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公开(公告)号：US3561573A
公开(公告)日：1971-02-09
申请号：US3561573D
申请日：1968-12-09
Applicant: WESTINGHOUSE ELECTRIC CORP
Inventor： ALLEN LAIRD R JR
CPC classification number: F16D65/28 , B60T17/22 , F16D55/00 , F16D65/74 , F16D2121/14 , F16D2121/20 , F16D2125/10
Abstract: A compact electrohydraulic brake control system in which a reservoir of brake fluid is employed to compensate for brake shoe wear and for brake fluid leakage. In addition, an electric recycling circuit provides a means for compensating for fluid leakage, and a check valve arrangement prevents the hydraulic system from becoming air bound even when the fluid containing parts thereof are above the fluid level in the reservoir.
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2.发明授权
公开(公告)号：US3660625A
公开(公告)日：1972-05-02
申请号：US3660625D
申请日：1970-01-23
Applicant: WESTINGHOUSE ELECTRIC CORP
Inventor： ALLEN LAIRD R JR
CPC classification number: F15C1/04 , H01H33/34 , H01H33/44 , Y10S200/05 , Y10T137/2191
Abstract: A fluid amplifier is utilized to operate the secondary or synchronous contacts of a circuit breaker having main or nonsynchronous contacts and secondary or synchronous contacts, which are connected in parallel-circuit relation when the breaker is closed. The operation of the fluid amplifier is controlled by repulsion coil actuated valves. The energization of the repulsion coils is so controlled by current responsive means and by a synchronous control device that the secondary contacts are opened just prior to a current zero after the opening of the main contacts of the breaker. Compressed gas stored in an accumulator supplies energy for open-reclose-open-reclose operation of the secondary contacts if necessary.
Abstract translation: 流体放大器用于操作具有主或非同步触点和次级或同步触点的断路器的次级或同步触点，当断路器闭合时，它们以并联电路关系连接。 流体放大器的操作由排斥线圈致动阀控制。 排斥线圈的通电由电流响应装置和同步控制装置控制，在断路器的主触点断开之后，次级触点恰好在电流零点之前打开。 存储在蓄能器中的压缩气体在必要时为二次触点的再次闭合 - 再次闭合操作提供能量。
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公开(公告)号：US3492013A
公开(公告)日：1970-01-27
申请号：US3492013D
申请日：1967-05-25
Applicant: WESTINGHOUSE ELECTRIC CORP
Inventor： ALLEN LAIRD R JR , OSBON WILLIAM O
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