Pump
AssigneeSeiko Epson Corporation
InventorsTakeshi Seto, Kunihiko Takagi
Life of this patent
Estimating the term…
Abstract
A pump includes: a pump chamber for which a capacity is changeable; an inlet channel which allows a working fluid to flow into the pump chamber; an inlet side fluid resistance element disposed between the pump chamber and the inlet channel; an outlet channel which allows the working fluid to flow out of the pump chamber; and a pipeline element formed inside the outlet channel, wherein a rotational flow generation structure, which generates a rotational flow of the working fluid, is provided in the pump chamber, and wherein the outlet channel is located adjacent to the rotational center of the rotational flow.
Claims17
A pump comprising:
- a pump chamber for which a capacity is changeable;
- an inlet channel which allows a working fluid to flow into the pump chamber;
- an inlet side fluid resistance element disposed between the pump chamber and the inlet channel;
- an outlet channel which allows the working fluid to flow out of the pump chamber;
- a pipeline element formed inside the outlet channel;
- and
- a rotational flow generation structure, which generates a rotational flow of the working fluid, being provided in the pump chamber,
- the outlet channel being located adjacent to the rotational center of the rotational flow, and
- the inlet channel and the outlet channel being configured to allow the working fluid to flow into the pump chamber and out of the pump chamber simultaneously.
A pump comprising:
- a pump chamber for which a capacity is changeable;
- an inlet channel which allows a working fluid to flow into the pump chamber;
- an inlet side fluid resistance element disposed between the pump chamber and the inlet channel;
- an outlet channel which allows the working fluid to flow out of the pump chamber;
- a pipeline element formed inside the outlet channel, a synthetic inertance value of the inlet channel being smaller than a synthetic inertance value of the outlet channel;
- and
- a buffer chamber, which reduces the inertance of a fluid, being formed such that the buffer chamber surrounds the outlet channel,
- the inlet channel and the outlet channel being configured to allow the working fluid to flow into the pump chamber and out of the pump chamber simultaneously.
A pump comprising:
- an approximately rotor-configured pump chamber for which a capacity is changeable;
- an inlet channel which allows a working fluid to flow into the pump chamber;
- an inlet side fluid resistance element disposed between the pump chamber and the inlet channel;
- an outlet channel which allows the working fluid to flow out of the pump chamber;
- and
- a pipeline element formed inside the outlet channel, a synthetic inertance value of the inlet channel being smaller than a synthetic inertance value of the outlet channel,
- the side wall of the pump chamber being formed of an annular member,
- the inlet channel and the outlet channel being configured to allow the working fluid to flow into the pump chamber and out of the pump chamber simultaneously.
Dependencies are inferred from the claim text.