PRESSURE CONTROL UNIT
PROBLEM TO BE SOLVED: To provide a compact and light-weight pressure control unit that controls oil pressure accurately and has improved layout properties. SOLUTION: An oil pressure control unit 14 comprises: a housing 21 having a flow inlet 21a and a flow outlet 21b of oil; a super-magnetostrictive...
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| creator | KOBAYASHI KAZUMITSU |
| description | PROBLEM TO BE SOLVED: To provide a compact and light-weight pressure control unit that controls oil pressure accurately and has improved layout properties. SOLUTION: An oil pressure control unit 14 comprises: a housing 21 having a flow inlet 21a and a flow outlet 21b of oil; a super-magnetostrictive shaft 22 provided in an electronic component storage section 21d in the housing 21; a pressure receiving plate 23 for applying oil pressure to the super-magnetostrictive shaft 22; a sensor coil 24 for detecting the permeability of the super-magnetostrictive shaft 22, changing according to the oil pressure; an actuator coil 25 for expanding and contracting the super-magnetostrictive shaft 22 by applying a magnetic field with respect to the super-magnetostrictive shaft 22; and a needle valve 26 in linking with the expansion and contraction of the super-magnetostrictive shaft. The super-magnetostrictive shaft 22 has permeability changed, when stress is applied from the outside, and a ratio of magnetostriction is changed, by applying magnetic field from the outside, so that the super-magnetostrictive shaft is used as an actuator for driving the pressure sensor and the valve. COPYRIGHT: (C)2007,JPO&INPIT |
| format | Patent |
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SOLUTION: An oil pressure control unit 14 comprises: a housing 21 having a flow inlet 21a and a flow outlet 21b of oil; a super-magnetostrictive shaft 22 provided in an electronic component storage section 21d in the housing 21; a pressure receiving plate 23 for applying oil pressure to the super-magnetostrictive shaft 22; a sensor coil 24 for detecting the permeability of the super-magnetostrictive shaft 22, changing according to the oil pressure; an actuator coil 25 for expanding and contracting the super-magnetostrictive shaft 22 by applying a magnetic field with respect to the super-magnetostrictive shaft 22; and a needle valve 26 in linking with the expansion and contraction of the super-magnetostrictive shaft. The super-magnetostrictive shaft 22 has permeability changed, when stress is applied from the outside, and a ratio of magnetostriction is changed, by applying magnetic field from the outside, so that the super-magnetostrictive shaft is used as an actuator for driving the pressure sensor and the valve. 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SOLUTION: An oil pressure control unit 14 comprises: a housing 21 having a flow inlet 21a and a flow outlet 21b of oil; a super-magnetostrictive shaft 22 provided in an electronic component storage section 21d in the housing 21; a pressure receiving plate 23 for applying oil pressure to the super-magnetostrictive shaft 22; a sensor coil 24 for detecting the permeability of the super-magnetostrictive shaft 22, changing according to the oil pressure; an actuator coil 25 for expanding and contracting the super-magnetostrictive shaft 22 by applying a magnetic field with respect to the super-magnetostrictive shaft 22; and a needle valve 26 in linking with the expansion and contraction of the super-magnetostrictive shaft. The super-magnetostrictive shaft 22 has permeability changed, when stress is applied from the outside, and a ratio of magnetostriction is changed, by applying magnetic field from the outside, so that the super-magnetostrictive shaft is used as an actuator for driving the pressure sensor and the valve. 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SOLUTION: An oil pressure control unit 14 comprises: a housing 21 having a flow inlet 21a and a flow outlet 21b of oil; a super-magnetostrictive shaft 22 provided in an electronic component storage section 21d in the housing 21; a pressure receiving plate 23 for applying oil pressure to the super-magnetostrictive shaft 22; a sensor coil 24 for detecting the permeability of the super-magnetostrictive shaft 22, changing according to the oil pressure; an actuator coil 25 for expanding and contracting the super-magnetostrictive shaft 22 by applying a magnetic field with respect to the super-magnetostrictive shaft 22; and a needle valve 26 in linking with the expansion and contraction of the super-magnetostrictive shaft. The super-magnetostrictive shaft 22 has permeability changed, when stress is applied from the outside, and a ratio of magnetostriction is changed, by applying magnetic field from the outside, so that the super-magnetostrictive shaft is used as an actuator for driving the pressure sensor and the valve. COPYRIGHT: (C)2007,JPO&INPIT</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | ACTUATING-FLOATS BLASTING COCKS CONTROLLING DEVICES FOR VENTING OR AERATING ELECTRICITY ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MEASURING MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE MECHANICAL ENGINEERING PHYSICS REGULATING SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES TAPS TESTING THERMAL INSULATION IN GENERAL VALVES WEAPONS |
| title | PRESSURE CONTROL UNIT |
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