Rapid LNG Engine Warm-Up Utilizing Engine Compression Brakes

摘要

A system and method of utilizing engine compression braking technology to create a parasitic load on an engine during initial idling by putting some of the engine cylinders in braking mode while others remain in power mode. Engine compression brakes are operably connected to the engine cylinders. When engine temperature is below a predetermined value, the engine compression brakes for a portion of the cylinders are activated, and those cylinders impose a parasitic load on the engine that rapidly warms the engine.

主权项

1. A system for rapidly warming up a dual fuel engine, the system comprising:
a plurality of cylinders; at least one electronically controlled high pressure direct injector operably attached to each cylinder, the at least one high pressure direct injector configured to deliver diesel fuel and natural gas to the cylinder; an electronically controlled engine compression brake operably attached to at least one of the cylinders; a sensor for sensing a temperature of the engine; and an electronic control module in control communication with each high pressure direct injector, the electronic control module including a rapid warm-up mode in which the high pressure direct injectors for a first portion of the cylinders are activated and the engine compression brakes for a second portion of the cylinders are activated.