Claims
- 1. A flywheel assembly for an internal combustion engine having a crankshaft, comprising: a first flywheel having a boss portion fixedly mounted on said crankshaft, a second flywheel rotatably mounted on said boss portion of said first flywheel through a bearing, said second flywheel having an annular recess formed therein at a location adjacent said first flywheel, a centrifugal type clutch housed in said recess of said second flywheel and being operable to interconnect said crankshaft and second flywheel when rotation speed of said engine is less than a predetermined level and adapted to disengage when engine rotation speed exceeds said predetermined level, said centrifugal type clutch including clutch shoes disposed in said recess, each being pivotally supported on said first flywheel, said clutch shoes each having a weighted portion and a friction engaging portion formed at the opposite ends thereof, being normally urged by spring means in a direction to hold said friction engaging portion in engagement with an inner peripheral wall surface of said recess.
- 2. A flywheel assembly according to claim 1, comprising a hydraulic control means between said flywheels for hydraulically connecting said first and second flywheels during disengagement of said centrifugal type clutch.
- 3. A flywheel assembly according to claim 2, wherein said hydraulic control means comprises a plurality of first grooves formed in one side surface of said first flywheel and extending generally in radial directions, and a plurality of second grooves formed in a side surface of said second flywheel in confrontation with said first grooves and extending generally in radial directions, said first and second grooves being in fluid communication with a source of hydraulic oil so that oil is forced to flow through said first and second grooves thereby hydraulically connecting said first and second flywheels with each other.
- 4. A flywheel assembly according to claim 1, wherein said first flywheel is a rotor of a magneto.
Priority Claims (1)
Number |
Date |
Country |
Kind |
51-136216 |
Oct 1976 |
JPX |
|
CROSS-RELATED APPLICATION
This application is a continuation-in-part of the copending application Ser. No. 839,123 filed Oct. 3, 1977, now abandoned, and claims the priority of the application filed in Japan Oct. 8, 1976.
US Referenced Citations (13)
Continuation in Parts (1)
|
Number |
Date |
Country |
Parent |
839123 |
Oct 1977 |
|