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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
---|---|
국제특허분류(IPC7판) |
|
출원번호 | US-0468609 (1990-01-23) |
발명자 / 주소 |
|
인용정보 | 피인용 횟수 : 2 인용 특허 : 9 |
A fluid dynamic restrictor limits the speed at which the bed of a dump truck can be lowered by discharging fluid from a lift cylinder. The fluid dynamic restrictor defines a fluid vortex that provides a pressure drop proportional to the square of the fluid flow rate. Therefore the maximum rate at wh
A hydraulic lift mechanism for a vehicle having a chassis and a bed mounted on said chassis, said lift mechanism including a piston and cylinder coupled between said chassis and said bed, a pump for supplying fluid under pressure to said cylinder for lifting said bed from said chassis, and a fluid d
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