Chapter 7 Basic Hydraulic Circuits 7.1.4 Pressure-increasing circuits 1.A pressure-increasing circuits by a single action pressure-increasing 2 Play P2=P1A1/A DVD 卓 Play DVD a) b) Fig.7-4 a)Single action pressure-increasing circuit b)Bi-action pressure-increasing circuit 11 Homepage List Upward达s Downwards Retum Exit
Chapter 7 Basic Hydraulic Circuits 11 7.1.4 Pressure-increasing circuits Fig.7-4 a)Single action pressure-increasing circuit b) Bi-action pressure-increasing circuit 1. A pressure-increasing circuits by a single action pressure-increasing a) b)
Chapter 7 Basic Hydraulic Circuits 2.A pressure-increasing circuit by a tandem circuit As shown in Fig.7-4b. 12 Homepage List Upwards Downwards Retun Exit
Chapter 7 Basic Hydraulic Circuits 12 2. A pressure-increasing circuit by a tandem circuit As shown in Fig.7-4b
Chapter 7 Basic Hydraulie Cireuits 7.1.5 Pressure counterbalance circuits 1.Counter-balance circuits done by a combined of check-sequence valve a) DVD b) Play DVD ☒仪 YW☒K ☒兴✉ c) Play DVD 6 Fig.7-5 a)Counter-balance circuits done by a combined of check-sequence valve b)Counter-balance circuits done by a hydraulic-operated check valve c)Counter-balance circuits done by a hydraulic -operated sequence valve 13 Homepage List Upwards Downwards Retumn Exit
Chapter 7 Basic Hydraulic Circuits 13 1. Counter-balance circuits done by a combined of check-sequence valve 7.1.5 Pressure counterbalance circuits a) b) c) Fig.7-5 a) Counter-balance circuits done by a combined of check- sequence valve b) Counter-balance circuits done by a hydraulic－operated check valve c) Counter-balance circuits done by a hydraulic -operated sequence valve
Chapter 7 Basic Hydraulic Circuits 2.Counter control-balance circuits done by a hydraulic control-operated check valve As shown in fig.7-5b. 3.Counter control-balance circuits done by a hydraulic-operated sequence valve As shown in fig.7-5c. 14 Homepage List Upwards Downwards Retun Exit
Chapter 7 Basic Hydraulic Circuits 14 2. Counter control-balance circuits done by a hydraulic control-operated check valve 3. Counter control-balance circuits done by a hydraulic-operated sequence valve As shown in fig.7-5b. As shown in fig.7-5c
Chapter 7 Basic Hydraulic Circuits 7.1.6 Pressure-holding circuits 1.A pressure-holding circuit by the electric-contact pressure switch To feed cylinde Play 肉 DVD ☒ 6 0驱 Fig.7-6a A pressure-holding circuit by the pressure-relay Play Dy吧 b) Fig.7-6b A pressure-holding 名 circuit by the accumulator Play 吧 Fig.7-6c A pressure-holding circuit by the auxiliary pump 15 Homepage List Upwards Downwards Retumn Exit
Chapter 7 Basic Hydraulic Circuits 15 7.1.6 Pressure-holding circuits 1. A pressure-holding circuit by the electric-contact pressure switch Fig.7-6a A pressure-holding circuit by the pressure-relay Fig.7-6b Apressure-holding circuit by the accumulator Fig.7-6c A pressure-holding circuit by the auxiliary pump