초록

Reed valves for internal combustion engines are disclosed, the reed valves having protective coating of synthetic rubber.

대표청구항 ▼

A two-cycle engine comprising a cylinder, a piston working in the cylinder, the engine having a compression chamber below the piston, a fuel intake system including a ported valve seat for delivering fuel into the compression chamber, the cylinder having an exhaust port and a transfer passage for de

A two-cycle engine comprising a cylinder, a piston working in the cylinder, the engine having a compression chamber below the piston, a fuel intake system including a ported valve seat for delivering fuel into the compression chamber, the cylinder having an exhaust port and a transfer passage for delivering compressed fuel from the compression chamber to the space above the piston, and a reed valve overlying the port in the valve seat and adapted to flex away from the ported seat during the upward stroke of the piston, the reed valve being of multiple layer construction with an outlet layer formed of relatively rigid resin material and an inner layer presented inwardly for contact with the valve seat and formed of relatively flexible temperature-resistant synthetic rubber material, the rubber layer being thinner than the resin layer and the resin and rubber layers being adhesively bonded to each other.