Method for controlling oil flow rate in a two-stroke engine with separate lubrication and related engine
AssigneeElf Antar France
InventorsJacques Lavy, Yoichi Ishibashi, Philippe Girard
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Abstract
This invention relates to a process for monitoring the flow rate of oil that is injected into a two-stroke internal combustion engine where the oil is injected independently of the gasoline. According to the invention, the oil flow rate is based on a temperature that represents the heat load of the engine. More specifically, this temperature can be that of an element that constitutes the engine, such as that of the spark plug gasket.
Claims31
A process for controlling a flow rate of lubricating oil to a two-stroke internal combustion engine in which oil is delivered to the two-stroke internal combustion engine separated from gasoline comprising:
- providing an oil injection circuit which provides lubricating oil to the two-stroke internal combustion engine separated from the gasoline with a flow rate of the lubricating oil provided by the injection circuit being based on a temperature representing a heat load of the engine obtained from a constituent element of the two-stroke internal combustion engine.
A two-stroke internal combustion engine in which oil is delivered to the two-stroke internal combustion engine separated from gasoline comprising:
- an injection circuit providing lubricating oil with a controlled flow rate to the two-stroke internal combustion engine separated from the gasoline;
- a sensor which senses a temperature representing a heat load of the two-stroke internal combustion engine and provides a signal representing the sensed temperature obtained from a constituent of the two-stroke internal combustion engine;
- a module, which processes the signal, having an input coupled to the signal provided by the sensor and an output providing a control signal;
- and
- a control element, coupled to the output signal, which adjusts the oil flow rate of the injection circuit so that the oil flow rate is controlled based on the sensed temperature.
Dependencies are inferred from the claim text.