Fireless returning device for adjustable locomotive

A fire-free return and adjustable technology, applied in valve devices, mechanical equipment, engine components, etc., can solve problems such as safety accidents, complicated fire-free return settings, etc., to reduce costs, facilitate locomotive piping, and be widely used.

Active Publication Date: 2015-03-25
CRRC ZIYANG CO LTD
View PDF5 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The current non-fire air return device for locomotives uses the dust filter check valve specified in the TB / T1041-74 standard. This valve only has dust filtering and non-return functions, and has no pressure adjustment function. The dynamic valve makes the pressure of the brake cylinder of the locomotive meet the relevant requirements. After the locomotive returns to the destination, the pressure value of the brake valve needs to be adjusted back to the original set value, which makes the setting of the no-fire return complicated. If it is not set in place, it is easy to cause safety accidents

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
  • Fireless returning device for adjustable locomotive
  • Fireless returning device for adjustable locomotive
  • Fireless returning device for adjustable locomotive

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] The present invention will be further described below in combination with specific embodiments and accompanying drawings.

[0022] Such as Figure 1 to Figure 4 As shown, an adjustable non-fire return device for locomotives includes a valve body 1. A transverse passage 2 is opened on the valve body 1. A joint 3 is installed at one end of the passage 2, and a choke plug 4 is installed at the other end. From the joint 3 to the choke In the direction of the plug 4, the filter element 5, the pressure regulating valve assembly 6 and the one-way valve assembly 7 are sequentially installed in the channel.

[0023] The diameter of the choke plug hole 41 of the choke plug 4 is 3 mm. The valve body 1 is also equipped with a pressure gauge 8 for measuring the pressure of the regulated gas in the channel.

[0024] see image 3 , the one-way valve assembly 7 includes a valve core 71, a one-way valve housing 72 and a spring one 73, and a one-way valve assembly hole communicating w...

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 discloses a fireless returning device for an adjustable locomotive. The fireless returning device comprises a valve body, a horizontal channel is formed in the valve body, one end of the channel is provided with a joint, and the other end of the channel is provided with a choke plug. A filter element, a pressure regulating valve assembly and a one-way valve assembly are sequentially mounted in the channel in the direction from the joint to the choke plug. The outlet pressure of the fireless returning device can be freely adjusted according to demands, the demands for fireless returning pressure set values of railways in different nations are met, pressure values can be visibly read on the valve body, and convenience and quickness are achieved. The structure is compact, occupied space and the number of middle connecting pieces are reduced, tube layout of the locomotive is facilitated, and the cost is lowered. The fireless returning device is widely applied, and can be applied to other various kinds of air wind equipment in which filtering and decompression are needed by changing the choke plug.

Description

technical field [0001] The invention relates to a non-fire return device, in particular to an adjustable non-fire return device for locomotives. Background technique [0002] When the locomotive has no fire return (the diesel engine on the locomotive does not start, and is attached to the train formation as a vehicle), it is necessary to guide the air from the train pipe to the main air duct of the locomotive, so that the no fire return locomotive brakes when the train brakes . [0003] The current non-fire air return device for locomotives uses the dust filter check valve specified in the TB / T1041-74 standard. This valve only has dust filtering and non-return functions, and has no pressure adjustment function. The dynamic valve makes the pressure of the brake cylinder of the locomotive meet the relevant requirements. After the locomotive returns to the destination, the pressure value of the brake valve needs to be adjusted back to the original set value, which makes the se...

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(China)
IPC IPC(8): F16K15/18
CPCF16K15/18
Inventor 柳志华张斌
Owner CRRC ZIYANG CO LTD
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
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap