Pneumatic unit for a hydropneumatic pressure booster
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United States of America Patent
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Jun 9, 2020
Grant Date -
Nov 29, 2018
app pub date -
May 29, 2018
filing date -
May 29, 2017
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A pneumatic unit for a hydropneumatic pressure booster has a system line that leads from a compressed air inlet to a compressed air outlet. A bypass line runs parallel to the system line and it is connected to the system line via first and second compressed air switches. A compressed air reservoir is connected in the bypass line, and a pressure intensifier is connected in the region between the first compressed air switch and the compressed air reservoir. The pneumatic unit makes available to the pressure booster a sufficiently high pneumatic pressure for carrying out at least one operational step of a connected hydraulic tool, even in the case of a pressure decrease or pressure failure in the supplying pneumatic line. For that purpose, the second compressed air switch is configured for switching the compressed air flow between the system line and the bypass line.
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