Valve with reversible valve seat for high-pressure pump (HP)
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United States of America Patent
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Sep 12, 2006
Grant Date -
Jun 2, 2005
app pub date -
Jul 27, 2004
filing date -
Jul 28, 2003
priority date (Note) -
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Abstract
High-pressure valve for high-pressure pump, which has a valve body with inlet and outlet, the cylinder chamber of the pump piston rod being connected to the said valve body. The inlet communicates with the cylinder chamber via a bore which houses a first valve seat with a valve ball. Moreover, the cylinder chamber is connected via a further bore with the outlet, said bore housing a valve seat with its valve ball. This device is characterised in that each valve seat with its valve ball is designed as ball check valve and thus forms an assembly. These ball check valves are removable from the valve body, the link between valve and valve body preferably being designed as single or multiple bolting. An ideal embodiment of the invention provides for ball check valves with external male threading and for a female threading in the recess accommodating the check valves.
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