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A floating bearing and a turbocharger for an internal combustion engine

A turbocharger and floating bearing technology, applied in sliding contact bearings, rotating bearings, bearings, etc., can solve the problems of high fuel consumption, short working life, non-wearing floating bearings, etc., and achieve less lubrication and less wear and the effect of reducing heat generation and increasing corrosion resistance

Active Publication Date: 2016-03-23
嘉兴咏纳传动技术有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention proposes a floating bearing, which solves the problems of non-abrasion resistance, high fuel consumption and short working life of the prior art floating bearing

Method used

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  • A floating bearing and a turbocharger for an internal combustion engine
  • A floating bearing and a turbocharger for an internal combustion engine
  • A floating bearing and a turbocharger for an internal combustion engine

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Embodiment Construction

[0018] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0019] Such as figure 1 with figure 2 As shown together, the present invention first proposes a floating bearing. The floating bearing first includes a cylindrical bearing body 1. The outer diameter of the two ends of the bearing body 1 is larger than the outer diameter of the middle part, that is, the overall shape is Dumbbell shape.

[0020] The bearing body 1 is provided with a lubricating oil hole 2 penetrating its side wall. In thi...

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Abstract

The invention provides a floating bearing and a turbocharger of an internal combustion engine adopting the floating bearing, and aims to solve the problem of influence on normal operation of the turbocharger of the internal combustion engine caused by low abrasion resistance, high oil consumption and short service life of the floating bearing in the prior art. The floating bearing comprises a cylindrical bearing body, wherein the bearing body is made of a zirconia ceramic material; a lubricating oil hole which penetrates through the side wall of the bearing body is formed in the middle of the bearing body. The turbocharger of the internal combustion engine comprises an intermediate and the floating bearing, wherein an inner cavity is formed in the intermediate; a turbine shaft which rotates by taking self-axis as the center is arranged in the inner cavity of the intermediate; the floating bearing is positioned in an interval between the intermediate and the turbine shaft; an outer lubricating oil film is formed between the intermediate and the floating bearing; an inner lubricating oil film is formed between the floating bearing and the turbine shaft. The working performance of the turbocharger of the internal combustion engine can be effectively improved according to the characteristics of the floating bearing which is made of the zirconia ceramic material, and the service life of the turbocharger is greatly prolonged.

Description

Technical field [0001] The invention relates to the technical field of bearings, in particular to a floating bearing and an internal combustion engine turbocharger using the floating bearing. Background technique [0002] The turbocharger is a device that uses the exhaust energy of the internal combustion engine to drive the turbine and drive the compressor to increase the intake pressure of the internal combustion engine. Among them, the floating bearing is the support body of the rotor part of the turbocharger of the internal combustion engine. It not only has to bear the gravity of the rotor components, the force of the gas on the rotor, the centrifugal force caused by the unbalanced mass of the rotor and the external load caused by the engine vibration, but also bear the external load. The heat load from the turbine end requires the floating bearing to have good mechanical strength. In addition, it must not only ensure the reliable operation of the rotor rotating at a high s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16C33/04
CPCF16C17/18F16C17/02F16C2360/24
Inventor 毕克明
Owner 嘉兴咏纳传动技术有限公司
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