Title:
ＬＰＧ燃料の残量警告装置
Document Type and Number:
Japanese Patent JP6562854
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide an LPG fuel residual amount warning device capable of appropriately issuing a warning about a replacement time of an LPG cylinder.SOLUTION: An LPG fuel residual amount warning device 1 comprises: a supply pipe 11 to take out LPG fuel from a cylinder C; measurement instruments 5 and 8 to measure a temperature and pressure of the LPG fuel in the supply pipe 11; and a determination section 2 which determines a replacement time of the cylinder C on the basis of the measured temperature t and pressure p. The determination section 2 has: an empty determination section 23 which determines whether or not the cylinder C is empty; a composition determination section 24 which determines a composition of the LPG fuel; a reference pressure setting section 25 which sets reference pressure from a vapor pressure curve corresponding to the composition of the LPG fuel; an error dealing section 27 which causes the empty determination section 23 and the composition determination section 24 to repeat determinations when detecting a measurement error; and a pressure monitoring section 26 which determines the replacement time of the cylinder C on the basis of a difference between measured pressure p and reference pressure.SELECTED DRAWING: Figure 1
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Inventors:
Yamamoto Hidetomo
Keiichi Terada
Noguchi Takudai
Keiichi Terada
Noguchi Takudai
Application Number:
JP2016032561A
Publication Date:
August 21, 2019
Filing Date:
February 24, 2016
Export Citation:
Assignee:
Mitsubishi Logisnext Co., Ltd.
International Classes:
F02M21/02; F02B43/00
Domestic Patent References:
| JP7069084A | ||||
| JP2008101608A | ||||
| JP2007162849A | ||||
| JP2004353653A | ||||
| JP7189731A | ||||
| JP2007329115A |
Attorney, Agent or Firm:
Morimoto International Patent Office