| 摘要 |
<p>The present invention provides an intake manifold advanced in uniform distribution of PCV gas. The intake manifold includes a main body, a throttle valve, a gas collection chamber, intake passages and a PCV gas supply port. The throttle valve is connected to the main body in a prescribed position to supply fuel-air mixture to the main body. The gas collection chamber is arranged in the main body to temporarily store the fuel-air mixture supplied by the throttle valve to the gas collection chamber. The gas collection chamber allows the PCV gas to be pumped to the gas collection chamber again by a combustion chamber of an engine. The intake passages are arranged around the main body in a streamline shape, such that the fuel-air mixture is uniformly supplied to the combustion chamber from the gas collection chamber. The PCV gas supply port is arranged in the gas collection chamber to guide the PCV gas, such that the PCV gas is uniformly supplied to the intake passages. The PCV gas supplyport is provided with a hollow gas supply port body; an inlet, formed by opening a first end of the hollow gas supply port body so as to pump the PCV gas to the gas supply port body through the inlet; and a guiding board arranged on a second end of the gas supply port body. A guiding projection is projected to the gas supply port body from the guiding board.</p> |
