Title:
METHOD AND DEVICE FOR MONITORING QUALITY OF GAS
Document Type and Number:
WIPO Patent Application WO/2021/042252
Kind Code:
A1
Abstract:
A method and device for monitoring the quality of a gas. The method comprises: acquiring a volume flow rate of air and a volume flow rate of a gas (S101); determining whether a ratio of the volume flow rate of air to the volume flow rate of the gas is greater than a preset threshold (S102); and if so, determining that the quality of the gas has changed and there is a greater likelihood of knocking (S103). In the method, a volume flow rate of air and a volume flow rate of a gas are monitored in real time, and then a ratio of the two volume flow rates is obtained from calculation and compared with a safety threshold, such that whether there is a greater likelihood of knocking can be determined conveniently and quickly, and a corresponding knock suppression operation can be quickly performed to suppress occurrence of knocking. In the method for monitoring the quality of a gas, prediction of knocking is performed by monitoring the quality of a gas source and does not require installation of components such as a knock sensor, thereby maximally reducing development costs.
Inventors:
XIAO FUMING (CN)
ZENG PIN (CN)
YIN ZHIQIANG (CN)
FANG XIAOPENG (CN)
ZENG PIN (CN)
YIN ZHIQIANG (CN)
FANG XIAOPENG (CN)
Application Number:
PCT/CN2019/104109
Publication Date:
March 11, 2021
Filing Date:
September 03, 2019
Export Citation:
Assignee:
WEICHAI POWER CO LTD (CN)
International Classes:
F02D13/00; F02D41/00
Domestic Patent References:
| WO2017135957A1 | 2017-08-10 |
Foreign References:
| CN1690391A | 2005-11-02 | |||
| EP1707791A2 | 2006-10-04 | |||
| JP2016006305A | 2016-01-14 | |||
| US20090283080A1 | 2009-11-19 | |||
| US20070251509A1 | 2007-11-01 | |||
| CN109209660A | 2019-01-15 | |||
| US5791145A | 1998-08-11 |
Attorney, Agent or Firm:
UNITALEN ATTORNEYS AT LAW (CN)
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