CN203009121U

CN203009121U - Overhead air filter for engine of passenger vehicle

Info

Publication number: CN203009121U
Application number: CN 201220744666
Authority: CN
Inventors: 张志华
Original assignee: ZHEJIANG HENGBO AUTOMOBILE AND MOTORCYCLE PARTS CO Ltd
Current assignee: Hengbo Holdings Co ltd
Priority date: 2012-12-31
Filing date: 2012-12-31
Publication date: 2013-06-19
Anticipated expiration: 2022-12-31

Abstract

The utility model discloses an overhead air filter for an engine of a passenger vehicle. The overhead air filter for the engine of the passenger vehicle comprises an air filter upper shell body and an air filter lower shell body, and a filter element is arranged inside the air filter lower shell body. The lower shell body and the upper shell body form a filter cavity, and the space of the lower portion of the filter element is communicated with a dirty air pipe. The inner portion of the air filter upper shell body is arranged into a bending passage. The upper shell body is divided into the filter cavity and an expansion cavity, the filter cavity and the expansion cavity are communicated with each other, and reinforcing ribs are arranged in the middle of the filter cavity and the expansion cavity to support a filter element installation surface. The expansion cavity of the bending passage is communicated with a clean air pipe. Through the mode of adding the expansion cavity, the position of a connector is shifted to the position of the air filter lower shell body, and therefore the height of the air filter is reduced. The expansion cavity and the air filter upper shell body are connected through welding, the noise eliminating function of twice expansion is achieved, induction noise is reduced, constituent parts and producing procedures are reduced, cost is reduced, and meanwhile producing efficiency is improved, sealing performance is enhanced, and a service life is prolonged.

Description

A kind of passenger vehicle engine overhead air-strainer

Technical field

The utility model relates to the passenger car gas handling system, particularly a kind of air filter of compact type passenger vehicle engine overhead.

Background technique

At present, for sufficient air is provided to engine combustion, reduce airborne particle dust to the wearing and tearing of cylinder and annex thereof, eliminate the engine charge noise, the common practice is to motor, a kind of air filter to be set, the traditional design of this device is to adopt air-strainer upper and lower casing and filter core to realize, be provided with connecting tube on the air-strainer upper shell, be connected with motor cleaned air pipe, be provided with dirty air connecting tube on the air-strainer lower shell body, the silencer elements such as resonant cavity are set on cleaned air pipe or dirty air duct.

Above air filtering device structure can be served problem by band in the middle of reality is used, it comprises: one, the height of air-strainer is higher, motor overhead difficulty, and car load pedestrian protecting rules can't pass; Two, the engine nacelle space is compact, and the air-strainer volume can not reach designing requirement, and the sacrifice motor is economical, power character, also needs to set up silencer element and eliminates induction noise; Three, the silencer element such as resonant cavity is arranged with air conduit and is moved towards limited, and intake resistance is high; Four, the silencer element such as resonant cavity needs fastening piece to connect, and guarantees simultaneously its fitting tight, and complex process manufacturing efficiency is low, high expensive.

The model utility content

for the problems referred to above, the utility model has designed a kind of passenger vehicle engine overhead air-strainer, with the cleaned air interface tube of script on the air-strainer upper shell, by increasing the mode of an expansion cavity, the position of interface is transformed into the lower shell body position of air-strainer, thereby reduce the height of air-strainer, adopt welding procedure that expansion cavity is connected with the air-strainer upper shell, realized the acoustic attenuation performance of quadratic extension, reduced induction noise, constituent part and production process have been reduced, reducing costs improving production efficiency simultaneously, strengthen sealability and increase the service life.

For achieving the above object, the utility model is by the following technical solutions:

A kind of passenger vehicle engine overhead air-strainer, comprise the air-strainer upper and lower casing, be provided with filter core in described air-strainer lower shell body, lower shell body and upper shell form filtering cavity, the filter core lower space is communicated with dirty air duct, it is characterized in that: a curved pathway is arranged in air-strainer upper shell inside, upper shell is divided into filtering cavity and two cavitys of expansion cavity, be interconnected between two cavitys, the centre has stiffening rib to support the filter core attachment face, and the expansion cavity in curved pathway is communicated with the cleaned air pipe.

Further, above-mentioned expansion cavity bottom is provided with cleaned air pipe connection mouth, expansion cavity and air-strainer upper shell employing welding procedure formation sealing channel.

Further, above-mentioned air-strainer lower shell body is provided with guide plate.

The utility model has designed a kind of passenger vehicle engine overhead air-strainer, reduced air-strainer height originally, effectively silencer element is combined with air-strainer, reduced induction noise, constituent part and production process have been reduced, reducing costs improving production efficiency simultaneously, strengthen sealability and increase the service life.

When mounted, the utility model only need connect the cleaned air pipe and dirty air duct gets final product, and has greatly simplified assembly process, has reduced the height of air-strainer, has effectively solved the difficult problem of Arrangement of Engine-room insufficient space.

In addition, the utility model motor overhead air-strainer is provided with guide plate on the air-strainer lower shell body, greatly reduce the intake resistance of air-strainer, has promoted the power of motor, reduce oil consumption, reduce to a certain extent the toxic emission of motor.

The utility model motor overhead air-strainer effectively combines silencer element with air-strainer simultaneously, has reduced induction noise, has reduced constituent part and production process, is reducing costs improving production efficiency simultaneously.

Description of drawings

Fig. 1, plane structure sectional view of the present utility model.

Embodiment

As shown in Figure 1, a kind of passenger vehicle engine overhead air-strainer, comprise air-strainer upper shell 1, lower shell body 2, be provided with filter core 3 in described air-strainer lower shell body 2, lower shell body 2 forms filtering cavity 10 with air-strainer upper shell 1, and lower shell body connecting tube 23 directly is connected with dirty air duct, is provided with 4 guide plates 4 in air-strainer lower shell body 2 inside, guide plate 4 can change airflow direction, avoids eddy current to form.A curved pathway 11 is arranged in air-strainer upper shell 1 inside, upper shell 1 is divided into filtering

cavity

10 and 20 two cavitys of expansion cavity, be interconnected between two cavitys, the centre has stiffening rib to support the filter core attachment face, and the expansion cavity 20 in curved pathway is communicated with the cleaned air pipe.

Wherein expansion cavity 20 adopts welding procedures to form sealing channel by air-strainer upper shell 1 and expansion cavity body 21 to weld and form, expansion cavity 20 bottoms are provided with cleaned air pipe connection mouth 22, and cleaned air pipe connection mouth 22 directly is connected with motor by rubber corrugated pipe.

Model utility motor overhead air-strainer effectively combines silencer element with air-strainer, reduced induction noise, constituent part and production process have been reduced, effectively improving production efficiency can reduced costs simultaneously, our experiments show that, than conventional construction, cost approximately 15%, improving productivity approximately 20%.When mounted, the utility model only need connect the cleaned air pipe and dirty air duct gets final product, and has greatly simplified assembly process, has reduced the height of air-strainer, has effectively solved the difficult problem of Arrangement of Engine-room insufficient space.In addition, the utility model motor overhead air-strainer is provided with guide plate on the air-strainer lower shell body, greatly reduce the intake resistance of air-strainer, has promoted the power of motor, reduce oil consumption, reduce to a certain extent the toxic emission of motor.

To sum up, the utility model motor overhead air filtering device structure, its performance can satisfy 1. original intake resistance＜1.2kPa; 2. filtration efficiency 〉=98.5%; 3. sealing 100% is without leaking; 4. induction noise is lower than 1000rpm@85 (dB A)～6000rpm@110 (dB A) aim curve.

The above, it is only better embodiment of the present utility model, be not that any pro forma restriction is done in invention, every foundation know-why of the present invention still belongs in the scope of technical solution of the present invention any simple modification made for any of the above embodiments, equivalent variations or modification.

Claims

1. passenger vehicle engine overhead air-strainer, comprise the air-strainer upper and lower casing, be provided with filter core in described air-strainer lower shell body, lower shell body and upper shell form filtering cavity, the filter core lower space is communicated with dirty air duct, it is characterized in that: a curved pathway is arranged in air-strainer upper shell inside, upper shell is divided into filtering cavity and two cavitys of expansion cavity, be interconnected between two cavitys, the centre has stiffening rib to support the filter core attachment face, and the expansion cavity in curved pathway is communicated with the cleaned air pipe.

2. a kind of passenger vehicle engine overhead air-strainer as claimed in claim 1 is characterized in that: above-mentioned expansion cavity bottom is provided with cleaned air pipe connection mouth, and expansion cavity adopts welding procedure formation sealing channel with the air-strainer upper shell.

3. a kind of passenger vehicle engine overhead air-strainer as claimed in claim 1, it is characterized in that: above-mentioned air-strainer lower shell body is provided with guide plate.