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1. (WO2017202826) DEVICE FOR OPERATING AN ENGINE

Pub. No.:    WO/2017/202826    International Application No.:    PCT/EP2017/062372
Publication Date: Fri Dec 01 00:59:59 CET 2017 International Filing Date: Wed May 24 01:59:59 CEST 2017
IPC: F02D 41/00
F02D 19/06
F02D 19/08
G01N 33/22
F02M 21/02
F02D 41/30
F02D 41/06
Applicants: CLEANTECH SWISS AG
Inventors: GIEGER, Werner
Title: DEVICE FOR OPERATING AN ENGINE
Abstract:
The invention relates to a device and a method for ascertaining an injection time and/or an amount of a liquefied gas fuel - such as liquefied petroleum gas (LPG), natural gas (CNG), liquefied natural gas (LNG), biogas or hydrogen (H2) - to be delivered to a cylinder of an engine (19) in order to operate the engine (19) in a bivalent or trivalent fuel operating mode, said device being designed in such a way that the ascertained injection time of the liquefied gas fuel is dependent on an ascertained calorific power or an ascertained gas mixture characteristic. A gas mixture analysis module (7) is used for optimizing combustion. A gas start mechanism allows a vehicle to be started on gas power even at low temperatures.