公开(公告)号：WO1985003744A1

公开(公告)日：1985-08-29

申请号：PCT/US1984000581

申请日：1984-04-13

Applicant: CATERPILLAR TRACTOR CO.

Inventor： CATERPILLAR TRACTOR CO. ,  BUDZICH, Tadeusz

IPC: F04B17/00

CPC classification number: F04B49/20 ,  E02F9/2225 ,  F15B11/055 ,  F15B2211/20538 ,  F15B2211/275 ,  F15B2211/50536 ,  F15B2211/513 ,  F15B2211/5157 ,  F15B2211/5158 ,  F15B2211/528 ,  F15B2211/57 ,  F15B2211/634 ,  F15B2211/6651

Abstract: A load responsive fluid power and control system in which the speed of the prime mover (15), driving a fixed displacement pump (11), is varied to maintain a constant pressure differential between pump discharge pressure and maximum system load pressure, above a certain predetermined system flow level and in which this constant pressure differential is maintained by pump flow bypass control (36, 10), at system flows below this predetermined level.

公开(公告)号：WO1985005155A1

公开(公告)日：1985-11-21

申请号：PCT/US1984001072

申请日：1984-07-30

Applicant: CATERPILLAR TRACTOR CO.

Inventor： CATERPILLAR TRACTOR CO. ,  BUDZICH, Tadeusz

IPC: F15B13/06

CPC classification number: F15B11/055 ,  E02F9/2225

Abstract: A load responsive valve (10) capable of limiting, by the throttling action of its positive load compensator (40), the maximum pressure developed in the actuator (11) it controls to a specific preselected pressure level, while transmitting a load pressure signal, limited to specific maximum level, to the load responsive control (14) of the system pump (12).

Abstract translation: 一种负载响应阀（10），其能够通过其正负载补偿器（40）的节流作用来限制在致动器（11）中产生的最大压力，其控制到特定的预选压力水平，同时传送负载压力信号， 限制到特定的最大水平，到系统泵（12）的负载响应控制（14）。