Supercharge Your Innovation With Domain-Expert AI Agents!

A pre-swirl silencer device that effectively widens the flow range of the compressor

A technology of noise reduction device and flow range, which is applied to the components of pumping device for elastic fluid, mechanical equipment, machine/engine, etc. Easy disassembly and assembly, strong applicability

Active Publication Date: 2017-12-12
CHINA NORTH ENGINE INST TIANJIN
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the continuous increase of the boosting ratio, the flow velocity at the inlet of the impeller increases continuously, and the internal flow of the centrifugal compressor is transformed into a transonic flow structure, so that the stable working range of the centrifugal compressor drops sharply

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
  • A pre-swirl silencer device that effectively widens the flow range of the compressor
  • A pre-swirl silencer device that effectively widens the flow range of the compressor
  • A pre-swirl silencer device that effectively widens the flow range of the compressor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0020] The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0021] A pre-swirl silencer device that effectively widens the flow range of the compressor, such as figure 1 As shown, it includes compressor volute 1 with casing treatment, silencing ring 2 with pre-rotating blades and circlip 3, the silencing ring 2 is arranged at the inlet of compressor volute 1, through the circlip 3 fixed, such as figure 2 As shown, the sound-absorbing ring 2 includes a circular ring body and several twisted vanes 4 with pre-rotation function arranged in the inner circumferential direction.

[0022] The twisted blades 4 are detachably mounted on the ring body of the sound-absorbing ring 2 , and the number of the twisted-shaped blades 4 arranged in the inner circ...

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

The invention provides a pre-rotation silencer device that effectively broadens the flow range of a compressor, including a compressor volute with a casing treatment, a silencer ring with pre-rotation blades and an elastic retaining ring. The silencer ring is arranged on the compressor. The inlet of the volute is fixed by an elastic retaining ring. The silencer ring includes a ring body and a number of twisted blades with pre-rotating functions arranged circumferentially inside it. Compared with the existing technology, the present invention has the following advantages: while the silencer ring plays a role in silencing the compressor, the curved and twisted blades can guide the air flow and generate pre-rotation, thereby broadening the stable working range of the compressor.

Description

technical field [0001] The invention belongs to the technical field of exhaust gas turbocharging, and in particular relates to a pre-swirl muffler which effectively widens the flow range of a compressor. Background technique [0002] The requirement of high power density and plateau power recovery of internal combustion engine requires continuous increase of supercharger compressor boost ratio. With the continuous increase of the boosting ratio, the flow velocity of the impeller inlet increases continuously, and the internal flow of the centrifugal compressor is transformed into a transonic flow structure, so that the stable working range of the centrifugal compressor drops sharply. To achieve a good match between the turbocharger and the vehicle engine, the centrifugal compressor must have a wide and stable working range. [0003] Broadening the stable flow range of the high-pressure ratio centrifugal compressor has become one of the key technologies to achieve a good matc...

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 Patents(China)
IPC IPC(8): F04D29/42F04D29/44F04D29/66
CPCF04D29/685F04D29/4213F04D29/624
Inventor 佟鼎刘莹黄磊杨磊邢卫东马磊
Owner CHINA NORTH ENGINE INST TIANJIN
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