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�ŷ��� servo-valve ��ͨ�� four-way valve ���쵲�� nozzle flapper Һѹ�Ŵ��� hydraulic amplifier ���� dither ������ valve polarity �������� flow gain �Գƶ� symmetry �������� flow limit ��λ��й nullquiescent leakage �ڸ� lap ���ڸ� zero lap ���ڸ� over lap ���ڸ� under lap ���� opening ��ƫ null bias ��Ư null drift ��ѹ�� valve pressure drop �ֱ��� resolution Ƶ����Ӧ frequency response ��ֵ�� amplitude ratio ��λ�� phase lag ���ݺ��� transfer function �� flow line Ӳ�� rigid tube ��� flexible hose ������ working line ���� return line ��Һ�� replenishing line ���ƹ� pilot line й�� drain line ������ bleed line ���崫�� hydraulic power Һѹ���� hydraulics Һ������ hydrodynamics ��Һ���� hydropneumatics Ч�� efficiency ��ת���� direction of rotation ����ѹ�� nominal pressure ����ѹ�� working pressure ����ѹ�� inlet pressure ����ѹ�� outlet pressure ѹ�� pressure drop��differential pressure ��ѹ back pressure ���ѹ�� breakout pressure ����ѹ�� charge pressure ����ѹ�� cracking pressure ��ֵѹ�� peak pressure ����ѹ�� operating pressure ��ѹ����ѹ�� proof pressure ���ѹ�� surge pressure ��ѹ�� static pressure ϵͳѹ�� system pressure ����ѹ�� pilot pressure ����ѹ�� pre-charge pressure ����ѹ�� suction pressure ��ѹƫ�� override pressure �ѹ�� rated pressure ������ air consumption й leakage ��й internal leakage ��й external leakage ���� laminar flow ���� turbulent flow ��Ѩ cavitation ���� flow rate ���й��� operating conditions ����� rated conditions ������ limited conditions ˲̬���� instantaneous conditions ��̬���� steady-state conditions ������ acceptable conditions �������� continuous working conditions ʵ�ʹ��� actual conditions ���� displacement ����� rated flow �������� supply flow ����ϵ�� flower factor �ͻ� hysteresis ͼ�η��� graphical symbol Һѹ����Ԫ��ͼ�η��� symbols for hydraulic and pneumatic components ������Ԫ��ͼ�η��� symbols for fluid logic devices ������ͼ�η��� symbols for logic functions ��ͼ circuit diagram ѹ����ʱ��ͼ pressure time diagram ����ͼ function diagram ѭ�� circle �Զ�ѭ�� automatic cycle ����ѭ�� working cycle ѭ���ٶ� cycling speed ���� phase ֹͣ���� dwell phase �������� working phase ������� rapid advance phase ���˹��� rapid return phase Ƶ����Ӧ frequency response �ظ��� repeat ability ������ reproducibility Ư�� drift ���� ripple ���Զ� linearity ������ linear region Һѹ���� hydraulic lock Һѹ���� sticking ������ variable displacement pump �Ŀ��� control of pump ���ֱ� gear pump ҶƬ�� vane pump ������ piston pump ���������� axial piston pump ������װ flange mounting ������װ foot mounting Һѹ��� hydraulic motor �ն� stiffness ��λ neutral position ��λ zero position ����λ free position �� cylinder �и˶� rod end �˶� rear end �����г� extend stroke �����г� retract stroke ���� cushioning �����г� working stroke ����ѹ�� induced pressure ����� force ʵ������� actual force ������ single-acting cylinder ˫���� double-acting cylinder ��� differential cylinder ������ telescopic cylinder �� valve �װ� sub-plate ���� manifold block ��ʽ�� sub-plate valve ���ӷ� sandwich valve ��װ�� cartridge valve ���� slide valve �� poppet valve ��о valve element ��оλ�� valve element position ���� check valve Һ�ص��� pilot-controlled check valve �� shuttle valve ѹ�����Ʒ� pressure relief valve ������ pressure relief valve ˳�� sequence valve ��ѹ�� pressure reducing valve ƽ�ⷧ counterbalance valve ж�ɷ� unloading valve ֱ��ʽ directly operated type �ȵ�ʽ pilot-operated type ��е����ʽ mechanically controlled type �ֶ�ʽ manually operated type Һ��ʽ hydraulic controlled type �������Ʒ� flow control valve �̶������� fixed restrictive valve �ɵ������� adjustable restrictive valve ��������� one-way restrictive valve ���ٷ� speed regulator valve ������ flow divider valve ������ flow-combining valve ��ֹ�� shut-off valve �� globalball valve �뷧 needle valve բ�� gate valve ĤƬ�� diaphragm valve ���� butterfly valve �����ȼ�noise level �Ŵ��� amplifier ģ��Ŵ��� analogue amplifier ���ַŴ��� digital amplifier ������ sensor ��ֵ threshold ��ͷ fitting��connection ����ʽ��ͷ welded fitting ����ʽ��ͷ flared fitting �컻��ͷ quick release coupling ������ͷ flange connection ��ͷ elbow �쾶��ͷ reducer fitting ���� flow pass �Ϳ� port ��ʽ���� sealed reservoir �������� reservoir fluid capacity ����ʽ������bladder accumulator ������Ⱦ air contamination ���������Ⱦ solid contamination Һ����Ⱦ liquid contamination ���������� air filter ������ lubricator �Ƚ����� heat exchanger ��ȴ�� cooler ������ heater �ȿ����� thermostat ������ silencer ˫Ͳ������ duplex filter ������ѹ�� filter pressure drop ��Ч������� effective filtration area ���ƹ��˾��� nominal filtration rating ѹ��ѹ�� collapse pressure �����ܷ� packing seal ��е�ܷ� mechanical seal �����ܷ� radial seal ��ת�ܷ� rotary seal �����ܷ� piston seal �������ܷ� rod seal ����Ȧ�ܷ� wiper seal��scraper ��ϵ�Ȧ bonded washer �����ܷ�� composite seal �����ܷ�� elastomer seal ������ nitrile butadiene rubber��NBR ���ķ���ϩ polytetrafluoroethene��PTFE ���ȿ��� override control ѹ���� pressure gauge ѹ�������� electrical pressure transducer ѹ��� differential pressure instrument Һλ�� liquid level measuring instrument ������ flow meter ѹ������ pressure switch ���巢���� pulse generator Һѹ��վ power station ���������Ԫ air conditioner unit ѹ�����ƻ� pressure control circuit ��ȫ�� safety circuit ��� differential circuit ���ٻ� flow control circuit ���ڽ����� meter-in circuit ���ڽ����� meter-out circuit ͬ���� synchronizing circuit ��ʽ�� open circuit ��ʽ�� closed circuit ������ pipe-work �ܿ� clamper ������ drive shaft coupling ����̨ control console ������ control panel ����� compensator ճ�� viscosity �˶�ճ�� kinematic viscosity �ܶ� density ��ˮ�� water content ���� flash point ������ rust protection ����ʴ�� anti-corrosive quality ��Яʽ��������� portable particle counter ��ŷ� Solenoid valve ���� Check valve ��װ�� Cartridge valve ���ӷ� Sandwich plate valve �ȵ��� Pilot valve Һ�ص��� Pilot operated check valve ��ʽ��װ Sub-plate mount ���ɿ� Manifold block ѹ�������� Pressure relief valve ������ Flow valve ������ Throttle valve ˫��������� Double throttle check valve ��ť Rotary knob ������ Rectifier plate �ŷ��� Servo valve ������ Proportional valve λ����Position feedback �������� Progressive flow ������ͷ� De-energizing of solenoid ���������� ���������Phosphate ester HFD-R ˮ-�Ҷ���Water-glycol HFC �黯Һ Emulsion ��ʴ�� Inhibitor �ϳ��� Synthetic lubricating oil ����Һѹ��װ���� ��Ⱦ Contamination �ཬ Grout ʧЧ Failure �㶯 Jog ���� Creep Ħ�� Abrasion ���������Retract ����������Extension ���� Malfunction ��ϴ Pickling ��ϴing ��ʽ��ϴ Dipping process ѭ�� Re-circulation �ۻ�Passivity ������ Nitric acid ���Argon �ԽӺ�Butt welding �ܺ�Socket welding �������庸 Inert gas welding �ġ��ܽ�ͷ Bite type fittings ����ʽ�ܽ�ͷ Tube to tube fittings�ӹܽ�ͷ union ֱͨ�ӹܽ�ͷ union elbow ֱ�ǹܽ�ͷ union tee ��ͨ�ܽ�ͷ union cross ��ͨ�ܽ�ͷ Mal stud fittings ��ֱͨ�ܽ�ͷ Bulkhead fittings ��ֱͨ�ܽ�ͷ Weld fittings ����ʽ�ܽ�ͷ Female connector fittings ��ͷ��ĸ Reducers extenders �侶�ܽ�ͷ Banjo fittings ��ʽ�ܽ�ͷ Adjustable fittings/swivel nut ��ת��ͷ �塢�ŷ������ŷ�ϵͳ���ܲ��� Dynamic response ��̬Ƶ�� DDV-direct drive valve ֱ��ʽ�ŷ��� NFPA-National Fluid Power Association �����������ѧ�� Phase lag ��λ�ͺ� Nozzle flapper valve ���쵲�巧 Servo-jet pilot valve �����ܷ� Dither ������� Coil impedance ��Ȧ�迹 Flow saturation �������� Linearity ���ζ� Symmetry �Գ��� Hysterics �ͻ� Threshold ����� Lap �ͺ� Pressure gain ѹ������ Null ��λ Null bias ��ƫ Null shift ��Ʈ Frequency response Ƶ����Ӧ Slope ����б�� Һѹϵͳhydraulic system ִ��Ԫ��actuator Һѹ��cylinder Һѹ���motor Һѹ��circuit ѹ�����ƻ�pressure control �����ٶ����ƻ�speed control ������ƻ�directional valve control ��ȫ��security control ��λ��position control ͬ����synchronise circuit ˳������sequeunt circuit Һѹ��pump ��valve ѹ�����Ʒ�pressure valve �������Ʒ�flow valve ������Ʒ�directional valve Һѹ����accessory ��ͨ��common valve ��װ��cartridge valve ���ӷ�superimposed valve �������ӣ��й����������� http//
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