Dishwasher
AssigneeLG Electronics Inc.
InventorsYongjin CHOI, Shinwoo HAN
Life of this patent
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Abstract
An air jet generator according to an embodiment of the present invention includes: an impeller which applies centrifugal force to washing water flowing in a forward direction; a decompression portion which decreases a pressure of the washing water that flows; an air suction portion which is opened to allow air to flow into the decompression portion; a pressing portion which increases pressure so as to crush the air introduced from the air suction portion; an air tap which has a plurality of holes so as to crush the air contained in the washing water that passed through the pressing portion; and a reverse spray nozzle which sprays the washing water toward the air tap in a reverse direction.
Claims14
A dishwasher comprising:
- a tub which accommodates dishes;
- a spray module which sprays washing water toward the dishes in the tub;
- a sump which supplies the washing water to the spray module;
- a pump which pumps the washing water stored in the sump to the spray module;
- and
- an air jet generator which receives a part of the washing water pumped from the pump to form an air bubble in the washing water and discharges the air bubble to the sump,
- wherein the air jet generator comprises:
- a decompression portion which decreases a pressure of the washing water that flows;
- an air suction portion which is opened to allow air to flow into the decompression portion;
- a pressing portion which increases pressure so as to crush the air introduced from the air suction portion;
- an air tap which has a plurality of holes so as to crush the air contained in the washing water that passed through the pressing portion;
- and
- a reverse spray nozzle which sprays the washing water toward the air tap in a reverse direction.
A method of controlling a dishwasher, the method comprising the steps of:
- a normal operation step of injecting air into washing water flowing in a forward direction and passing an air tap to generate an air bubble in the washing water;
- an air tap clogging detecting step of detecting clogging of the air tap;
- and
- a reverse spray step of spraying the washing water in a reverse direction from a reverse spray nozzle, when the clogging of the air tap is detected.
Dependencies are inferred from the claim text.