Indopar B.V. Patent applications |
Patent application number | Title | Published |
20140311445 | METHOD OF SWITCHING FROM A LIQUEFIED GAS FUEL TO A LIQUID FUEL BEING PROVIDED TO A DIRECT INJECTION COMBUSTION ENGINE, AND DIRECT INJECTION BI-FUEL SYSTEM FOR SUCH AN ENGINE - A method of switching between liquefied gas fuel and liquid fuel consuming modes of a direct injection combustion engine including pumping liquefied gas fuel to a high pressure,pump for pumping the liquefied gas fuel to a high pressure rail of the engine during the liquefied gas fuel consuming mode, switching to the liquid fuel consuming mode, pumping the liquid fuel to the high pressure pump, flushing liquefied gas fuel via a return line between the high pressure pump and a fuel tank, controlling pump operation, controlling flow through the return line, and controlling the pressure of the fuels. | 10-23-2014 |
20110155102 | DIRECT INJECTION BI-FUEL SYSTEM FOR COMBUSTION ENGINES - A direct injection bi-fuel system includes a first fuel subsystem, a second fuel subsystem, and a junction configured to receive first fuel from the first fuel subsystem when the system is operating in a first fuel consuming mode, and to receive second fuel from the second fuel subsystem when the system is operating in a second fuel consuming mode. A pump is configured to receive the fuel passing through the junction and pump the fuel to a high pressure rail of a combustion engine, and a purging unit is configured to purge the second fuel from the rail when the system is switched from the second fuel consuming mode to the first fuel consuming mode. The purging unit includes a piston and is configured to receive the second fuel on one side of the piston and the first fuel on the other side of the piston. | 06-30-2011 |