METHOD FOR PREVENTING PISTON OIL-UP AND ENGINE EMPLOYING THE SAME
First Claim
1. A method for preventing a piston oil-up, comprising:
- determining an oil-up condition formation to use a controller, wherein an oil-up oil generates since an engine oil moves upward above a piston, after an engine operation state is verified;
determining a suction condition of the oil-up oil to use the controller based on any of a cylinder total control suction method, a cylinder explosion sequence suction method and a cylinder identical stroke sequence suction method when the oil-up condition has been formed; and
operating an oil pump to use the controller, sucking the oil-up oil to use a suction force of the oil pump and discharging the sucked oil-up oil from a cylinder block.
1 Assignment
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Accused Products
Abstract
A method for preventing a piston oil-up, may include determining an oil-up condition formation to use a controller, wherein an oil-up oil generates since an engine oil moves upward above a piston, after an engine operation state is verified; determining a suction condition of the oil-up oil to use the controller based on any of a cylinder total control suction method, a cylinder explosion sequence suction method and a cylinder identical stroke sequence suction method when the oil-up condition has been formed; and operating an oil pump to use the controller, sucking the oil-up oil to use a suction force of the oil pump and discharging the sucked oil-up oil from a cylinder block.
5 Citations
16 Claims
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1. A method for preventing a piston oil-up, comprising:
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determining an oil-up condition formation to use a controller, wherein an oil-up oil generates since an engine oil moves upward above a piston, after an engine operation state is verified; determining a suction condition of the oil-up oil to use the controller based on any of a cylinder total control suction method, a cylinder explosion sequence suction method and a cylinder identical stroke sequence suction method when the oil-up condition has been formed; and operating an oil pump to use the controller, sucking the oil-up oil to use a suction force of the oil pump and discharging the sucked oil-up oil from a cylinder block. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An engine, comprising:
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a piston provided at each of a plurality of cylinders of a cylinder block, wherein an oil suction hole is formed at a piston ring of the piston; and an oil-up oil suction system including; a plurality of oil suction lines connected to the piston and extending from the cylinder block; and an oil pump fluidically communicating with the plurality of oil suction lines and driven according to a pump Electronic Control Unit (ECU) when an oil pressure of the engine rises or an intake manifold negative pressure decreases, thus generating a suction force at the oil suction lines, wherein the pump Electronic Control Unit (ECU) is associated with the engine ECU to control the oil pump. - View Dependent Claims (14, 15, 16)
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Specification