Positive crankcase ventilation outlet anti-freezing device of intake manifold of vehicle engine
AssigneeHyundai Kefico Corporation
InventorsMin Ki Kim, Hyung Wook Kim, Chan Karam Na
Life of this patent
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Abstract
A positive crankcase ventilation (PCV) outlet anti-freezing device of an intake manifold of a vehicle engine includes a first guide and a second guide formed adjacent to a PCV outlet within an inlet tube of the intake manifold to block direct contact between fresh air and a PCV gas, thereby preventing condensation and freezing of the PCV gas. The first guide and the second guide also can improve flow distribution of the intake manifold by improving fluidity of the fresh air.
Claims7
A positive crankcase ventilation (PCV) outlet anti-freezing device of an intake manifold of a vehicle engine, the PCV outlet anti-freezing device comprising:
- the intake manifold including an inlet tube into which fresh air flows and a PCV outlet formed on an inner circumferential surface of the inlet tube,
- the PCV outlet anti-freezing device provided in the intake manifold, and configured to prevent the PCV outlet from being frozen,
- a first guide that allows the fresh air to flow away from the PCV outlet at a location spaced apart from the PCV outlet formed on the inner circumferential surface of the inlet tube to an inlet end side of the inlet tube, and
- a second guide which is formed on one side portion of a rim of the PCV outlet and blocks direct contact between a part of the fresh air passing through the first guide and the PCV gas discharged from the PCV outlet.
A positive crankcase ventilation (PCV) outlet anti-freezing device of an intake manifold of a vehicle engine, the PCV outlet anti-freezing device comprising:
- the intake manifold including an inlet tube into which fresh air flows and a PCV outlet formed on an inner circumferential surface of the inlet tube,
- the PCV outlet anti-freezing device provided in the intake manifold, and configured to prevent the PCV outlet from being frozen, and
- a first guide that allows the fresh air to flow away from the PCV outlet at a location spaced apart from the PCV outlet formed on the inner circumferential surface of the inlet tube to an inlet end side of the inlet tube,
- wherein a liquid discharge groove which obliquely connects an inner circumferential surface of the PCV outlet with the inner circumferential surface of the inlet tube is formed below the PCV outlet.
Dependencies are inferred from the claim text.