30results about How to "Reduces clogged filters" patented technology

An ECU reduces a fuel flow rate discharged from an electric pump to the filter when a fuel temperature and a fuel pressure in the filter detected by a sensor portion drop. Since a mechanical pump continues to be driven without respect to the fuel quantity discharged from the electric pumps when the fuel flow rate discharged from the electric pump is decreased, a suction pressure is generated at an inlet of the filter. The fuel in a recirculation passage is introduced into the filter through a branch passage. As the result, relatively high temperature fuel is introduced into the filter to melt a solidified fuel causing a clogging of the filter.

The invention relates to a swimming pool cleaning apparatus comprising:at least one hydraulic liquid circulation circuit between at least one liquid inlet (3) and at least one liquid outlet (4), and through a removable filtration device of the cleaning apparatus.The filtration device comprises at least one filtration chamber (8) comprising:a cover (2),a filtration basket (17),the hydraulic fluid circulation circuit comprising a liquid discharge tube (20) emerging from the apparatus through an opening (4) formed in the cover (2) of the filtration device,the filtration basket (17) comprising a central filtering wall (9) surrounding the liquid discharge tube (20) over at least a part of its length.

A novel decoction device for Chinese herbal medicines comprises a tank, a filter screen, a lower cover, a lock ring, open-cover cylinders and an open-ring cylinder, wherein the filter screen is arranged at the lower part in the tank; the lower cover is arranged at the lower end of the tank; the lock ring is arranged on an excircle at a joint of the lower cover and the tank; the open-cover cylinders are vertically and symmetrically arranged on two sides of the tank, upper parts of the open-cover cylinders are connected with two sides of the tank, and lower ends of the open-cover cylinders are connected with two sides of the lower cover; the open-ring cylinder is horizontally arranged at the lower part of the front of the tank, one end of the open-ring cylinder is connected with the tank, and the other end of the open-ring cylinder is connected with the upper surface of the lock ring. With adoption of the technical scheme, good effects are realized; filter screen blockage is reduced effectively by the novel filter screen at the lower part of the novel decoction device for the Chinese herbal medicines, the filter screen is convenient to replace, decoction dregs are dumped quite conveniently, splash of the decoction dregs during taking is avoided, overall use is more convenient and faster, and convenience and benefits are brought to an enterprise.

Embodiments of the present disclosure are directed to a device and method for the filtration of gray water from a household. In some embodiments, the gray water can be filtered using a conical rotor and filtration media, which can provide enhanced filtration through the use of Taylor vorticity filtration. The filtered water can have various uses back in the household after filtration.

This invention relates to image formation toner, 2-component developer, image formation method and method for manufacturing image formation toner, for preventing clogging of the filter. Toner is used in which the ratio of the component measured by GPC to have a molecular weight between 500 to 1000 is 10 parts by weight or less with respect to 100 parts by weight of the entire toner. Since the case of clogging of the HEPA filter is the 500 to 1000 molecular weight component, clogging of the filter is prevented by reducing this component.

The present invention relates to a bioreactor and a method for operating a bioreactor which comprises a chamber (100) capable of receiving a liquid media, and a filter assembly (200) comprising a perfusion filter (210; 212; 214). The filter assembly (200) is disposed in the chamber (100) and the filter assembly (200) is free to move within the chamber (100). The filter assembly (200) comprises means for coupling a harvesting flow through said filter (210; 212; 214) and means for coupling a feed flow through said filter in an opposite direction compared to the harvesting flow. Through this arrangement, the clogging prevention of the perfusion filter can be improved.

There is provided a method for producing hypromellose phthalate (HPMCP) which exhibits an excellent solubility when dissolved in a solvent, while suppressing formation of undissolved matter. More specifically, there is provided a method for producing HPMCP, including an esterification step of esterifying hypromellose dissolved in glacial acetic acid with phthalic anhydride in the presence of sodium acetate at a temperature of from 75 to 100° C. to obtain a reaction product solution; a cooling step of cooling the reaction product solution to 70° C. or lower; and a precipitation step of mixing the cooled reaction product solution with water of from 0 to 40° C. to obtain a suspension of precipitated HPMCP.

The invention relates to a composition containing a particulate solid, a plastic material and a compound obtained / obtainable by a process comprising (i) reacting at a temperature of 12O° C. or less, or 100° C. or less a hydroxycarboxylic acid and a lactone; and (ii) optionally reacting the product of (i) with a C1-50 carboxylic acid. The invention further relates to novel compounds, and the use of the compound as a dispersant in a plastic material.

The present invention relates to a filter pack formed by stacking rings, being used as a final element in multistage or single-stage filters. The filtration process is performed by consecutively separating the particles in suspension according to the thickness thereof in different areas.