CN201141413Y

CN201141413Y - Oil return structure of hydraulic retarder

Info

Publication number: CN201141413Y
Application number: CNU2007201201643U
Authority: CN
Inventors: 凌兆蔚; 黄斌; 李天维; 闻维维
Original assignee: TEERJIA SCIENCE-TECHNOLOGY Co Ltd SHENZHEN
Current assignee: TEERJIA SCIENCE-TECHNOLOGY Co Ltd SHENZHEN
Priority date: 2007-05-18
Filing date: 2007-05-18
Publication date: 2008-10-29
Anticipated expiration: 2017-05-18

Abstract

The utility model relates to an oil-return structure of the hydrodynamic retarder used for the automotive vehicle assistant braking. The oil-return structure comprises a hydrodynamic retarder stator blade, a rotor blade, and a gap formed between the stator blade and the rotor blade, wherein a guide member which extends to the gap between the stator blade and the rotor blade is convexly arranged at the position where the stator blade arranged on the stator blade of the hydrodynamic retarder is directed towards at one end of the rotor blade, and is used for blocking the liquid thrown out from the inner diameter of the rotor blade and guiding the liquid to enter into the working cavity, and the inner diameter phi C of the guide member and the flange is smaller than the inner diameter phi D of the rotor blade and the flange, and thereby an oil channel is formed.

Description

The oil return structure of hydrodynamic retarder

Technical field

The utility model relates to a kind of liquid that utilizes kinetic energy is converted into the rotary damping device of heat energy, particularly relates to a kind of oil return structure that is used for the hydrodynamic retarder of Motor Vehicle auxiliary braking.

Background technique

At present in the known technology, as shown in Figure 1, the stator impeller 1 of hydrodynamic retarder is parallel fully with the gap 3 between the impeller of rotor 4, the internal diameter Φ A of stator impeller equates substantially with the internal diameter Φ B of impeller of rotor, the liquid that leaks into cavity 5 from active chamber 2 relies on oil duct very complicated on the housing and other structure that the liquid that leaks is led back active chamber, so just make that shell construction is complicated, increased the manufacture difficulty of housing greatly, increased manufacture cost.

The model utility content

The purpose of this utility model is to overcome above-mentioned deficiency of the prior art, and a kind of oil return structure of easy leakage liquid is provided.

The purpose of this utility model can reach by following measure:

This hydrodynamic retarder oil return mechanism, comprise the gap that forms between stator vane, rotor blade and stator vane and the rotor blade, its special way is: the described stator vane that is located on the hydrodynamic retarder stator impeller is convexly equipped with a guide member that extends to the two gap location towards rotor blade one end, in order to block the liquid that throws away from the impeller of rotor inner radius, and guiding liquids enters active chamber, the internal diameter Φ C of this guide member and flange is less than the internal diameter Φ D of impeller of rotor and flange, so as to forming asphalt channel.

The purpose of this utility model can also reach by following measure:

Described guide member is one jiao of end acute angle protrusion outwardly.

Evenly be provided with some gussets on the circumference of described impeller of rotor, throw away the speed of liquid, make the easier active chamber that enters of liquid in order to increase.

The utility model compared with prior art has following advantage:

1, oil return is simple in structure, and is reliable and stable, and cost is low.

2, simplify the hydrodynamic retarder shell construction, need not the many oil ducts of processing on housing.

3, utilize centrifugal force that liquid is got rid of back active chamber, oil return efficient height.

Description of drawings

Fig. 1 is the partial view of known technology.

Fig. 2 is the schematic representation of the utility model hydrodynamic retarder oil return structure.

Fig. 3 is the zoomed-in view of the local I of Fig. 2.

Embodiment

The utility model is described in further detail below in conjunction with accompanying drawing:

Fig. 2, Fig. 3 have provided embodiment of the present utility model.

This hydrodynamic retarder oil return mechanism, comprise the gap that forms between hydrodynamic retarder stator vane 3, rotor blade 5 and stator vane 3 and the rotor blade 5, described stator vane 3 is convexly equipped with a guide member 8 that extends to the two gap location towards rotor blade 5 one ends, the internal diameter Φ C of this guide member 8 and flange 1 is less than the internal diameter Φ D of impeller of rotor and flange 1, so as to forming asphalt channel.Described guide member 8 is one jiao of end acute angle protrusion outwardly.Evenly be provided with thin gusset 10 on the circumference of described impeller of rotor 5.

Using process: when hydrodynamic retarder is worked, be full of certain amount of fluid in the active chamber 7, and may have a spot of leak of liquid in cavity 9, the liquid that leaks under action of gravity can flow to impeller of rotor inner chamber 9, because impeller of rotor 5 is with adpting flange 1 high speed rotating during hydrodynamic retarder work, the gusset 10 on the impeller of rotor 5 can drive liquid and rotate, and liquid flows along direction 11 under action of centrifugal force, enter active chamber 7, thereby make the liquid of leakage come back to active chamber.

The above only is the preferred embodiment of the utility model patent, and all equalizations of being done according to the utility model patent claimed range change and modify, and all should belong to the covering scope of the utility model Patent right requirement.

Claims

1, a kind of oil return structure of hydrodynamic retarder, comprise the gap that forms between hydrodynamic retarder stator vane, rotor blade and stator vane and the rotor blade, it is characterized in that: described stator vane is convexly equipped with a guide member that extends to the two gap location towards rotor blade one end, the internal diameter of this guide member and flange is less than the internal diameter of impeller of rotor and flange, so as to forming asphalt channel.

2, according to the oil return structure of the described hydrodynamic retarder of claim 1, it is characterized in that: described guide member is one jiao of end acute angle protrusion outwardly.

3, according to the oil return structure of the described hydrodynamic retarder of claim 1, it is characterized in that: evenly be provided with some gussets on the circumference of described impeller of rotor.