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Bolted pair with throttling element

A technology of throttling element and connecting pair, which is applied in the direction of threaded connection, pipe element, passing element, etc., can solve the problems of cavitation, flashing and noise of oil-filled bolts, and achieve the effect of avoiding cavitation and realizing throttling effect.

Active Publication Date: 2016-08-24
CHONGQING SOKON IND GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the purpose of the present invention is to overcome the defects in the prior art, to provide a flow rate that can control the oil flow through the connecting pair of oil-passing bolts, so as to solve the problems of cavitation, flashing, vibration and noise in the oil-passing bolts , Bolt connection pair with throttling elements to increase the service life of the oil-passing bolt and improve the NVH performance of the engine

Method used

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  • Bolted pair with throttling element
  • Bolted pair with throttling element
  • Bolted pair with throttling element

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Embodiment Construction

[0019] figure 1 It is a structural schematic diagram of the present invention; figure 2 It is a structural schematic diagram of the driven wheel of the present invention; image 3 It is a cross-sectional view of the drive shaft of the present invention. The throttling oil-passing bolt 8 connection pair in this embodiment includes the oil-passing bolt 8 and the oil-passing joint connected with the oil-passing bolt 8 through thread fit. The screw rod 9 of the bolt 8 is provided with an oil passage 11 along the axial direction and the side wall of the screw rod 9 is provided with a labyrinth-shaped orifice communicating with the oil passage 11. The flow path of the labyrinth orifice is a labyrinth, that is, its flow The path has one or more bends, the oil from outside the oil bolt 8 enters the oil passage 11 through the labyrinth orifice, and when passing through these bends, the flow direction of the oil will change, and then The throttling effect is realized, so that the flo...

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Abstract

The invention discloses a bolt connection pair with throttling elements. The bolt connection pair comprises an oil-passing bolt and an oil-passing connector which is connected with the oil-passing bolt in a matched mode through threads. The screw of the oil-passing bolt is provided with an oil-passing channel in the axial direction, and the side wall of the screw is provided with labyrinth throttling holes communicated with the oil-passing channel. Thus, the flow velocity of oil passing through the oil-passing bolt connection pair can be controlled, and accordingly the problems of cavitation, flashing, vibration and noise in an existing oil-passing bolt can be solved.

Description

technical field [0001] The invention relates to the field of engine parts, in particular to a bolt connection pair with a throttling element. Background technique [0002] Oil (water, gas) bolts are used to seal the threaded through holes on the fuel, machine oil, water, and gas pipelines on the engine. At present, the oil-passing bolt is usually used in conjunction with an oil-passing joint with an internal thread. There is a cavity with a certain space inside the oil-passing joint. In the oil bolt, the oil hole of the existing oil bolt is usually a round hole. After the liquid reaches the cavity, due to the change of the flow section and flow direction, the liquid will generate a large momentum in the cavity, resulting in cavitation, Flashing, vibration and noise issues. [0003] Therefore, in order to solve the above problems, it is necessary to control the flow rate of the oil through the oil-passing bolt connection pair, to solve the problems of cavitation, flashing, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16L15/08F16L15/04F16L33/24F16L55/027
CPCF16L15/04F16L15/08F16L33/24F16L55/027
Inventor 张兴海段伟凌青海刘维雷建林曹达
Owner CHONGQING SOKON IND GRP CO LTD
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