| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a compact speed increasing valve that forms or releases a differential circuit in a hydraulic circuit.SOLUTION: A valve of this invention comprises: a valve main body 11; a supplying passage; a return passage; a first output passage 63; a second output passage 64; a first through-pass hole 35 formed at the main valve body 11; a first branch passage formed to cause the second output passage 64 to be communicated with the supply passage; a second branch passage formed to cause the first output passage 63 to be communicated with the first through-pass hole 35; a spool 30 and a first poppet 31 fitted and inserted into the first through-pass hole 35; a second through-pass hole 36 and a punched hole 38 formed at the spool 30; a second poppet held at the first branch passage; a first spring member 20 acting against the spool 30; a second spring member 32 acting against the first poppet 31; and a third spring member acting against the second poppet.</p> |
