公开(公告)号：US20180094628A1

公开(公告)日：2018-04-05

申请号：US15720082

申请日：2017-09-29

Applicant: NARDI COMPRESSORI S.R.L.

Inventor： Marco GHIOTTO

IPC: F04B49/22 ,  F04B37/12 ,  F04B37/18 ,  F04B51/00 ,  F04B49/12 ,  F04B49/06 ,  F17C5/06 ,  G05D11/13

CPC classification number: F04B49/225 ,  F04B25/00 ,  F04B37/12 ,  F04B37/18 ,  F04B49/06 ,  F04B49/12 ,  F04B51/00 ,  F17C5/06 ,  F17C2201/0119 ,  F17C2201/056 ,  F17C2221/031 ,  F17C2223/0123 ,  F17C2225/0123 ,  F17C2225/036 ,  F17C2250/032 ,  F17C2250/0452 ,  F17C2250/0647 ,  F17C2265/025 ,  F17C2270/025 ,  F17C2270/0781 ,  G05D11/138 ,  G05D11/139 ,  Y10T137/2509

Abstract: An apparatus for feeding gas mixtures to a compressor comprising a tubular mixing pipe connected with the compressor intake, first and second gas intake devices injecting into the mixing pipe gas received from a Helium source and an Oxygen source respectively, two sensors measuring the Oxygen percentage of the gas mixture, a first servo-controlled throttling valve interposed between the first gas intake device and the Helium source, a second servo-controlled throttling valve interposed between the second gas intake device and the Oxygen source, and a control unit configured to manage the throttling valves depending on the Oxygen percentages of the gas mixture measured by the sensors. The apparatus includes first and second auxiliary pressure regulators, electrically connected with the control unit, interposed respectively between the first servo-controlled valve and a manual regulator of the Helium source and between the second servo-controlled valve and a manual regulator of the Oxygen source.

公开(公告)号：US20240309997A1

公开(公告)日：2024-09-19

申请号：US18605883

申请日：2024-03-15

Applicant: Nardi Compressori S.R.L.

Inventor： Marco GHIOTTO

IPC: F17C5/06

CPC classification number: F17C5/06 ,  F17C2221/031 ,  F17C2227/0157 ,  F17C2270/025

Abstract: Nitrox-mixtures production machine comprising: a molecular separator, which is structured so as to receive at inlet a flow of air and to provide at outlet an intermediate Nitrox mixture with high oxygen percentage; a low-pressure compressor, which is adapted to feed an airflow at inlet of the molecular separator; a mixing manifold, which communicates with the molecular separator so as to receive said intermediate Nitrox mixture, and is structured so as to mix the intermediate Nitrox mixture with fresh air coming from the outside, in order to provide at outlet a final Nitrox mixture with predefined composition; at least one oxygen sensor, which is adapted to measure the oxygen percentage present in said final Nitrox mixture; and an electronic control device, which is connected to said at least one oxygen sensor and is adapted to regulate the flowrate of the airflow that the low-pressure compressor feeds at inlet of the molecular separator based on the signals coming from said at least one oxygen sensor.

公开(公告)号：US20240309996A1

公开(公告)日：2024-09-19

申请号：US18605885

申请日：2024-03-15

Applicant: Nardi Compressori S.R.L.

Inventor： Marco GHIOTTO

IPC: F17C5/00 ,  F17C5/06

CPC classification number: F17C5/007 ,  F17C5/06 ,  F17C2221/031 ,  F17C2227/0157 ,  F17C2227/048 ,  F17C2250/032 ,  F17C2250/043 ,  F17C2250/0452 ,  F17C2250/0636 ,  F17C2265/015 ,  F17C2270/0781

Abstract: Nitrox-mixtures production machine comprising: a molecular separator, which is structured so as to receive at inlet a flow of air and to provide at outlet an intermediate Nitrox mixture with high oxygen percentage; a low-pressure compressor, which is adapted to feed an airflow at inlet of the molecular separator; a mixing manifold, which communicates with the molecular separator so as to receive said intermediate Nitrox mixture, and is structured so as to mix the intermediate Nitrox mixture with fresh air coming from the outside, in order to provide at outlet a final Nitrox mixture with predefined composition; at least one oxygen sensor, which is adapted to measure the oxygen percentage present in said final Nitrox mixture; at least one pressure sensor, which is adapted to measure the air pressure in the molecular separator; and an electronic control device, which is connected to said at least one oxygen sensor and is adapted to regulate the flowrate of the airflow that is sucked in by the low-pressure compressor based on the signals coming from said at least one oxygen sensor and said at least one pressure sensor.