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    • 42. 发明授权
    • Gear pump or motor with serrated grooves on inner wall for break-in
operation
    • 齿轮泵或电机,内壁有锯齿槽,用于进入作业
    • US4334840A
    • 1982-06-15
    • US114884
    • 1980-01-24
    • Hideo Teruyama
    • Hideo Teruyama
    • F04C2/18F04C2/08F04C15/00F01C1/18F01C21/10F03C2/08
    • F04C15/0003F04C2/086Y10T29/49242
    • In order to prevent a decrease in volumetric efficiency from occurring when a gear pump or motor, 10, is operated at room temperature after operating at a lower temperature or when it is operated at a higher temperature after operation at a lower temperature, the housing, 13, containing two interlocking gears 17 and 18 is made of a ferrous material, which is the same as that of the two gears, and a large number of serrated grooves, 40, are disposed in the axial direction on the low pressure side of the inner wall surfaces of the gear bower 16. Therefore in the break-in operation of the gear pump or motor when the inner wall surfaces at the low pressure side of the gear bower are cut off by the tooth crests of the two gears, built-up edges, which are then formed on the tooth crests of these gears, can drop off immediately, owing to the occurrence of impact forces when they clash with the angular parts of the grooves, and result in a smooth break-in to inner wall surfaces at the low pressure side of the gear bower. Thus the use of housings made of ferrous materials is excellent for the above temperature characteristics.
    • 为了防止当齿轮泵或马达10在较低温度下操作之后在室温下操作或当在较低温度下操作之后在较高温度下操作时发生体积效率的降低, 如图13所示,包含两个互锁齿轮17和18由与两个齿轮相同的铁质材料制成,并且在轴向方向上在轴向方向上设置有多个锯齿形槽40 因此,当齿轮泵的低压侧的内壁面被两个齿轮的齿顶切断时,在齿轮泵或马达的中断运转中, 这些齿轮的齿顶上形成的上缘可能由于在与槽的角部分碰撞时发生冲击力而立即脱落,并且导致内壁表面平滑地折入 在低压 挡风玻璃的一侧。 因此,使用由铁质材料制成的外壳对于上述温度特性是优异的。
    • 43. 发明授权
    • Rotary piston engine
    • 旋转活塞发动机
    • US4078526A
    • 1978-03-14
    • US690143
    • 1976-05-26
    • Josef Gail
    • Josef Gail
    • F04C2/18F01B9/02F01B13/06F01C1/12F01C1/18F02B57/00F02B75/02F03C1/26F03C1/30F03C2/08F02B53/08
    • F01C1/126F01B13/068F01B9/023F02B57/00F02B2075/027Y02T10/17
    • A rotary piston engine whose two pistons each have one or more sectors of greater radial dimensions sealingly engaging inner walls of two cylindrical, intersecting cavities respectively receiving the pistons, and one or more sectors of smaller radial dimensions which engage the larger sectors in all angular positions of the piston and radially bound working chambers with the inner casing wall. The pistons are coupled for simultaneous rotation of equal angular velocity, and the working chambers expand and contract cyclically because they are circumferentially bounded by the larger piston sectors and by a sealing arrangement connecting the engaged piston portions. A compressor drivingly connected to one of the rotary pistons supplies compressed fluid to the working chamber when it is at its minimum volume, and explosion of the fluid expands the chamber and turns the piston.
    • 一种旋转活塞式发动机,其两个活塞各自具有一个或多个较大径向尺寸的扇区,其密封地接合分别接收活塞的两个圆柱形相交空腔的内壁,以及一个或多个较小径向尺寸的扇区,其在所有角位置接合较大的扇区 的活塞和径向结合的工作室与内壳壁。 活塞被联接以相同角速度的同时旋转,并且工作室周期性地膨胀和收缩,因为它们周向地由更大的活塞扇区限定,并且通过连接接合的活塞部分的密封装置。 驱动地连接到一个旋转活塞的压缩机在处于最小体积时将压缩流体供应到工作室,并且流体的爆炸使腔室膨胀并转动活塞。
    • 44. 发明授权
    • Pump structure
    • 泵结构
    • US4057375A
    • 1977-11-08
    • US735026
    • 1976-10-22
    • Paul W. Nachtrieb
    • Paul W. Nachtrieb
    • F04C2/12F04C15/00F01C1/18F01C21/12F04C1/08F04C15/02
    • F04C15/0061F04C15/0049F04C2/126
    • A semi-positive displacement pump of modular structure that includes a center plate, a pump defining housing removably secured to a first side thereof, a gear containing housing removably affixed to a second side, first and second impellers disposed in spaced relationship in the pump cavity between a fluid inlet and fluid outlet defined therein. The pump may be selectively driven either manually or by power means. The bottom of the pump chamber and the surface of the center plate most adjacent the pump chamber have first and second sets of aligned pressure relief cavities formed therein. The first and second impellers include first and second cylindrical hubs of substantial diameter that have their ends closely disposed to transverse center portions of the bottom of the pump chamber and center plate defined between the first and second pressure relief cavities formed therein. The first and second impellers have first and second circumferentially spaced vanes extending radially therefrom which cooperate with the interior surface of the pump chamber to define first and second laterally spaced confined spaces that force fluid from the inlet to the outlet side of the pump chamber as the first and second impellers are counter-rotated.
    • 一种模块化结构的半正排量泵,其包括中心板,可拆卸地固定到其第一侧的泵限定壳体,可移除地固定到第二侧的齿轮容纳壳体,在泵腔中以间隔开的关系设置的第一和第二叶轮 在流体入口和限定在其中的流体出口之间。 泵可以手动或通过动力装置选择性地驱动。 泵室的底部和最靠近泵室的中心板的表面具有形成在其中的第一组和第二组对准的压力释放空腔。 第一和第二叶轮包括大体直径的第一和第二圆柱形轮毂,它们的端部紧密地设置在泵室的底部的横向中心部分上,中心板限定在形成于其中的第一和第二压力释放腔之间。 第一和第二叶轮具有从其径向延伸的第一和第二周向间隔的叶片,其与泵室的内表面配合以限定第一和第二横向间隔开的限制空间,其将流体从泵室的入口到出口侧作为 第一和第二叶轮反向旋转。
    • 45. 发明授权
    • Internal combustion engine
    • US4012903A
    • 1977-03-22
    • US511430
    • 1974-10-02
    • Frank E. Riedl
    • Frank E. Riedl
    • F01C1/18F02B53/08F02B53/00
    • F02B53/08F01C1/18Y02T10/17
    • An internal combustion engine comprises a housing defining an air inlet opening, a first set of rotatably mounted interengaging air intake and compression rotor wheels, and an air passageway connecting said air intake and compression rotor wheels to a second set of rotatably mounted interengaging compression and metering rotor wheels. The compression and metering rotor wheels deliver air to a combustion chamber defined by the housing. Fuel is injected into the combustion chamber and ignited. The combustion chamber communicates with a third set of rotatably mounted interengaging output rotor wheels which are driven by the exhaust gases and are connected to drive the aforementioned rotor wheels. The working area of the output rotor wheels is greater than the working area of the compression and metering rotor wheels, wherein the combustion gases always drive the output rotor wheels. Alternative embodiments of the internal combustion engine include an additional set of compression and metering rotors which deliver air to a jet combustion chamber. Other embodiments of the internal combustion engine include an exhaust manifold connected to the outlet from output drive rotors to direct the exhaust gases around the engine for exhaust. The air passageway connecting the first set of air intake and compression rotor wheels and the second set of compression and metering rotor wheels may be disposed within the exhaust manifold to heat the compressed air, and the combustion chamber and the air passage leading thereto may also be disposed within the exhaust manifold to maintain them at a high temperature. The exhaust manifold may also be disposed across the air inlet opening whereby entering air passes over the exhaust manifold and is preheated. Gear means for driving the compression and metering rotors at at least two different speeds and means for selectively engaging the gear means for driving the compression and metering rotors at a desired one of the speeds are also provided.