Freeze prevention arrangement for pcv channel and intake manifold
AssigneeAisin Seiki Kabushiki Kaisha
InventorsTomohisa Senda, Hideaki Teramoto
Life of this patent
Estimating the term…
Abstract
Provided are an arrangement capable of reliably preventing freeze of a PCV channel without requiring additional piping and an intake manifold having this arrangement. This arrangement for freeze prevention of a PCV channel includes a PCV channel returning blowby gas containing un-combusted fuel gas as a main component thereof and leaked into an engine to an intake port, an EGR channel returning exhaust gas exhausted from the engine to the intake port, and a heating portion as a common portion between a PCV outer wall of the PCV channel and an EGR outer wall of the EGR channel.
Claims5
An arrangement for freeze prevention of a PCV channel, the arrangement comprising:
- a PCV channel returning blowby gas containing un-combusted fuel gas as a main component thereof and leaked into an engine to an intake port;
- an EGR channel returning exhaust gas exhausted from the engine to the intake port;
- and
- a heating portion as a common portion between a PCV outer wall of the PCV channel and an EGR outer wall of the EGR channel;
- wherein a length of the heating portion in a longitudinal direction thereof spans, in a juxtaposing direction of a plurality of the intake ports, from the intake port on one end side to the intake port on the other end side.
Dependencies are inferred from the claim text.