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    • 5. 发明授权
    • Two stage oil free air compressor
    • 两级无油空压机
    • US06183211B2
    • 2001-02-06
    • US09247705
    • 1999-02-09
    • Mark W. Wood
    • Mark W. Wood
    • D06F7524
    • F04B25/005F04B39/0094
    • A two stage reciprocating piston oil free air compressor having an improved service interval. In a first stage, a first wobble piston is reciprocated in a first cylinder to compress ambient air to an intermediate pressure. In a second stage a second wobble piston is reciprocated in a second cylinder to compress the intermediate pressure air to a desired high pressure. Each wobble piston is provided with a seal which seals to the adjacent cylinder walls as the piston reciprocates and rocks. The stroke of the higher pressure second stage piston is less than the stroke of the lower pressure first stage piston to increase the operating life of the second seal, preferably to substantially the same operating life as the first seal.
    • 两级往复式活塞无油空气压缩机具有改进的使用间隔。 在第一阶段中,第一摆动活塞在第一气缸中往复运动,以将环境空气压缩至中间压力。 在第二阶段中,第二摆动活塞在第二气缸中往复运动,以将中压空气压缩至期望的高压。 每个摆动活塞都设有一个密封件,当活塞往复运动并摇动时,该密封件将密封到相邻的气缸壁上。 较高压力的第二级活塞的行程小于低压第一级活塞的行程,以增加第二密封件的使用寿命,优选地与第一密封件基本相同的使用寿命。
    • 9. 发明授权
    • Horizontal shaft oil pump
    • 水平轴油泵
    • US4568253A
    • 1986-02-04
    • US756921
    • 1985-07-18
    • Mark W. Wood
    • Mark W. Wood
    • F04C29/02F04B39/02F01C21/04F04D1/04
    • F04C29/028Y10S417/902
    • A horizontal shaft oil pump is provided for use in a compressor comprising an outer housing having an inlet, an outlet, an oil sump, and a crankcase mounted therein. The crankcase has a generally vertically disposed passageway therein in communication with the oil sump, and a crankshaft is horizontally rotatably received in a bore in the crankcase. A reduced diameter portion of the crankshaft forms between the crankshaft and crankcase an annular chamber in communication with the passageway, and a pair of oppositely angularly disposed helical grooves are disposed in the crankshaft on opposite sides of and in communication with the annular chamber. Upon rotation of the crankshaft, a low pressure area is developed in the annular chamber causing lubricant to be drawn upwardly through the crankcase passageway and into the annular chamber. The rotating helical grooves deliver lubricant from the annular chamber to opposite end portions of the crankshaft for lubricating bearings and other moving parts.
    • 提供一种在压缩机中使用的水平轴油泵,其包括具有入口,出口,油底壳和安装在其中的曲轴箱的外壳。 曲轴箱具有与油槽连通的通常垂直设置的通道,曲轴水平地可旋转地容纳在曲轴箱的孔中。 曲轴的直径减小部分在曲轴和曲轴箱之间形成与通道连通的环形室,并且一对相对角度设置的螺旋槽设置在曲轴上与环形室相对并与其连通的位置。 在曲轴旋转时,在环形室中产生低压区域,从而使润滑剂向上拉过,通过曲轴箱通道进入环形室。 旋转的螺旋槽将润滑剂从环形室输送到曲轴的相对端部,用于润滑轴承和其它运动部件。