CN207554182U

CN207554182U - Flow-guiding structure before adjustable booster

Info

Publication number: CN207554182U
Application number: CN201721392091.3U
Authority: CN
Inventors: 宁超成
Original assignee: SAIC Motor Corp Ltd
Current assignee: SAIC Motor Corp Ltd
Priority date: 2017-10-25
Filing date: 2017-10-25
Publication date: 2018-06-29
Anticipated expiration: 2027-10-25

Abstract

The utility model discloses flow-guiding structure before a kind of adjustable booster, including retainer ring, rotating ring and four flexible guide vanes, retainer ring, which is fixed on booster, calms the anger at side entrance, a circle groove is opened up on the fascia edge of retainer ring, rotating ring is sheathed on groove, the inner wall of retainer ring is fixed with cross frame, the centre position of rotating ring has intermediate rotary shaft, intermediate rotary shaft is mutually fixed by the inner wall of four lateral frames and rotating ring, four lateral frames form cross, four guide vanes correspond respectively with four small racks of four lateral frames and cross frame, one end of each guide vane is fixed on the correspondence small rack of cross frame, the other end is fixed on corresponding lateral frame.Air-flow is imported by the direction of booster pinch roller under low engine speeds, so as to reduce intake resistance, reduces the loss of machine of torque caused by crushing becomes larger；And in booster operation interval, can active accommodation flow-guiding structure, reduce the influence to air inlet.

Description

Flow-guiding structure before adjustable booster

Technical field

The utility model belongs to engine aspirating system technical field, leading more particularly to a kind of adjustable booster Flow structure.

Background technology

For commonly used turbocharged engine, limited by the characteristic of turbocharger, engine speed it is relatively low, Booster is inoperative when extraction flow is less, and is influenced by booster pinch roller, can increase the resistance of air inlet instead.Cause This engine with supercharger torque in the slow-speed of revolution is insufficient, embodies on vehicle that both dynamic property was poor.

Utility model content

The utility model is in view of the problems of the existing technology and insufficient, provides water conservancy diversion knot before a kind of adjustable booster Structure can will enter booster, the pressure loss caused by reducing booster pinch roller in low charge flow rate after gas flow guiding.

The utility model is to solve above-mentioned technical problem by following technical proposals：

The utility model provides flow-guiding structure before a kind of adjustable booster, and feature is, including retainer ring, rotation Change and four flexible guide vanes, which, which is fixed on booster, calms the anger at side entrance, the outer wall of the retainer ring A circle groove is offered on edge, which is sheathed on the groove, and the inner wall of the retainer ring is fixed with cross frame, the rotation The centre position of change has an intermediate rotary shaft, which is mutually fixed by the inner wall of four lateral frames and the rotating ring, Four lateral frames formed it is cross, four guide vanes respectively with four lateral frames and four ramuscules of the cross frame Frame corresponds, one end of each guide vane is fixed on the correspondence small rack of the cross frame, the other end is fixed on pair On the lateral frame answered.

Preferably, the guide vane is rectangle.

On the basis of common knowledge of the art, above-mentioned each optimum condition, can arbitrarily combine to get the utility model respectively compared with Good example.

The positive effect of the utility model is：

The utility model imports air-flow under low engine speeds by the direction of booster pinch roller, so as to reduce into vapour lock Power reduces the loss of machine of torque caused by crushing becomes larger；And in booster operation interval, the design can active accommodation water conservancy diversion knot Structure reduces the influence to air inlet.

Description of the drawings

Front schematic views of the Fig. 1 for flow-guiding structure before adjustable booster of the utility model preferred embodiment.

Schematic rear views of the Fig. 2 for flow-guiding structure before adjustable booster of the utility model preferred embodiment.

Fig. 3 is the structure diagram of flow-guiding structure before adjustable booster under slow-speed of revolution operating mode.

Fig. 4 is the structure diagram of flow-guiding structure before adjustable booster under high speed conditions.

Specific embodiment

Purpose, technical scheme and advantage to make the utility model embodiment are clearer, new below in conjunction with this practicality Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched The embodiment stated is the utility model part of the embodiment, instead of all the embodiments.Based on the implementation in the utility model Example, those of ordinary skill in the art's all other embodiments obtained under the premise of creative work is not made all belong to In the range of the utility model protection.

As illustrated in fig. 1 and 2, the present embodiment provides flow-guiding structure before a kind of adjustable booster, including retainer ring 1, Rotating ring 2 and four flexible guide vanes 3, the guide vane 3 are rectangle, which is fixed on booster pressure Gas side inlet offers a circle groove on the fascia edge of the retainer ring 1, which is sheathed on the groove, this is fixed The inner wall of ring 1 is fixed with cross frame 4, and the centre position of the rotating ring 2 has an intermediate rotary shaft 5, which passes through four Root lateral frame 6 and the inner wall of the rotating ring 2 are mutually fixed, which forms cross, which distinguishes It is corresponded with four small racks of four lateral frames 6 and the cross frame 4, one end of each guide vane 3 is fixed on On the correspondence small rack of the cross frame 4, the other end is fixed on corresponding lateral frame 6.

Rotating ring 2 can be adjusted under motor driving around the rotation of intermediate rotary shaft 5, and guide vane 3 is elastic material, is led Stream blade 3 can change shape under the drive of rotating ring 2, form water conservancy diversion leaf fan.

By the monitoring to air inflow and engine speed, the work operating mode of booster, the active accommodation water conservancy diversion knot are judged Structure improves the resistance of air inlet, promotes the performance of engine.

As shown in figure 3, when engine is in the slow-speed of revolution, rotating ring 2 rotates by a certain angle, and air-flow passes through the flow-guiding structure The swirling eddy for becoming identical with booster pinch roller direction afterwards enters booster, can reduce the pressure loss.

As shown in figure 4, when engine is in high rotating speed, booster has reached working condition, and rotating ring 2 is in zero-bit State, does not carry out water conservancy diversion processing to air-flow, and the pressure loss and air-flow generated so as to reduce the flow-guiding structure under big flow is made an uproar Sound.

Although the foregoing describe specific embodiment of the present utility model, it will be appreciated by those of skill in the art that These are merely examples, and the scope of protection of the utility model is defined by the appended claims.Those skilled in the art Member can make these embodiments numerous variations or repair under the premise of the principle and essence without departing substantially from the utility model Change, but these change and modification each fall within the scope of protection of the utility model.

Claims

1. flow-guiding structure before a kind of adjustable booster, which is characterized in that it includes retainer ring, rotating ring and four have bullet The guide vane of property, which, which is fixed on booster, calms the anger at side entrance, and a circle is offered on the fascia edge of the retainer ring Groove, the rotating ring are sheathed on the groove, and the inner wall of the retainer ring is fixed with cross frame, the centre position tool of the rotating ring There is an intermediate rotary shaft, which is mutually fixed by the inner wall of four lateral frames and the rotating ring, which forms Cross, which corresponds respectively with four small racks of four lateral frames and the cross frame, each One end of a guide vane is fixed on the correspondence small rack of the cross frame, the other end is fixed on corresponding lateral frame.

2. flow-guiding structure before adjustable booster as described in claim 1, which is characterized in that the guide vane is rectangular Shape.