US 2004/0104152 A1 · Filter apparatus

Abstract

A filter is provided within a case. A to-be-filtered fluid flowing into the case is passed through a peripheral wall of the filter. Thereby, foreign matter included in the to-be-filtered fluid is captured by filtration. A cleaning member is provided within the case. The cleaning member pressurizes the to-be-filtered fluid by a pressure fluid, and causes the pressurized to-be-filtered fluid to pass through the peripheral wall of the filter in a direction reverse to a direction in which the to-be-filtered fluid is filtered. When foreign matter captured in the filter is to be removed and cleaned, the to-be-filtered fluid remaining in the case is pressurized by the cleaning member and caused to flow in a direction reverse to a direction in which the to-be-filtered fluid is filtered. Thereby, foreign matter captured by the peripheral wall of the filter is removed.

Claims15

Dependent claims

A filter apparatus that filters a to-be-filtered fluid and removes foreign matter included in the to-be-filtered fluid, comprising:

a case;
to-be-filtered fluid intake means for causing the to-be-filtered fluid to flow into the case;
to-be-filtered fluid discharge means for discharging the to-be-filtered fluid from the case to the outside;
a filter, provided within the case, for capturing foreign matter by passing the to-be-filtered fluid through, while the to-be-filtered fluid flows in from the to-be-filtered fluid intake means and flows out from the to-be-filtered fluid discharge means;
cleaning means, provided within the case, for pressurizing the to-be-filtered fluid within the case, causing the to-be-filtered fluid to pass through the filter in a direction reverse to a direction in which the to-be-filtered fluid is filtered, and removing the foreign matter adhering to the filter;
pressure fluid intake means for making a pressure fluid act on the cleaning means, and causing the cleaning means to pressurize the to-be-filtered fluid within the case;
and
pressure fluid discharge means for discharging the pressure fluid that is supplied from the pressure fluid intake means to act on the cleaning means.

5 more elements

A filter apparatus that filters a to-be-filtered fluid and removes foreign matter included in the to-be-filtered fluid, comprising:

a base block having a plurality of pairs of inlet ports and outlet ports in an upper surface thereof;
a plurality of cases each having a cylindrical shape with a closed upper end face and an opened lower end face, one of said inlet ports and one of said outlet ports being opposed to the opened lower end face of the case, and the plurality of cases being fluid-tightly provided on the upper surface of the base block;
to-be-filtered fluid intake means, provided in the base block, for feeding a to-be-filtered fluid into each of the plurality of cases;
to-be-filtered fluid discharge means, provided in the base block, for discharging to the outside the to-be-filtered fluid fed into each of the plurality of cases;
a filter, provided within each of the cases, for capturing foreign matter by passing the to-be-filtered fluid through, while the to-be-filtered fluid flows in from the to-be-filtered fluid intake means and flows out from the to-be-filtered fluid discharge means;
cleaning means, provided within each of the cases, for pressurizing the to-be-filtered fluid within each is case, causing the to-be-filtered fluid to pass through the filter in a direction reverse to a direction in which the to-be-filtered fluid is filtered, and removing the foreign matter adhering to the filter;
pressure fluid intake means for making a pressure fluid act on the cleaning means, and causing the cleaning means to pressurize the to-be-filtered fluid within the case;
and
pressure fluid discharge means for discharging the pressure fluid that is supplied from the pressure fluid intake means to act on the cleaning means.

6 more elements

Dependencies are inferred from the claim text.

Filter apparatus

Life of this patent

Filter apparatus

Life of this patent

Abstract

Claims15