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US 12,768,694 B2Granted
Device for measuring a flow rate of a liquid
AssigneeDana Italia S.R.L.
InventorsMatteo Stefani, Alessandro Sassi
Life of this patent
Estimating the term…
Abstract
The present disclosure relates to a device for measuring a flow rate of a liquid, comprising a flow channel, a valve for selectively opening and closing the flow channel, and a measuring unit configured to determine, after the valve has closed the flow channel, a time Δt which it takes a liquid fed to the flow channel above the valve to rise to an upper predetermined liquid level in the flow channel.
Claims15
A device for measuring a flow rate of a liquid, comprising:
- a flow channel,
- a valve for selectively opening and closing the flow channel, and
- a measuring unit configured to determine, after the valve has closed the flow channel, a time Δt which it takes a liquid fed to the flow channel above the valve to rise to an upper predetermined liquid level in the flow channel;
- wherein the flow channel comprises an upper section including the upper predetermined liquid level and an intermediate section extending between the valve and the upper section, wherein a maximum cross sectional area in the upper section is smaller than a minimum cross sectional area in the intermediate section.
1 more element
A device for measuring a flow rate of a liquid, comprising:
- a flow channel,
- a valve for selectively opening and closing the flow channel,
- a measuring unit configured to determine, after the valve has closed the flow channel, a time Δt which it takes a liquid fed to the flow channel above the valve to rise to an upper predetermined liquid level in the flow channel;
- wherein the measuring unit comprises an upper liquid level detection device configured to determine if a liquid level in the flow channel has reached the upper predetermined liquid level, and
- wherein the measuring unit comprises a lower liquid level detection device configured to determine if a liquid level in the flow channel has reached a lower predetermined liquid level disposed in between the valve and the upper predetermined liquid level, and
- an assembly disposed at least partially in the flow channel and configured to change a volume of the flow channel in between the valve and the upper predetermined liquid level, or in between the lower predetermined liquid level and the upper predetermined liquid level.
3 more elements
Dependencies are inferred from the claim text.