Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Systems and methods for protecting a turbocharger aluminum bearing housing

a technology for aluminum bearings and turbochargers, which is applied in the direction of machines/engines, mechanical equipment, liquid fuel engines, etc., can solve the problems of increasing wear at the interface, increasing the efficiency of vehicles, and increasing the mass of vehicles, so as to facilitate the use of aluminum bearing housings, avoid wear and other issues, and improve heat resistan

Inactive Publication Date: 2015-02-19
BORGWARNER INC
View PDF16 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The patent text describes a way to use an aluminum bearing housing while protecting the interface between the housing and other components to avoid wear and tear. This is done by adding a protective surface made of a higher heat resistance and wear resistance material, such as steel, to the interface. This results in a longer lifespan for the components and better performance overall.

Problems solved by technology

In modern auto applications, the mass of the vehicle is becoming a major issue when it comes to the efficiency of the vehicle.
However, in doing so, there can be increased wear at the interface between the hot turbine housing (14) and the relatively cool bearing housing (22) and also at the interface of the bearing housing (22) to any bearing system that may be implemented, as aluminum is relatively soft compared to gray iron.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Systems and methods for protecting a turbocharger aluminum bearing housing
  • Systems and methods for protecting a turbocharger aluminum bearing housing
  • Systems and methods for protecting a turbocharger aluminum bearing housing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020]Arrangements described herein relate to device turbocharger with an aluminum bearing housing configured for improved interface with the turbine housing and / or bearing system. Detailed embodiments are disclosed herein; however, it is to be understood that the disclosed embodiments are intended only as exemplary. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a basis for the claims and as a representative basis for teaching one skilled in the art to variously employ the aspects herein in virtually any appropriately detailed structure. Further, the terms and phrases used herein are not intended to be limiting but rather to provide an understandable description of possible implementations. Arrangements are shown in FIGS. 4-6, but the embodiments are not limited to the illustrated structure or application.

[0021]Referring to FIG. 4, examples of protective systems for an interface between an aluminum bearing...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
temperaturesaaaaaaaaaa
heat resistanceaaaaaaaaaa
wear resistanceaaaaaaaaaa
Login to View More

Abstract

In an aluminum turbocharger bearing housing, there is a potential for wear of the bearing housing at the interface with the turbine housing and / or the bearing system. One area of potential concern is the interface between the flange of the bearing housing and an abutment of the turbine housing. With a protective element at the interface, the potential for wear, and thus misalignment of the rotating assembly with the housings in which they operate can be mitigated. The protective element can be a cap for the bearing housing flange or a heat shield adapted to cover certain faces of the bearing housing flange. The protective element can be a sleeve provided within a bore in the bearing housing. The protective element can be made of a material with a higher heat resistance and / or a higher wear resistance than the aluminum bearing housing.

Description

FIELD OF THE INVENTION[0001]Embodiments relate in general to turbochargers, and, more particularly, to turbochargers with bearing housings made of aluminum.BACKGROUND OF THE INVENTION[0002]Turbochargers are a type of forced induction system. They deliver air, at greater density than would be possible in the normally aspirated configuration, to the engine intake, allowing more fuel to be combusted, thus boosting the engine's horsepower without significantly increasing engine weight. A smaller turbocharged engine, replacing a normally aspirated engine of a larger physical size, will reduce the mass and can reduce the aerodynamic frontal area of the vehicle.[0003]Referring generally to FIGS. 1 and 2, turbochargers (10) use the exhaust flow from the engine exhaust manifold to drive a turbine wheel (12), which is located within a turbine housing (14). The energy extracted by turbine wheel (12) is translated to a rotating motion, which then drives a compressor wheel (16), which is located...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(United States)
IPC IPC(8): F04D29/046F04D29/047
CPCF04D29/0473F04D29/0462F01D25/125F01D25/162F01D25/243F05D2220/40F05D2260/37F05D2260/39F05D2300/121F05D2240/15
Inventor FRASER, BROCKSONIGRA, MEHUL
Owner BORGWARNER INC
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Eureka Blog
Learn More
PatSnap group products