Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Novel vehicle-mounted natural gas supply system and stable gas supply method thereof

A technology of gas supply system and natural gas, which is applied in the direction of charging system, oil supply device, combustion engine, etc., can solve the problems of waste of resources and the inability of economical valves to reduce the pressure in the bottle, so as to save energy, save resources, reduce The effect of energy waste

Active Publication Date: 2014-10-08
成都市珑熙科技有限公司
View PDF7 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But if there is no gas supply at this time, just when the engine stops using gas, the economic valve cannot reduce the pressure in the bottle. At this time, the pressure in the bottle may exceed the set value of the safety valve, and part of the gas will be emptied, resulting in waste of resources.

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
  • Novel vehicle-mounted natural gas supply system and stable gas supply method thereof
  • Novel vehicle-mounted natural gas supply system and stable gas supply method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Such as figure 2As shown, a new type of vehicle-mounted natural gas supply system includes an LNG gas storage tank 1, a vaporizer 6, a liquid outlet pipe 3 connected between the LNG gas storage tank 1 and the vaporizer 6, and is used for extracting from the LNG gas storage tank 1. The LNG pump 5 for liquefied natural gas and the pneumatic driving device 7 that drives the LNG pump 5 to work; the LNG pump 5 is arranged on the liquid outlet pipe 3; the pneumatic driving device 7 is arranged on the pipeline downstream of the carburetor 6, and the The pipeline is driven by the gas pressure of natural gas, and is connected with the LNG pump 5 through the driving pipeline. In this embodiment, the pneumatic driving device 7 uses an air motor, such as but not limited to a vane air motor, a piston air motor, or a film air motor.

[0032] The working principle in this embodiment is:

[0033] In this embodiment, the self-pressurization system of the existing vehicle-mounted natu...

Embodiment 2

[0036] On the basis of Embodiment 1, a new vehicle-mounted natural gas supply system in this embodiment further includes an overflow circuit arranged in parallel at both ends of the LNG pump 5 , and an overflow valve 4 is provided on the overflow circuit.

[0037] In this embodiment, an overflow circuit is provided between the vaporizer 6 and the LNG storage tank 1 to further adjust the pressure balance. When the pressure in the vaporizer 6 is higher than the set value, the LNG pump 5 stops working, the overflow valve 4 will open, and part of the gasified natural gas in the vaporizer 6 will return to the storage tank through the overflow valve 4 through the liquid outlet pipe 3. In the liquid phase space in the gas tank 1, when the pressure in the carburetor 6 is reduced and balanced, the overflow valve 4 is closed, and the LNG pump 5 continues to work, so that the self-balancing effect of the system is better.

Embodiment 3

[0039] On the basis of Embodiment 2, in this embodiment, the downstream of the carburetor 6 is also connected with a pressure reducing valve 8 and a buffer tank 9 in sequence, and a fuel shutoff valve 2 is also arranged on the outlet pipe 3, and the downstream of the buffer tank 9 is connected to The pipeline on the engine is also provided with a pressure gauge 10 . The natural gas vaporized by the carburetor 6 passes through the pneumatic driving device 7 and then enters the pressure reducing and regulating valve 8 for decompression, and finally supplies the engine through the buffer tank 9 for use. A gas flow measurement device (such as a flow meter) may be further provided on the pneumatic driving device 7 for real-time monitoring of gas supply and real-time detection of gas consumption.

[0040] The LNG pump 5 and overflow valve 4 are located between the fuel cutoff valve 2 and the carburetor 6 . The pneumatic driving device 7 is arranged on the pipeline between the carbu...

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 novel vehicle-mounted natural gas supply system and a stable gas supply method of the novel vehicle-mounted natural gas supply system. The novel vehicle-mounted natural gas supply system comprises an LNG storage tank, a gasification device, a liquid outlet pipe connected between the LNG storage tank and the gasification device, an LNG pump used for extracting liquefied natural gas from the LNG storage tank and a gas pressure driven device driving the LNG pump to work. The LNG pump is arranged on the liquid outlet pipe. The gas pressure driven device is arranged on a pipeline on the downstream of the gasification device and driven through gas pressure of natural gas flowing through the pipeline and connected with the LNG pump through a driving pipeline. The gas pressure driven device of the system is driven through gas pressure of the gasified natural gas in the gasification device to work and drive the LNG pump to extract the liquefied natural gas from the LNG tank, the natural gas flows through the liquid outlet pipe to the gasification device, and therefore the passive circulatory system is formed. According to the system, gas fuel can be stably supplied to an engine, a self-pressurization system is omitted, evacuation loss of natural gas is reduced, and resource waste is avoided.

Description

technical field [0001] The invention relates to the technical field of vehicle-mounted natural gas supply, in particular to a novel vehicle-mounted natural gas supply system and a stable gas supply method thereof. Background technique [0002] At present, the vehicle-mounted LNG (Liquefied Natural Gas, liquefied natural gas) gas supply system consists of the following parts: LNG storage tank, fuel cut-off valve, carburetor, pressure reducing and regulating valve, buffer tank, etc. Since this gas supply system needs to match the filling pressure in the steel cylinder with the working requirements of the engine, it is necessary to control the saturation pressure of the filling station to reach a certain required value. This method requires the gas filling station to adjust the temperature of the stored LNG to increase the saturated vapor pressure of the LNG. This will not be conducive to the storage of LNG, and increase the loss of gas station emptying, so now a self-pressuri...

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): F02M21/02F02M21/06
CPCY02T10/30
Inventor 肖仁旺刘树文何才卢在江
Owner 成都市珑熙科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com