Check patentability & draft patents in minutes with Patsnap Eureka AI!

Turbomachine

A technology for turbines and turbine impellers, which is applied in gas turbine installations, mechanical equipment, engine functions, etc., and can solve problems such as fracture, fire, and turbocharger damage.

Inactive Publication Date: 2010-12-01
CUMMINS TURBO TECH
View PDF6 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In some cases low cycle fatigue can cause the turbine wheel to fail or even break, which can cause catastrophic damage to the turbocharger
In particular, damage or damage to the bearing housing can cause oil to leak from the bearing cavity into the turbine, which can cause a fire

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
  • Turbomachine
  • Turbomachine
  • Turbomachine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0058] Reference figure 1 with figure 2 The illustrated turbocharger includes a turbine 1 connected to a compressor 2 through an intermediate bearing housing 3. The turbine 1 includes a turbine wheel 4 that rotates in a turbine housing 5. Similarly, the compressor 2 includes a compressor impeller 6 rotating in a compressor housing 7. The turbine wheel 4 and the compressor wheel 6 are mounted on opposite ends of a common turbocharger shaft 8 extending through the intermediate bearing housing 3.

[0059] The turbine housing 5 has an exhaust gas inlet volute 9 arranged around the turbine wheel 4 and an axial exhaust gas outlet 10. The compressor housing 7 has an axial intake passage 11 and a compressed air outlet volute 12 arranged around the compressor impeller 6.

[0060] A heat shield layer 13a is located between or between the turbine wheel 4 and the bearing housing 3, which is made of sheet metal, and is installed behind the turbine wheel 4 in the turbine housing 5. The purpo...

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

No PUM Login to View More

Abstract

A turbomachine such as a turbocharger comprises a housing 3 defining a bearing cavity and a turbine wheel 4 mounted to a shaft 8 for rotation about an axis. A housing wall 3a is disposed between the bearing cavity and the turbine wheel 4, the shaft 8 extending into the bearing cavity through a shaft passage 20 provided in the housing wall 3a. The housing wall 3a comprises a first portion defining an air gap with the turbine wheel 4 and a second annular portion 3b defining the opening to the shaft passage 20 and which is axially spaced from said turbine wheel 4 by a minimum distance D. The housing wall 3a further comprises at least one third portion 32, such as an annular rib, radially spaced from the first portion 3a. The third portion is configured to bear load from a turbine wheel rotating off axis in a failure condition.

Description

Technical field [0001] The invention relates to a turbine, such as a power turbine or turbocharger for an internal combustion engine. More specifically, the present invention relates to limiting low-cycle fatigue to damage that occurs in a turbocharger caused by low-cycle fatigue failure of a turbine or a turbine wheel. Background technique [0002] A turbocharger is a well-known device for supplying air to the intake pipe of an internal combustion engine at a pressure (boost or boost) higher than the atmosphere. Conventional turbochargers usually include exhaust-driven turbines or turbine wheels mounted on a rotatable shaft located inside a turbine cavity defined by a turbine housing. The rotation of the turbine or turbine wheel drives the compressor wheel mounted on the other end of the shaft in the compressor housing. The compressor wheel delivers compressed air to the intake manifold of the internal combustion engine to increase the power of the internal combustion engine o...

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
IPC IPC(8): F01D1/06F01D25/24F01D5/02F01D25/16F01D25/00F16J15/16F02B37/00F02C6/12
CPCF05B2270/107F02C6/12F05B2260/96F05D2220/40F05B2220/40F01D25/162F05D2260/84F05D2260/96F05D2240/55F05D2270/09F01D25/24
Inventor 皮埃尔·伯纳德·弗伦奇乔纳森·大卫·伍德
Owner CUMMINS TURBO TECH
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com