Steer valve with hydraulic vehicle position feedback
A fluid controller (17) controls a main fluid path (18) from a pump (11) to a primary steering cylinder (19) and a second fluid path (26) from a fluid meter (37) to a second cylinder (31). A mechanical or electrical linkage (149) couples the primary steering cylinder (19) to the second cylinder (31)...
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Format: | Patent |
Sprache: | eng |
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Zusammenfassung: | A fluid controller (17) controls a main fluid path (18) from a pump (11) to a primary steering cylinder (19) and a second fluid path (26) from a fluid meter (37) to a second cylinder (31). A mechanical or electrical linkage (149) couples the primary steering cylinder (19) to the second cylinder (31) such that displacement of the primary cylinder (19) results in proportional corresponding displacement of the second cylinder (31). The main fluid path (18) and the second fluid path (26) are maintained separate from each other. As such, the main fluid path (18) provides pressurized fluid from the pump to the primary steering cylinder (19) without communicating main fluid flow to the secondary cylinder (31). Due to the separate fluid paths, the present invention can be used to provide a substantial amount of fluid through a fluid controller (17) with a relatively small displacement fluid meter (37). |
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