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US 11,278,923 B2Granted
Spraying apparatus
AssigneePanasonic Intellectual Property Management Co., Ltd.
InventorsAkira Isomi, Daisuke Tabata, Yuki Ueda
Life of this patent
Estimating the term…
Abstract
A spraying apparatus includes a spraying apparatus main body, a liquid introduction portion, a gas introduction portion, a gas-liquid spout portion, a liquid inlet, a gas inlet, a tubular flow passage, a spout, a flow passage having a taper, a straightener, and a projection portion. The liquid inlet allows a liquid flow to enter a gas-liquid mixer which is a space inside the annular gas introduction portion. The gas inlet allows a gas flow to enter the gas-liquid mixer. The straightener has an opening having an uneven shape provided in the flow passage having the taper. The projection portion is provided in the liquid introduction portion, protrudes to the gas-liquid mixer, and forms the straightener and a straightening outlet.
Claims10
A spraying apparatus comprising:
- a spraying apparatus main body that has a liquid flow passage and a gas flow passage;
- a liquid introduction portion that is provided at an end portion of the liquid flow passage;
- an annular gas introduction portion that is provided at an end portion of the gas flow passage;
- a gas-liquid spout portion that covers the liquid introduction portion and the annular gas introduction portion;
- a liquid inlet that is provided for communicating with the liquid flow passage at at least one place of the liquid introduction portion and allows a liquid flow to enter a gas-liquid mixer, which is a space inside the annular gas introduction portion;
- a gas inlet that is provided for communicating with the gas flow passage at at least one place of the annular gas introduction portion and allows a gas flow to enter the gas-liquid mixer;
- a tubular flow passage, which penetrates the gas-liquid spout portion, that mixes the gas flow exited from the gas inlet and the liquid flow exited from the liquid inlet, and allows a gas-liquid mixed fluid in which a liquid is atomized to exit;
- a spout that is provided in the gas-liquid spout portion for communicating with the tubular flow passage and spouts the gas-liquid mixed fluid;
- a flow passage that is provided in the gas-liquid spout portion and has a taper communicating with the spout;
- a straightener provided in the flow passage, the straightener having an opening for noise reduction;
- and
- a projection portion that is provided in the liquid introduction portion, protrudes to the gas-liquid mixer, and forms the straightener and a straightening outlet,
- wherein the straightener is provided in the gas-liquid spout portion on a spout side of the gas-liquid mixer to form the straightening outlet,
- wherein, along a plane that is orthogonal to a central axis of the spraying apparatus main body that intersects the opening of the straightener, a width of the opening along a line extending from a center of the projection portion radially outward varies around a circumference of the projection portion, and
- wherein in a case where the spraying apparatus is cut along an inner surface of the gas-liquid spout portion in a direction intersecting the central axis of the spraying apparatus main body and is viewed from a spraying apparatus main body side, an area ratio of an area of the straightening outlet to an area of the opening of the straightener is greater than 0% and 60% or less, and the area of the straightening outlet is greater than an area of the tubular flow passage.
12 more elements
A spraying apparatus comprising:
- a spraying apparatus main body that has a liquid flow passage and a gas flow passage;
- a liquid introduction portion that is provided at an end portion of the liquid flow passage;
- an annular gas introduction portion that is provided at an end portion of the gas flow passage;
- a gas-liquid spout portion that covers the liquid introduction portion and the annular gas introduction portion;
- a liquid inlet that is provided for communicating with the liquid flow passage at at least one place of the liquid introduction portion and allows a liquid flow to enter a gas-liquid mixer, which is a space inside the annular gas introduction portion;
- a gas inlet that is provided for communicating with the gas flow passage at at least one place of the annular gas introduction portion and allows a gas flow to enter the gas-liquid mixer;
- a tubular flow passage, which penetrates the gas-liquid spout portion, that mixes the gas flow exited from the gas inlet and the liquid flow exited from the liquid inlet, and allows a gas-liquid mixed fluid in which a liquid is atomized to exit;
- a spout that is provided in the gas-liquid spout portion for communicating with the tubular flow passage and spouts the gas-liquid mixed fluid;
- a flow passage that is provided in the gas-liquid spout portion and has a taper communicating with the spout;
- a straightener provided in the flow passage, the straightener having an opening for noise reduction;
- and
- a projection portion that is provided in the liquid introduction portion, protrudes to the gas-liquid mixer, and forms the straightener and a straightening outlet,
- wherein the straightener is provided in the gas-liquid spout portion on a spout side of the gas-liquid mixer to form the straightening outlet, and
- wherein in a case where the spraying apparatus is cut along an inner surface of the gas-liquid spout portion in a direction intersecting a central axis of the spraying apparatus main body and is viewed from a spraying apparatus main body side, the straightening outlet includes a plurality of triangles disposed on a circumference of the projection portion, an area ratio of an area of the straightening outlet to an area of the opening of the straightener is greater than 0% and 60% or less, and the area of the straightening outlet is greater than an area of the tubular flow passage.
11 more elements
A spraying apparatus comprising:
- a spraying apparatus main body that has a liquid flow passage and a gas flow passage;
- a liquid introduction portion that is provided at an end portion of the liquid flow passage;
- an annular gas introduction portion that is provided at an end portion of the gas flow passage;
- a gas-liquid spout portion that covers the liquid introduction portion and the annular gas introduction portion;
- a liquid inlet that is provided for communicating with the liquid flow passage at at least one place of the liquid introduction portion and allows a liquid flow to enter a gas-liquid mixer, which is a space inside the annular gas introduction portion;
- a gas inlet that is provided for communicating with the gas flow passage at at least one place of the annular gas introduction portion and allows a gas flow to enter the gas-liquid mixer;
- a tubular flow passage, which penetrates the gas-liquid spout portion, that mixes the gas flow exited from the gas inlet and the liquid flow exited from the liquid inlet, and allows a gas-liquid mixed fluid in which a liquid is atomized to exit;
- a spout that is provided in the gas-liquid spout portion for communicating with the tubular flow passage and spouts the gas-liquid mixed fluid;
- a flow passage that is provided in the gas-liquid spout portion and has a taper communicating with the spout;
- a straightener provided in the flow passage, the straightener having an opening for noise reduction;
- and
- a projection portion that is provided in the liquid introduction portion, protrudes to the gas-liquid mixer, and forms the straightener and a straightening outlet,
- wherein the straightener is provided in the gas-liquid spout portion on a spout side of the gas-liquid mixer to form the straightening outlet, and
- wherein in a case where the spraying apparatus is cut along an inner surface of the gas-liquid spout portion in a direction intersecting a central axis of the spraying apparatus main body and is viewed from a spraying apparatus main body side, the straightening outlet includes a circular ring on a circumference of the projection portion, a plurality of triangles are disposed around the circular ring, an area ratio of an area of the straightening outlet to an area of the opening of the straightener is greater than 0% and 60% or less, and the area of the straightening outlet is greater than an area of the tubular flow passage.
11 more elements
Dependencies are inferred from the claim text.