PCV valve mounting structure
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United States of America Patent
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Mar 16, 2021
Grant Date -
Feb 22, 2018
app pub date -
Aug 14, 2017
filing date -
Aug 17, 2016
priority date (Note) -
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Abstract
A PCV valve mounting structure includes a cylinder head of an engine, an intake manifold coupled with the cylinder head to form a blow-by gas passage. A PCV valve is disposed in the blow-by gas passage. The PCV valve includes a valve case and a plurality of seal members elastically supporting the valve case on the cylinder head and the intake manifold. The PCV valve is configured to control a flow rate of the blow-by gas depending on the negative intake pressure of the engine. The PCV valve has a measuring passage configured to adjust the flow rate of the blow-by gas and positioned upstream of the seal members. An annular space is formed between the cylinder head and the valve case. The annular space extends in the lengthwise longitudinal axial direction from an upstream end of the valve case.
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