Aviation valve with status indicator
AssigneeGce Holding AB
InventorsGareth Pemberton, Petr Jehlicka, Karel Zmek
Life of this patent
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Abstract
The invention relates to a shut-off valve for controlling flow of a pressurised gas. The shut-off valve comprises a body defining a passage extending between a gas inlet channel and a gas outlet channel, and a sealing element arranged to, in a first position, close the passage, and in a second position, open the passage to allow gas to flow between the gas inlet channel and the gas outlet channel through the passage. The invention also relates to a method for controlling flow of a pressurised gas by means of a shut-off valve.
Claims20
A shut-off valve for controlling flow of a pressurised gas, comprising:
- a body defining a passage extending between a gas inlet channel and a gas outlet channel, the gas inlet channel being coaxial with the gas outlet channel, and the passage including a first conduit and a second conduit that each extend transversely to a direction which the gas inlet channel and the gas outlet channel extend;
- a sealing element arranged to, in a first position, close the second conduit, and in a second position, open the second conduit to allow gas to flow from the gas inlet channel to the gas outlet channel through the passage while reversing its flow direction when moving from the first conduit to the second conduit;
- a pin element at least partly arranged in the passage, the pin element including a restrictor at a first end which is in contact with the sealing element;
- and
- a biasing element for biasing a first end of the sealing element such that a second end of the sealing element is in contact with the pin element,
- wherein, the pin element comprises a guide for guiding a gas flow between the gas inlet channel and the gas outlet channel when the sealing element is in the second position, the guide extending in a longitudinal direction of the pin element and being arranged to allow the gas flow to leave the passage in a radial direction of the pin element, and wherein the sealing element and the restrictor both independently seal the second conduit when the sealing element is in the first position.
A shut-off valve for controlling flow of a pressurised gas, comprising:
- a body defining a passage extending between a gas inlet channel and a gas outlet channel, the passage including a first conduit and a second conduit that each extend transversely to a direction which the gas inlet channel and the gas outlet channel extend;
- a sealing element arranged to, in a first position, close the second conduit, and in a second position, open the second conduit to allow a gas flow exiting the first conduit to reverse its flow direction and flow through the second conduit so that the gas flow can flow between the gas inlet channel and the gas outlet channel through the passage;
- a pin element at least partly arranged in the second conduit, the pin element including a restrictor at a first end which is in contact with the sealing element;
- and
- a biasing element for biasing a first end of the sealing element such that a second end of the sealing element is in contact with the pin element,
- wherein, the pin element allows the gas flow to leave the second conduit in a radial direction of the pin element.
Dependencies are inferred from the claim text.