Device for supplying lubricant
AssigneeFord Global Technologies, LLC
InventorsOliver Berkemeier, Bernd Steiner
Life of this patent
Estimating the term…
Abstract
A device for supplying lubricant for a fuel injection nozzle for injecting compressed natural gas (CNG) into an internal combustion engine is provided. The device includes a lubricant reservoir for supplying lubricant and having a feed pressure supply apparatus for applying a feed pressure to lubricant which is stored in the lubricant reservoir, where a feed pressure valve for setting the feed pressure is provided between the feed pressure supply apparatus and the lubricant reservoir, and a lubricant metering valve for metering the lubricant supply is provided between the lubricant reservoir and the fuel injection nozzle, where the lubricant is fed to the lubricant reservoir from an oil gallery of the internal combustion engine.
Claims19
A device for supplying a lubricant for a fuel injection nozzle for injecting compressed natural gas (CNG) into an internal combustion engine, the device comprising:
- a lubricant reservoir for supplying the lubricant to the device;
- and
- a feed pressure supply apparatus for applying a feed pressure to the lubricant which is stored in the lubricant reservoir;
- where a feed pressure valve for setting the feed pressure is provided between the feed pressure supply apparatus and the lubricant reservoir;
- where a lubricant metering valve for metering the lubricant is provided between the lubricant reservoir and the fuel injection nozzle;
- and
- where the lubricant is fed to the lubricant reservoir from an oil gallery of the internal combustion engine.
A compressed natural gas (CNG) fuel delivery system comprising:
- an injection rail receiving CNG from a CNG reservoir and receiving a lubricant from a lubricant metering valve coupled to a lubricant reservoir;
- where the lubricant reservoir receives the lubricant from an oil gallery and is coupled to a feed pressure supply apparatus designed to pressurize the lubricant reservoir;
- and
- a controller including computer readable instructions stored on non-transitory memory that when executed by a processor cause the controller to:
- pressurize the lubricant reservoir through operation of the feed pressure supply apparatus;
- and
- regulate an amount of the lubricant flowing through the lubricant metering valve based on one or more engine operating conditions through operation of the lubricant metering valve.
A method for operating a fuel delivery system, comprising:
- flowing a lubricant from an oil gallery to a lubricant reservoir;
- pressurizing the lubricant in the lubricant reservoir through operation of a feed pressure supply apparatus coupled to the lubricant reservoir;
- and
- flowing the pressurized lubricant from the lubricant reservoir to the injection rail through operation of a lubricant metering valve coupled to a lubricant line extending between the lubricant reservoir and the injection rail, where the oil gallery is configured to flow lubricant to one or more lubricated components in a CNG internal combustion engine.
Dependencies are inferred from the claim text.