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A rotary-type filling machine includes a rotary body, a liquid distribution chamber, a plurality of filling flow path configuration units, each of which has a fluid path constituted by a liquid path connected to the liquid distribution chamber and a liquid valve and configured to individually introd

A rotary-type filling machine includes a rotary body, a liquid distribution chamber, a plurality of filling flow path configuration units, each of which has a fluid path constituted by a liquid path connected to the liquid distribution chamber and a liquid valve and configured to individually introduce a liquid into a container, a filling control device, a liquid supply unit, a pressure difference information detection unit configured to detect pressure difference information between a liquid distribution chamber pressure, which is a pressure of the liquid in the liquid distribution chamber, and a filling atmospheric pressure detected as a pressure of a flow release unit in a filling flow path configuration unit at an arbitrary radial direction position of the rotary body, and a rotation information detection unit configured to detect rotation information of the rotary body.

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1. A rotary-type filling machine comprising: a rotary body rotatable about a rotation central axis;a liquid distribution chamber that has a cylindrical shape and is configured to store a liquid supplied from an outside of the rotary body, the center of the liquid distribution chamber being coinciden

1. A rotary-type filling machine comprising: a rotary body rotatable about a rotation central axis;a liquid distribution chamber that has a cylindrical shape and is configured to store a liquid supplied from an outside of the rotary body, the center of the liquid distribution chamber being coincident with the rotation central axis of the rotary body;a plurality of filling flow path configuration units arranged about the rotation central axis in the rotary body, each of which has a fluid path constituted by a liquid path connected to the liquid distribution chamber and a liquid valve installed at the liquid path and configured to individually introduce the liquid into a container;a filling control device configured to control the respective liquid valves and control a filling quantity of the liquid with respect to the container;a liquid supply unit installed at a fixing section and configured to supply the liquid into the liquid distribution chamber;a pressure difference information detection unit provided radially outside the liquid distribution chamber, and configured to detect pressure difference information between a liquid distribution chamber pressure, which is a pressure of the liquid in the liquid distribution chamber and which includes a centrifugal force caused by a rotation of the rotary body, and a filling atmospheric pressure detected as a pressure of a flow release unit in the filling flow path configuration unit at an arbitrary radial direction position of the rotary body, anda rotation information detection unit configured to detect rotation information of the rotary body, whereinthe filling control device calculates a flow rate of the liquid flowing out of a liquid outlet of the liquid path based on the detected pressure difference information, rotation information and a previously obtained relationship between the pressure difference information and rotation information and the flow rate of the liquid flowing out of the liquid outlet of the liquid path, and controls a filling quantity of the liquid with respect to the container. 2. A rotary-type filling machine comprising: a rotary body rotatable about a rotation central axis;a liquid distribution chamber that has a cylindrical shape and is configured to store a liquid supplied from an outside of the rotary body, the center of the liquid distribution chamber being coincident with the rotation central axis of the rotary body;a plurality of filling flow path configuration units arranged about the rotation central axis in the rotary body, each of which has a fluid path constituted by a liquid path connected to the liquid distribution chamber and a liquid valve installed at the liquid path and configured to individually introduce the liquid into a container;a filling control device configured to control the respective liquid valves and control a filling quantity of the liquid with respect to the container;a liquid supply unit installed at a fixing section and configured to supply the liquid into the liquid distribution chamber; anda pressure difference information detection unit provided radially outside the liquid distribution chamber, and configured to detect pressure difference information between a liquid distribution chamber pressure, which is a pressure of the liquid in the liquid distribution chamber and which includes a centrifugal force caused by a rotation of the rotary body, and a filling atmospheric pressure of the container detected as a pressure of a flow release unit in the filling flow path configuration unit at substantially the same radial direction position as a liquid outlet of the liquid path of the rotary body, whereinthe filling control device calculates a flow rate of the liquid flowing from the liquid outlet of the liquid path based on the detected pressure difference information and a previously obtained relationship between the pressure difference information and the flow rate of the liquid flowing from the liquid outlet of the liquid path, and controls a filling quantity of the liquid with respect to the container. 3. A rotary-type filling machine comprising: a rotary body rotatable about a rotation central axis;a liquid distribution chamber that has a cylindrical shape and is configured to store a liquid supplied from an outside of the rotary body, the center of the liquid distribution chamber being coincident with the rotation central axis of the rotary body;a plurality of filling flow path configuration units arranged about the rotation central axis in the rotary body, each of which has a fluid path constituted by a liquid path connected to the liquid distribution chamber and a liquid valve installed at the liquid path, a sealing tool configured to seal a filling atmosphere in a container, a return gas path configured to guide a return gas during the filling from the container into a return gas chamber which is pressure-controlled and a return gas valve installed at the return gas path, and configured to individually guide a liquid into the container;a pressurized gas path configured to supply a pressure-controlled gas with respect to the container and a pressurized gas valve installed at the pressurized gas path;a discharge gas path configured to discharge a pressurized gas remaining in the container and the sealing tool upon completion of the filling and a discharge gas valve installed at the discharge gas path;a filling control device configured to control the respective liquid valves and control a filling quantity of the liquid with respect to the container;a liquid supply unit installed at a fixing section and configured to supply the liquid into the liquid distribution chamber;a pressure difference information detection unit provided radially outside the liquid distribution chamber, and configured to detect pressure difference information between a liquid distribution chamber pressure, which is a pressure of the liquid in the liquid distribution chamber and which includes a centrifugal force caused by a rotation of the rotary body, and a return gas chamber pressure of the return gas chamber detected as a pressure of a flow release unit in the filling flow path configuration unit at an arbitrary radial direction position of the rotary body; anda rotation information detection unit configured to detect rotation information of the rotary body, whereinthe filling control device calculates a flow rate of the liquid flowing out of a liquid outlet of the liquid path based on the detected pressure difference information, rotation information and a previously obtained relationship between the pressure difference information and rotation information and the flow rate of the liquid flowing out of the liquid outlet of the liquid path, and controls a filling quantity of the liquid with respect to the container. 4. A rotary-type filling machine comprising: a rotary body rotatable about a rotation central axis;a liquid distribution chamber that has a cylindrical shape and is configured to store a liquid supplied from the outside of the rotary body, the center of the liquid distribution chamber being coincident with the rotation central axis of the rotary body;a plurality of filling flow path configuration units arranged about the rotation central axis in the rotary body, each of which has a fluid path constituted by a liquid path connected to the liquid distribution chamber and a liquid valve installed at the liquid path, a sealing tool configured to seal a filling atmosphere in a container, a return gas path configured to guide a return gas during the filling from the container into a return gas chamber which is pressure-controlled and a return gas valve installed at the return gas path, and configured to individually guide a liquid into the container;a pressurized gas path configured to supply a pressure-controlled gas with respect to the container and a pressurized gas valve installed at the pressurized gas path;a discharge gas path configured to discharge a pressurized gas remaining in the container and the sealing tool upon completion of the filling and a discharge gas valve installed at the discharge gas path;a filling control device configured to control the respective liquid valves and control a filling quantity of the liquid with respect to the container;a liquid supply unit installed at a fixing section and configured to supply the liquid into the liquid distribution chamber; anda pressure difference information detection unit provided radially outside the liquid distribution chamber, and configured to detect pressure difference information between a liquid distribution chamber pressure, which is a pressure of the liquid in the liquid distribution chamber and which includes a centrifugal force caused by a rotation of the rotary body, and a return gas chamber pressure of the return gas chamber detected as a pressure of a flow release unit in the filling flow path configuration unit at substantially the same radial direction position as a liquid outlet of the liquid path of the rotary body, whereinthe filling control device calculates a flow rate of the liquid flowing from the liquid outlet of the liquid path based on the detected pressure difference information and a previously obtained relationship between the pressure difference information and the flow rate of the liquid flowing from the liquid outlet of the liquid path, and controls a filling quantity of the liquid with respect to the container. 5. The rotary-type filling machine according to Claim 1, wherein the liquid distribution chamber is filled with the liquid. 6. The rotary-type filling machine according to Claim 1, wherein a liquid phase by the liquid and a gaseous phase by a gas are formed in the liquid distribution chamber, and a liquid level control unit configured to control a liquid level of the liquid in the liquid distribution chamber is provided between the liquid distribution chamber and the liquid supply unit. 7. The rotary-type filling machine according to Claim 1, wherein the pressure difference information detection unit comprises: a first detection body installed at the liquid distribution chamber and configured to detect the liquid distribution chamber pressure;a second detection body installed at the rotary body spaced apart from the first detection body, and configured to detect a pressure of the flow release unit of the filling flow path configuration unit;a pair of capillary tubes connected to the first detection body and the second detection body, and in which an enclosed liquid is sealed, respectively; anda detector main body configured to output a difference between a pressure transmitted from the first detection body and a pressure transmitted from the second detection body as the pressure difference information via the pair of capillary tubes. 8. The rotary-type filling machine according to Claim 1, wherein the pressure difference information detection unit comprises: a first detection unit installed at the liquid distribution chamber and configured to detect the liquid distribution chamber pressure; anda second detection unit installed at substantially the same radial direction position as the first detection unit and configured to detect a pressure of the flow release unit of the filling flow path configuration unit. 9. A method of calculating a filling quantity for a rotary-type filling machine, wherein the machine includes: a rotary body rotatable about a rotation central axis;a liquid distribution chamber that has a cylindrical shape and is configured to store a liquid supplied from the outside of the rotary body, the center of the liquid distribution chamber being coincident with the rotation central axis of the rotary body;a plurality of filling flow path configuration units arranged about the rotation central axis in the rotary body, each of which has a fluid path constituted by a liquid path connected to the liquid distribution chamber and a liquid valve installed at the liquid path and configured to individually introduce the liquid into a container; anda liquid supply unit installed at a fixing section and configured to supply the liquid into the liquid distribution chamber,the method comprising:an information detecting process of detecting pressure difference information between a pressure of an inlet side of a flow in the filling flow path configuration unit and a pressure of a release side of the flow of a flow release unit side in the filling flow path configuration unit, and rotation information of the rotary body; anda calculating process of obtaining a flow rate of the liquid flowing from a liquid outlet of the liquid path based on the detected pressure difference information and rotation information, a previously obtained relationship between the pressure difference information and rotation information and the flow rate of the liquid flowing from the liquid outlet of the liquid path,wherein the flow rate includes an increased flow rate by a centrifugal force of the rotary body. 10. A method of calculating a filling quantity for a rotary-type filling machine, wherein the machine includes: a rotary body rotatable about a rotation central axis;a liquid distribution chamber that has a cylindrical shape and is configured to store a liquid supplied from an outside of the rotary body, the center of the liquid distribution chamber being coincident with the rotation central axis of the rotary body;a plurality of filling flow path configuration units arranged about the rotation central axis in the rotary body, each of which has a fluid path constituted by a liquid path connected to the liquid distribution chamber and a liquid valve installed at the liquid path and configured to individually introduce the liquid into a container; anda liquid supply unit installed at a fixing section and configured to supply the liquid into the liquid distribution chamber,the method comprising:an information detecting process of detecting pressure difference information between a pressure of an inlet side of a flow in the filling flow path configuration unit and a pressure of a release side of a flow of a flow release unit side in the filling flow path configuration unit at substantially the same radial direction position as an outlet of the liquid path; anda calculating process of obtaining a flow rate of the liquid flowing from a liquid outlet of the liquid path based on the detected pressure difference information, and a previously obtained relationship between the pressure difference information and the flow rate of the liquid flowing from the liquid outlet of the liquid path,wherein the flow rate includes an increased flow rate by a centrifugal force of the rotary body.