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AssigneeEdwards Limited
InventorsPeter David Jones, Daniel Suarez Arias, Nicolas Jonathan Grant, James Alexander Haylock
Estimating the term…
A positive displacement vacuum pump and a method of controlling such a pump to reduce power consumption of the pump during a standby mode. The method comprises: operating the pump by driving a pumping mechanism at a nominal speed; determining that the pump is to enter a standby mode in which an exhaust non-return valve is closed; boosting a speed of the pumping mechanism for a predetermined time to reduce an amount of gas within the pump; and reducing the speed of the pumping mechanism and operating the pump in the standby mode with the exhaust non-return valve being closed.
A method of controlling a mechanical vacuum pump to reduce power consumption of said pump during a standby mode, said method comprising:
A method according to any preceding claim, wherein said step of determining that said pump is to enter a standby mode comprises at least one of:
A method according to any preceding claim, wherein said method comprises a further step performed during said standby mode of:
A method according to any preceding claim, wherein said mechanical vacuum pump comprises one of a positive displacement pump or regenerative pump.
A computer program comprising computer readable instructions which when executed by a processor in a controller of a mechanical vacuum pump is configured to control said pump to perform a method according to any preceding claim.
A controller for a mechanical vacuum pump, said controller comprising:
Dependencies are inferred from the claim text.