Device and method for generating vacuum for vacuum cementing systems

摘要

A device is provided for generating a vacuum for a vacuum cementing device, the device including a channel and a connector for a gas cartridge. The connector has an opener for opening the gas cartridge, and connects the gas cartridge to the channel in a pressure-tight manner, such that gas from the opened gas cartridge flows along the channel to the surroundings of the device. The channel includes at least one T-piece, provided as Venturi nozzle, having a vacuum connector for the vacuum cementing device, such that gas from the opened gas cartridge flowing through the channel generates a negative pressure at the vacuum connector. A method is also provided including steps of opening a gas cartridge, flowing gas from the gas cartridge through a Venturi nozzle, whereby by a negative pressure is generated, and applying the negative pressure to a vacuum cementing system.

主权项

1. A device for generating a vacuum for a vacuum cementing device, the device comprising a channel and a connector for a gas cartridge, the connector comprising an opener for opening the gas cartridge, wherein the gas cartridge is connectable by the connector to the channel in a pressure-tight manner, such that a gas from the opened gas cartridge flows along the channel, wherein the channel connects the connector to surroundings of the device, wherein the channel comprises at least one T-piece forming a Venturi nozzle defined by a tapered portion of the channel and a vacuum connector extending transversely directly from the tapered portion for connecting to the vacuum cementing device, such that the gas from the opened gas cartridge flowing through the channel generates a negative pressure at the vacuum connector, the vacuum connector including a non-return valve therein, the non-return valve being opened when the negative pressure is generated.