CN216841872U

CN216841872U - Crankcase ventilation system of turbocharged diesel engine

Info

Publication number: CN216841872U
Application number: CN202220510631.8U
Authority: CN
Inventors: 姜涛
Original assignee: Shijiazhuang Houfeng Trade Co ltd
Current assignee: Shijiazhuang Houfeng Trade Co ltd
Priority date: 2022-03-10
Filing date: 2022-03-10
Publication date: 2022-06-28
Anticipated expiration: 2032-03-10

Abstract

The utility model relates to a crankcase technical field of engine just discloses a turbocharged diesel engine's crankcase ventilation system, which comprises a housin, the inboard joint of casing has first filter core, the top swing joint of casing has the apron, the top fixedly connected with driving motor of apron, driving motor's output fixedly connected with drive shaft, the bottom fixedly connected with tripe of drive shaft. This turbocharged diesel engine's crankcase ventilation system, driving motor through setting up, and the electric putter that the cooperation set up, rotation and electric putter's removal through driving motor during the use, the jam of first filter core has been avoided, the dust accumulation of the air filter core in the crankcase has been avoided, prevent that the air intake resistance of crankcase is too big, solve the problem that the air filter core blocks up the vent of the diesel engine's that arouses the crankcase and emits black cigarette fast, avoid diesel engine flameout phenomenon, the life of diesel engine's crankcase has been improved.

Description

Crankcase ventilation system of turbocharged diesel engine

Technical Field

The utility model belongs to the technical field of the crankcase of engine, specifically be a turbocharged diesel engine's crankcase ventilation system.

Background

When the engine works, high-pressure combustible mixed gas and burnt gas in the combustion chamber can more or less leak into a crankcase through a gap between the piston group and the cylinder, so that blow-by gas is generated; the blow-by gas is composed of unburned fuel gas, water vapor, waste gas and the like, which can dilute the engine oil, reduce the service performance of the engine oil and accelerate the oxidation and deterioration of the engine oil;

during the operation of the diesel engine, when the piston moves downwards, gas (including leaked fuel gas) in the crankcase is compressed, so that the gas pressure in the crankcase is increased, oil at the joint surface of the oil pan leaks outwards, and resistance is generated to the movement of the piston, therefore, the crankcase of the diesel engine has a vent hole communicated with the atmosphere.

However, when the crankcase of the diesel engine on the market works for a long time, dust accumulation can occur in the air filter element in the crankcase, so that the air filter element is blocked by the dust, the air inlet resistance of the crankcase is too large, black smoke is emitted from the air vent of the crankcase of the diesel engine, even the diesel engine stalls, and the service life of the crankcase of the diesel engine is shortened.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned condition, for overcoming prior art's defect, the utility model provides a turbocharged diesel engine's crankcase ventilation system, the effectual problem of proposing in having solved above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a crankcase ventilation system of a turbocharged diesel engine comprises a shell, wherein a first filter element is clamped on the inner side of the shell, a cover plate is movably connected to the top of the shell, a driving motor is fixedly connected to the top of the cover plate, a driving shaft is fixedly connected to the output end of the driving motor, a louver is fixedly connected to the bottom of the driving shaft, a connecting groove is formed in the inner wall of the cover plate, a second filter element is fixedly connected to the inner top wall of the cover plate, an electric push rod is fixedly connected to the inner wall of the cover plate, a sliding groove is formed in the inner wall of the cover plate, a sliding plate is fixedly connected to the tail end of the electric push rod and close to the inner side of the sliding groove, a soft hairbrush is fixedly connected to the bottom of the sliding plate, a limiting clamping block is fixedly connected to the top of the shell, a limiting clamping groove is formed in the inner wall of the cover plate, and a fastening screw is connected to the inner wall of the cover plate in a threaded manner, the inner wall of the limiting clamping block is provided with a thread groove.

Preferably, the louver is located inside the connecting groove, and the rotation of the connecting groove is used for blowing dust attached to the surface of the first filter element.

Preferably, the second filter element is uniformly distributed on the inner wall of the cover plate, and the second filter element is used for filtering dust on the inner side of the connecting groove.

Preferably, the electric push rod is used for pushing the sliding plate to move, and the driving motor is used for driving the driving shaft to rotate.

Preferably, the size of the limiting clamping block is matched with that of the limiting clamping groove, and the limiting clamping block is located on the inner side of the limiting clamping groove.

Preferably, the size of the fastening screw is adapted to the size of the thread groove, the fastening screw is in threaded connection with the thread groove, and the fastening screw is used for fixing the cover plate.

Compared with the prior art, the beneficial effects of the utility model are that:

1) the utility model discloses a diesel engine's air filter, including the air filter, the air filter blocks up the air filter, the air filter sets up the electric putter, and the air filter blocks up the air filter, the work, through the CD-ROM drive motor who sets up, and the electric putter that the cooperation set up, rotation and the electric putter's that passes through the CD-ROM drive motor removal during use, the jam of first filter core has been avoided, the dust accumulation of the air filter in the crankcase has been avoided, prevent that the air resistance of crankcase is too big, solve the problem that the air filter blocks up the vent of the diesel engine's crankcase that arouses fast and smoke, avoid the flameout phenomenon of diesel engine, the life of diesel engine's crankcase has been improved.

2) The spacing fixture block through setting to and the spacing draw-in groove that the cooperation set up, through the joint of spacing fixture block with spacing draw-in groove during the use, realized the quick installation and the dismantlement of casing with the apron, labour saving and time saving is favorable to clearing up the second filter core.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic sectional structure of the present invention;

fig. 2 is a schematic structural view of the electric push rod of the present invention;

fig. 3 is a schematic structural diagram of a point a in fig. 1 according to the present invention.

In the figure: 1. a housing; 2. a first filter element; 3. a cover plate; 4. a drive motor; 5. a drive shaft; 6. louver blades; 7. a second filter element; 8. a slide plate; 9. a soft brush; 10. connecting grooves; 11. an electric push rod; 12. a chute; 13. a limiting clamping block; 14. a limiting clamping groove; 15. fastening screws; 16. a thread groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments; based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the first embodiment, as shown in fig. 1-3, the present invention includes a crankcase ventilation system of a turbocharged diesel engine, which includes a housing 1, a first filter element 2 is clamped inside the housing 1, a cover plate 3 is movably connected to the top of the housing 1, a driving motor 4 is fixedly connected to the top of the cover plate 3, a driving shaft 5 is fixedly connected to an output end of the driving motor 4, a louver 6 is fixedly connected to the bottom of the driving shaft 5, the louver 6 is located inside a connecting groove 10, the connecting groove 10 is rotated to blow dust attached to the surface of the first filter element 2, the connecting groove 10 is formed on the inner wall of the cover plate 3, a second filter element 7 is fixedly connected to the inner top wall of the cover plate 3, the second filter element 7 is uniformly distributed on the inner wall of the cover plate 3, the second filter element 7 is used for filtering dust inside the connecting groove 10, an electric push rod 11 is fixedly connected to the inner wall of the cover plate 3, the electric push rod 11 is used for pushing the slide plate 8 to move, driving motor 4 is used for driving drive shaft 5's rotation, spout 12 has been seted up to apron 3's inner wall, electric putter 11's terminal just is close to spout 12's inboard fixedly connected with slide 8, slide 8's bottom fixedly connected with pappus brush 9, the spacing fixture block 13 of top fixedly connected with of casing 1, the size of spacing fixture block 13 suits with the size of spacing draw-in groove 14, spacing fixture block 13 is located the inboard of spacing draw-in groove 14, spacing draw-in groove 14 has been seted up to apron 3's inner wall, apron 3's inner wall threaded connection has fastening screw 15, fastening screw 15's size suits with the size of thread groove 16, fastening

screw

15 and 16 threaded connection of thread groove, fastening screw 15 is used for fixed cover plate 3, thread groove 16 has been seted up to spacing fixture block 13's inner wall.

The working principle is as follows: when a crankcase of the diesel engine works, external air can enter a crankcase ventilation opening of the diesel engine through the shell 1, dust in the external air can be filtered under the action of the first filter element 2, when dust accumulation occurs on the inner side of the first filter element 2, black smoke can be emitted from the crankcase ventilation opening of the diesel engine, the driving motor 4 is started at the moment, the driving motor 4 drives the driving shaft 5 to rotate, the louver 6 on the inner side of the connecting groove 10 is driven to rotate along with the connecting groove, meanwhile, the power supply of the electric push rod 11 is switched on, the electric push rod 11 is controlled to extend, the electric push rod 11 pushes the sliding plate 8 to move along the sliding groove 12, the movement of the sliding plate 8 drives the movement of the soft brush 9, the electric push rod 11 is controlled again, the electric push rod 11 is shortened, the reciprocating movement of the sliding plate 8 can be realized, and the soft brush 9 can clean the dust on the surface of the first filter element 2, then the dust on the surface of the first filter element 2 can enter the connecting groove 10, and meanwhile, under the rotating action of the louver 6, the dust of the connecting groove 10 can be extracted and discharged through the second filter element 7, and the dust is adsorbed on the surface of the second filter element 7 under the filtering action of the second filter element 7, so that the blockage of the first filter element 2 is avoided, the dust accumulation of an air filter element in a crankcase is avoided, the excessive air inlet resistance of the crankcase is prevented, the problem that the vent of the crankcase of the diesel engine emits black smoke caused by the blockage of the air filter element is quickly solved, the flameout phenomenon of the diesel engine is avoided, and the service life of the crankcase of the diesel engine is prolonged;

when needs clear up second filter core 7, through twisting fastening screw 15, make fastening screw 15 and thread groove 16 separate, take out apron 3 this moment, make the spacing draw-in groove 14 and the spacing fixture block 13 of apron 3 inner wall can, with the reason, through aiming at spacing fixture block 13 and joint with spacing draw-in groove 14, tighten fastening screw 15, make fastening

screw

15 and 16 threaded connection of thread groove, can realize casing 1 and apron 3 fixed, casing 1 and apron 3's quick installation and dismantlement have been realized, time saving and labor saving, be favorable to clearing up second filter core 7.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A crankcase ventilation system of a turbocharged diesel engine, comprising a casing (1), characterized in that: the filter comprises a shell (1), a first filter element (2) is clamped on the inner side of the shell (1), a cover plate (3) is movably connected to the top of the shell (1), a driving motor (4) is fixedly connected to the top of the cover plate (3), a driving shaft (5) is fixedly connected to the output end of the driving motor (4), a louver (6) is fixedly connected to the bottom of the driving shaft (5), a connecting groove (10) is formed in the inner wall of the cover plate (3), a second filter element (7) is fixedly connected to the inner top wall of the cover plate (3), an electric push rod (11) is fixedly connected to the inner wall of the cover plate (3), a sliding groove (12) is formed in the inner wall of the cover plate (3), a sliding plate (8) is fixedly connected to the end of the electric push rod (11) and close to the inner side of the sliding groove (12), a soft brush (9) is fixedly connected to the bottom of the sliding plate (8), and a limiting clamping block (13) is fixedly connected to the top of the shell (1), the inner wall of the cover plate (3) is provided with a limiting clamping groove (14), the inner wall of the cover plate (3) is in threaded connection with a fastening screw (15), and the inner wall of the limiting clamping block (13) is provided with a threaded groove (16).

2. A crankcase ventilation system for a turbocharged diesel engine as claimed in claim 1 wherein: the louver (6) is positioned on the inner side of the connecting groove (10), and the rotation of the connecting groove (10) is used for blowing dust attached to the surface of the first filter element (2).

3. The crankcase ventilation system for a turbocharged diesel engine of claim 1, wherein: the second filter element (7) is uniformly distributed on the inner wall of the cover plate (3), and the second filter element (7) is used for filtering dust on the inner side of the connecting groove (10).

4. A crankcase ventilation system for a turbocharged diesel engine as claimed in claim 1 wherein: the electric push rod (11) is used for pushing the sliding plate (8) to move, and the driving motor (4) is used for driving the driving shaft (5) to rotate.

5. A crankcase ventilation system for a turbocharged diesel engine as claimed in claim 1 wherein: the size of the limiting clamping block (13) is matched with that of the limiting clamping groove (14), and the limiting clamping block (13) is located on the inner side of the limiting clamping groove (14).

6. A crankcase ventilation system for a turbocharged diesel engine as claimed in claim 1 wherein: the size of the fastening screw (15) is adapted to the size of the thread groove (16), the fastening screw (15) is in threaded connection with the thread groove (16), and the fastening screw (15) is used for fixing the cover plate (3).