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US 5,599,100 AGranted
Multi-phase fluids for a hydraulic system
AssigneeMobil Oil Corporation
InventorsAndrew Jackson, Brian K. Peterson
Life of this patent
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Abstract
A hydraulic system employing multi-phase hydraulic fluids in which a first phase hydraulic fluid has its properties modified by the addition of a second phase hydraulic fluid is described. Effective hydraulic actuation is achieved in a single system under extreme conditions, typically high and low temperatures.
Claims13
A hydraulic system in which hydraulic actuation is applied to move at least one part of a system by a circulating hydraulic fluid, comprising:
- a) an at least partial immiscibility zone which contains a first hydraulic fluid and a second hydraulic fluid under a condition sufficient for at least partial immiscibility of the first and second hydraulic fluids, the second hydraulic fluid is at least partially miscible with the first hydraulic fluid under a condition suitable for at least partial miscibility and under this miscibility condition the second hydraulic fluid changes a physical property of the first hydraulic fluid;
- b) at least one hydraulic actuator for providing hydraulic force to the part of the system;
- c) a mixing zone associated with the at least partial immiscibility zone, the mixing zone for containing the first and second hydraulic fluids which are in a state of at least partial miscibility when there is a condition for at least partial miscibility;
- and
- d) at least one pump for transferring the first and second hydraulic fluids which are in a state of at least partial miscibility from the mixing zone to the hydraulic actuator when a condition suitable for miscibility occurs.
2 more elements
Dependencies are inferred from the claim text.