Load resolver

Details Load resolver Load resolver

1979-11-08

1981-02-10

Nilson, Robert G.

Fluid handling

Self-proportioning or correlating systems

Self-controlled branched flow systems

60420, 60452, 251367, F15B 1116, F15C 306

Patent

active

042495571

ABSTRACT:
PCT No. PCT/US79/00968 Sec. 371 Date Nov. 8, 1979 Sec. 102(e) Date Nov. 8, 1979, PCT Filed Nov. 8, 1979
An improved load resolver (41) is provided of the type which receives a pair of generally unequal pressure signals (32, 34), and which resolves the pair of pressure signals (32, 34) by blocking the lesser and transmitting the greater. Each pressure signal (32, 34) is sent to the load resolver (41) by a respective control valve (18, 20) in a hydraulic system (10). Prior load resolver structures have required angled or intersecting holes therein or special porting therearound. The improved load resolver (41) comprises a first member (58) having a first, axially extending hole (64) and a second member (72) having second and third axially extending holes (78, 104). The members (58, 72) are fitted within a bore (48) of a control valve body (19). The improved load resolver may be utilized in a load resolver system (114) having stackable control valve bodies (17, 19, 21) without the need of special porting therebetween.

REFERENCES:
patent: 2778316 (1957-01-01), Haight
patent: 3407833 (1968-10-01), Brandenberg
patent: 3437065 (1969-04-01), Robbins
patent: 3447556 (1969-06-01), Howeth
patent: 3592216 (1971-07-01), McMillen
patent: 3881513 (1975-05-01), Chang
patent: 4174614 (1979-11-01), Dezelan

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