| 摘要 |
The cylinder head is a construction, by means of which cheaper and quieter engines can be manufactured. The most essential part of the construction is a truncated cone, flattened over up to one quarter of the circumference, which alternately frees the inlet and exhaust ports.The advantages of this gas control are: 1. low-noise construction 2. extremely low drive power of the control 3. over-revving of the control impossible 4. low maintenance n
|
