prevent frostbite, and avoid 1 jam of outlet duct and ice-cube entering engine air intake system and cause the damage to spare part, stop the emergence of scuffing the cylinder trouble well, the normal operating of guarantee engine.

Further, with continued reference to fig. 1-2, the end cap 3 includes an end head portion 31, a connecting portion 32 connected to the end head portion 31, and a fixing portion 33 connected to the connecting portion 32, the end head portion 31 is provided with a vent hole 311, the vent hole 311 of the end head portion 31 is disposed in communication with the inner core tube 2, and the fixing portion 33 is connected to the inner side wall of the joint 12. Specifically, in order to facilitate the processing and assembly of the inner core tube 2, the inner core tube 2 is fixed in the tube body 11 using the end cap 3, and the gas in the breather enters from the other end of the tube body 11, flows through the inner core tube 2 and the vent hole 311 of the tip end portion 31, and is discharged to the atmosphere from the vent hole of the joint 12. Preferably, the fixing portion 33 is fixedly connected with the outlet pipe 1 by welding. Optionally, the inner core tube 2 may also be made of a plastic material, that is, the inner core tube 2 and the tube body 11 are integrally injection molded, so that a sealing cavity 4 is formed between the inner core tube 2 and the tube body 11, the arrangement of the end cover 3 is omitted, the process flow is reduced, and the cost is saved.

Further, with continued reference to fig. 1-2, the anti-icing structure of the respirator further includes a first sealing ring 5, the first sealing ring 5 is sleeved on the inner core tube 2, the outer circumferential surface of the inner core tube 2 is provided with a first groove, the inner ring of the first sealing ring 5 abuts against the inner wall of the first groove, and the outer ring of the first sealing ring 5 abuts against the connecting portion 32. Specifically, the first seal ring 5 is made of a heat-resistant rubber material, such as EPDM plastic, a terpolymer of ethylene, propylene and a non-conjugated diene, and has good sealing performance and high heat resistance.

Further, with continued reference to fig. 1-2, the anti-icing structure of the respirator further includes a second sealing ring 6, the second sealing ring 6 is sleeved on the inner core tube 2, the outer circumferential surface of the inner core tube 2 is further provided with a second groove, the inner ring of the second sealing ring 6 abuts against the inner wall of the second groove, and the outer ring of the second sealing ring 6 abuts against the inner circumferential surface of the tube body 11. Specifically, the second seal ring 6 is made of a heat-resistant rubber material, such as EPDM plastic, the most important characteristic being its excellent resistance to oxidation, ozone and corrosion, EPDM having the lowest specific gravity among all rubbers. It can absorb a large amount of filler and oil without greatly affecting the properties. Therefore, a rubber compound can be produced at a low cost. Through the sealing of the first sealing ring 5 and the second sealing ring 6, the high-temperature liquid in the sealing cavity 4 is ensured to be separated from the air outlet pipe 1, and the sealing effect is good.

Further, with continued reference to fig. 1-2, the outlet tube 1 further includes a water inlet pipeline 13 and a water outlet pipeline 14, one end of the water inlet pipeline 13 and one end of the water outlet pipeline 14 are both disposed on the tube body 11 and are communicated with the sealed cavity 4, and the other end of the water inlet pipeline 13 and the other end of the water outlet pipeline 14 are both used for being connected to a liquid tank filled with high-temperature liquid. Specifically, water inlet pipe 13 and outlet pipe 14 all set up with pipe body 11 integrated into one piece, moreover, the steam generator is simple in structure, high-temperature liquid can be provided by the coolant liquid of air compressor pump, and connect through rubber tube and clamp, water inlet pipe 13 communicates with the delivery port of fluid reservoir, outlet pipe 14 communicates with the water inlet of fluid reservoir, high-temperature liquid in the fluid reservoir lets in high-temperature liquid to seal chamber 4 through water inlet pipe 13, and flow back to the fluid reservoir through outlet pipe 14, heat the gas in inner core pipe 2, and the circulation is used, prevent to freeze.

Further, with continued reference to fig. 1-2, the anti-icing structure of the respirator further comprises a support 7, the support 7 is fixedly connected to the pipe body 11, and the support 7 is used for being fixed on the flywheel housing. Specifically, the holder 7 is fixed to the flywheel housing by a bolt.

Further, with continued reference to fig. 1-2, a fitting 12 is integrally formed with the tube body 11, the fitting 12 being adapted to communicate with the atmosphere. Specifically, a first groove and a second groove are processed on the inner core tube 2 in a turning mode, then a first sealing ring 5 and a second sealing ring 6 are respectively installed in the first groove and the second groove, the inner core tube 2 is inserted into the tube body 11, the inner core tube is fixed on the inner wall of the tube body 11 through the end cover 3 in a welding mode, the end cover 3, the inner core tube 2 and the tube body 11 form a sealing cavity 4, finally, air tightness inspection is carried out, liquid leakage is prevented, and normal performance of anti-freezing measures of an air outlet of a respirator is guaranteed.

Further, with continued reference to fig. 1-2, the inner wall of the fitting 12 is provided with insulation. Specifically, heat preservation fixed connection is in the inner wall of joint 12, and the heat preservation can play heat retaining effect, reduces the influence of low temperature environment to the outlet pipe, prevents that a small amount of vapor from freezing in gas outlet department.

The embodiment also provides an engine comprising the anti-icing structure of the respirator. This anti-icing structure of respirator introduces the vapor of high temperature liquid circulation of inner core pipe 2 and heats, avoids vapor to condense at the gas outlet of outlet duct 1, and it is effectual to prevent frostbite, ensures the normal operating of engine.

It is to be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. Numerous obvious variations, rearrangements and substitutions will now occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (10)

1. Respirator anti-icing structure, its characterized in that includes:

the air outlet pipe (1) comprises a pipe body (11) and a joint (12), the joint (12) is arranged at one end of the pipe body (11), the inner diameter of the joint (12) is larger than that of the pipe body (11), and the other end of the pipe body (11) is communicated with a respirator;

the inner core pipe (2) is arranged in the air outlet pipe (1), and the inner core pipe (2) and the pipe body (11) are arranged at intervals along the circumferential direction of the pipe body (11);

the end cover (3) is sleeved on the outer peripheral surface of the inner core pipe (2), a sealing cavity (4) is formed by the end cover (3), the inner core pipe (2) and the pipe body (11) in a surrounding mode, and high-temperature liquid is introduced into the sealing cavity (4).

2. The respirator ice protection structure according to claim 1, wherein the end cap (3) comprises an end head portion (31), a connecting portion (32) connected to the end head portion (31), and a fixing portion (33) connected to the connecting portion (32), wherein the end head portion (31) is provided with a vent hole (311), the vent hole (311) of the end head portion (31) is provided in communication with the inner core tube (2), and the fixing portion (33) is connected to an inner side wall of the joint (12).

3. Respirator ice protection structure according to claim 2, wherein said fixing portion (33) is connected to said outlet duct (1) by welding.

4. The anti-icing structure of the respirator according to claim 2, further comprising a first sealing ring (5), wherein the first sealing ring (5) is sleeved on the inner core tube (2), a first groove is formed in the outer circumferential surface of the inner core tube (2), an inner ring of the first sealing ring (5) abuts against the inner wall of the first groove, and an outer ring of the first sealing ring (5) abuts against the connecting portion (32).

5. The structure of claim 1, further comprising a second sealing ring (6), wherein the second sealing ring (6) is sleeved on the inner core tube (2), the outer circumferential surface of the inner core tube (2) is further provided with a second groove, the inner ring of the second sealing ring (6) abuts against the inner wall of the second groove, and the outer ring of the second sealing ring (6) abuts against the inner circumferential surface of the tube body (11).

6. The respirator anti-icing structure according to claim 1, wherein the air outlet pipe (1) further comprises a water inlet pipeline (13) and a water outlet pipeline (14), one end of the water inlet pipeline (13) and one end of the water outlet pipeline (14) are both arranged on the pipe body (11) and are communicated with the sealed cavity (4), and the other end of the water inlet pipeline (13) and the other end of the water outlet pipeline (14) are both used for being connected to a liquid tank filled with high-temperature liquid.

7. Respirator ice protection structure according to claim 1, further comprising a support (7), wherein said support (7) is fixedly connected to said tube body (11) and wherein said support (7) is intended to be fixed to a flywheel housing.

8. Respirator ice protection structure according to claim 1, characterized in that said joint (12) is integral with said tube body (11), said joint (12) being intended to be in communication with the atmosphere.

9. Respirator ice protection structure according to claim 1, characterized in that the inner wall of the joint (12) is provided with an insulation layer.

10. An engine comprising a respirator ice protection structure according to any one of claims 1 to 9.

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