Vogele Basic Training Hydraulics & Electrics

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H.7.0 Open circuit H.7.7 Accessories Volume flow variable Variable displacement pump Filter PCV Motor HOC Tank The circuit can be supplemented through accessories, such as filters and coolers, etc.
H.8.0 Closed circuit The hydraulic pump is fed with hydraulic fluid returning directly from the actuator (hydraulic motor). The hydraulic fluid is under low pressure of roughly 10 to 30 bar and is raised to a higher pressure level (high pressure) by the hydraulic pump before being fed back to the actuator again. The advantages of this process are high speeds and filtering at a low pressure of just 10 to 20% of the volume of the primary pump. The circuit has high pressure and low pressure sides, which change with the direction of load. The high pressure side is protected by pressure control valves, which relieve the pressure towards the low pressure side. The medium remains in the circuit. Only the leakage at the hydraulic pump and hydraulic motor (depending on operating data) has to be replaced. This is realized by a (usually) directly flange-connected auxiliary pump that permanently feeds a sufficient fluid volume ( feed volume ) from a tank to the low pressure side via a non-return valve. The unneeded volume flow of the feed pump working in the open circuit is returned to the tank via a feed pressure control valve. Volume flow variable Pump, variable Motor, variable
Page 1 and 2: Basic Training Hydraulics & Electri
Page 3 and 4: Table of Contents - Hydraulics H.1.
Page 5 and 6: Basic Principles Hydraulics
Page 7 and 8: H.3.0 Units of measurement in hydra
Page 9 and 10: H.5.0 Circuit symbols and circuits
Page 23 and 24: H.6.0 Circuit diagrams H.6.1 Types
Page 25 and 26: H.6.0 Circuit diagrams H.6.2 Layout
Page 27 and 28: H.6.0 Circuit diagrams H.6.2 Layout
Page 29 and 30: H.6.0 Circuit diagrams H.6.4 Symbol
Page 31 and 32: H.6.0 Circuit diagrams H.6.4 Symbol
Page 33 and 34: H.7.0 Open circuit The hydraulic pu
Page 35 and 36: H.7.0 Open circuit H.7.2 Directiona
Page 37 and 38: H.7.0 Open circuit H.7.4 Flow contr
Page 39: H.7.0 Open circuit H.7.6 Free-wheel
Page 43 and 44: H.8.0 Closed circuit H.8.2 Changing
Page 45 and 46: H.8.0 Closed circuit H.8.4 Leakage
Page 47 and 48: H.8.0 Closed circuit H.8.6 Accessor
Page 49 and 50: H.9.0 Hydraulic pumps Flow directio
Page 51 and 52: H.9.0 Hydraulic pumps H.9.3 Variabl
Page 53 and 54: H.9.0 Hydraulic pumps H.9.3 Variabl
Page 55 and 56: H.10.0 Hydraulic motors Hydraulic m
Page 57 and 58: H.10.3 Variable displacement motor
Page 59 and 60: H.12.0 Oils used at VÖGELE Motor o
Page 61 and 62: H.13.0 Annex H.13.2 Advantages The
Page 63 and 64: H.13.0 Annex H.13.5 Applications On
Page 65 and 66: H.13.0 Annex H.13.5.2 Combustion re
Page 67 and 68: Basic Principles Electrics
Page 69 and 70: E.2.0 Units of measurement in elect
Page 79 and 80: E.3.0 Relationships between units o
Page 81 and 82: E.4.0 Connecting resistors E.4.1.1
Page 83 and 84: E.4.0 Connecting resistors E.4.2.1
Page 85 and 86: E.5.0 Legend of abbreviations: A =
Page 87 and 88: E.6.0 Circuit symbols E.6.2 Symbols
Page 89 and 90: E.6.0 Circuit symbols E.6.4.Symbols
Page 91 and 92:
E.7.0 Relays E.7.2 Relays used at V
Page 93 and 94:
E.8.0 Diodes E.8.2 Conducting direc
Page 95 and 96:
E.9.0 Fuses What is a fuse The weak
Page 97 and 98:
E.10.0 Reading a circuit diagram E.
Page 99 and 100:
E.11.0 Mains systems E.11.2 Mains 2
Page 101 and 102:
E.12.0 Measuring instruments E.12.1
Page 103:
E.12.0 Measuring instruments E.12.2
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