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US 4,962,745 AGranted
Fuel supply device of an engine
AssigneeToyota Jidosha Kabushiki Kaisha
InventorsEishi Ohno, Norihiko Nakamura
Life of this patent
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Abstract
A fuel supply device comprising an air compressor for supplying pressurized air to an air blast valve via a pressurized air passage, an oil supply device for supplying oil in an engine crankcase to the compressor, and an oil separator arranged in the pressurized air supply passage to separate oil from pressurized air discharged from the air compressor and return the thus-separated oil to the engine crankcase.
Claims16
A fuel supply device of an engine having a crankcase, comprising:
- an air blast valve for injecting fuel by pressurized air;
- an air compressor for supplying pressurized air to said air blast valve via a pressurized air supply passage;
- an oil supply means for supplying oil in the engine crankcase to said air compressor to lubricate said air compressor;
- an oil separator arranged in said pressurized air supply passage to separate oil from pressurized air discharged from said air compressor and return said thus-separated oil to the engine crankcase via a return passage;
- and
- a pressure regulator arranged in said return passage for discharging pressurized air and separated oil to said crankcase when a pressure in said pressurized air supply passage becomes higher than a predetermined pressure and for stopping the discharge of pressurized air and separated oil to said crankcase when said pressure in said pressurized air supply passage becomes lower than said predetermined pressure, to keep said pressure in said pressurized air supply passage at a constant value and to discharge said separated oil to said crankcase.
3 more elements
Dependencies are inferred from the claim text.