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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
---|---|
국제특허분류(IPC7판) |
|
출원번호 | US-0212049 (1988-06-24) |
우선권정보 | AT-0002949 (1983-08-17) |
발명자 / 주소 |
|
인용정보 | 피인용 횟수 : 3 인용 특허 : 8 |
A propeller is used to displace a vehicle at a reduced speed but with a high slip of approximately at least 60% and has a quality coefficient of at least 70% for 100% slip. The ratio of the diameter of the propeller to its pitch is approximately 1.18 to 2.9 times the value of the quality coefficient
In a drive system for propelling a land or water vehicle at a reduced speed by rotation of a propeller in the air with a high slip of approximately at least 60% and having a quality coefficient of at least 70% for 100% slip, the improvement wherein the propeller is of substantially constant pitch; t
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