US 6,309,185 B1Granted

Flow regulator for water pump

OwnerDer-Fan Sheninventor

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Abstract

A flow regulator for a water pump, working in conjunction with a water pump, having a pump, an inlet pipe, an outlet pipe with a water pressure, and a container. The flow regulator comprises: a main body, installed at the inlet pipe and having a passageway for water flowing through the inlet pipe; a chamber inside the main body; an entrance to the chamber on the main body; a control element, mounted inside the chamber and glidingly movable therein back and forth; a connecting pipe, conducting the water pressure in the outlet pipe to the chamber; and a spring. The water pressure causes the control element to move within the chamber, resulting in the passageway to be narrowed. The spring counters the water pressure, such that when the water pressure decreases the passageway is widened. Thereby the water pressure controls the flow of water, according to demand, such that start-stop cycles of the water pump are lengthened.

Claims2

Dependent claims

A flow regulator in combination with a water pump comprising:

a main body installed in line with an inlet pipe of said pump, said main body has a passageway to receive water flowing through said inlet pipe,
a sleeve mounted on said top side of said main body and having an interior chamber,
an entrance on said main body that allows water to flow from said inlet pipe into said chamber of said sleeve,
a control element movably mounted inside said chamber, said control element includes a biasing spring that opposes said water pressure, and
an adjusting device that can be moved by a user of said flow regulator to adjust an elastic force of said spring;
such that
said control element narrows said passageway as said control element moves in response to an increase in a water pressure in said outlet pipe, and said control element widens said passageway as said control element moves in response to a decrease in a water pressure in said outlet pipe, said control element thereby regulating a flow rate in said inlet pipe, and
said adjusting device controls an equilibrium point of said flow regulator, said equilibrium point being defined by means of said elastic force of said spring.

5 more elements

Dependencies are inferred from the claim text.