A fluid filter, which is adapted for separating a less dense fluid floating on a high dense fluid, includes at least a fluid filtering arrangement including a floating wing adapted for floating on the less dense fluid and at least a fluid outlet formed on the floating wing, and a container body, which is extended from the floating wing, having a fluid collecting cavity communicating with the fluid outlet, wherein the fluid outlet is formed at a position above the fluid collecting cavity. Therefo...

A fluid actuator configured for achieving extended cycle life and reduced overall actuator height. The actuator may include a nesting arrangement between portions of the actuator to reduce overall height and provide stability. The actuator may also join movable members and include a guidance mechanism to avoid undesired contact between actuator portions.

A fluid control device 1 has an upper space S1 formed between and defined by the upper surface of a piston 10 and the lower surface of top wall 8a of an upper casing 8, and a lower space S2 formed between and defined by the lower surface of the piston 10 and the upper surface of bottom wall 7a of a lower casing 7. A compression coil spring 11 for biasing the piston 10 is disposed in one of the upper space S1 and the lower space S2, and a compressed air admitting passage 15 communicates with the ...

An expansion-and-compressor device of a fluid machine has a pump mode operation in which the expansion-and-compressor device is rotated by a driving force from a driving source to compress working fluid, and a motor mode operation in which the fluid pressure is converted into energy of movement to output kinetic energy. The fluid machine further has a transmission device for transmitting the driving force from the driving source with increased rotational speed, when the expansion-and-compressor ...

A piston adapted to be engaged inside a cylindrical container is constituted by an elastic member and includes: a sliding member having an upper fluidtight portion and a lower fluidtight portion, both of which fluidtightly and slidably contact an inner wall of the cylindrical container; and a support member having an upper concentric flexion and a lower concentric flexion to urge the sliding member against the inner wall of the cylindrical container.

Downsizing a piston stroke dimension in a compressor that reciprocates pistons is accomplished by changing a radial directional component of a shaft of a motion that is transferred to a link from a revolving member revolved by the shaft when transferred to the link attached to the pistons. Thereby, when the revolving member, driven by a shaft, revolves once, a center of a sliding pin appears to reciprocate once in a vertical direction as it goes back and forth on both sides interposing a piston ...

A fluid ejection device according to a particular embodiment of the invention includes a base, a layer supported by the base, the layer defining an opening of variable size for containing fluid to be ejected from the fluid ejection device, a fluid driver supported by the base and adapted to eject fluid drops of different sizes from the fluid ejection device, and at least one controller operably coupled with the layer to adjust the size of the opening and operably coupled with the fluid driver to...

A flow controller (1), comprising a valve body (4) having flow paths forming an inlet and an outlet of fluid, a diaphragm (6) held fixedly between the valve body and a bonnet (5), and an operating mechanism (7) moving the diaphragm vertically, wherein the valve body flow paths communicate with each other through a projection-free communication path (8), the a diaphragm is formed so that, when lowering, it comes into close contact with the communication path so that it closes the flow path and, w...

A fluid system for plural motor driven pumps is disclosed. The fluid system includes a hydraulic motor, a fluid reservoir, and a plurality of fixed displacement pumps. A control valve selectively directs flow of fluid to either a reservoir or the hydraulic motor. A control system responsive to an external condition and an internal condition generates a signal for each condition. The control valve is operated by the signals. The internal signal may be generated by an internal pressure monitoring ...

There is disclosed a magnetic fluid medium which comprises a plurality of ferro- or ferri-magnetic particles, each of which particles has a largest dimension no greater than 100 nm, said particles having been prepared by a process which includes a step in which the particles are formed within an organic macromolecular shell.