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US 11,598,351 B2Granted
Hydraulic accumulator
AssigneeHydac Technology GmbH
InventorsFrank Bauer, Peter Kloft
Life of this patent
Estimating the term…
Abstract
A hydraulic accumulator, in particular in the form of a piston accumulator, has an accumulator housing (10) and a separating element (20) arranged in the housing. The separating element is in the form of a piston, which separates a fluid side (22) from a gas side (24). At least the gas side (24) can be inspected, at least in part, by at least one sight glass (34, 36) that is fixed in the accumulator housing (10).
Claims18
A hydraulic accumulator, comprising:
- an accumulator housing having a gas chamber and a liquid chamber in the accumulator housing coaxially arranged along a longitudinal axis of the accumulator housing;
- a separating element in the accumulator housing separating the gas chamber from the liquid chamber;
- and
- first and second sight glasses fixedly mounted in the accumulator housing with the first sight glass arranged to supply light to the separating element in the accumulator housing and with the second sight glass arranged to provide direct optical observation by human inspectors of the separating element in the accumulator housing in directions parallel to and laterally offset from the longitudinal axis, each of the first and second sight glasses having an exposed front surface facing an environment outside of the accumulator housing and extending perpendicular to the longitudinal axis.
1 more element
A hydraulic accumulator, comprising:
- an accumulator housing having an end cover and having a gas chamber and a liquid chamber in the accumulator housing coaxially arranged along a longitudinal axis of the accumulator housing, the end cover having a front side and a gas port extending through the end cover;
- a separating element in the accumulator housing separating the gas chamber from the liquid chamber;
- and
- first and second sight glasses fixedly mounted in the end cover of the accumulator housing on the front side of the end cover spaced laterally from the gas port with the first sight glass arranged to supply light to the separating element in the accumulator housing and with the second sight glass arranged to provide direct optical observation by human inspectors of the separating element in the accumulator housing in directions parallel to and laterally offset from the longitudinal axis, each of the first and second sight glasses having an exposed front surface facing an environment outside of the accumulator housing and extending perpendicular to the longitudinal axis.
1 more element
Dependencies are inferred from the claim text.