| 摘要 |
An air regulator for an airgun comprises a body 2 having a first connection point 201 for connection to a source of compressed air, and a second connection point 202 for connection to an air transfer port of an airgun. A cylinder 210 extends between the first and second connection points 201, 202, and a piston 3 is mounted for sliding movement in it. Spring discs 5 bias the piston 3 resiliently towards an end position. The piston 3 has three stepped portions 311, 312, 313 that engage within corresponding stepped bores 211, 212, 213. A passageway 301, 302 connects the cylinder portions 311, 312, such that high pressure air introduced into the cylinder 210 prevails at both cylinder portions 311, 312, which present different surface areas to the high pressure air, to create forces on the piston 3 in opposing directions. The spring discs 5 supplement one of those opposing forces. Such airgun regulators may be made relatively simply of a convenient size, utilising a relatively light spring, whilst still operating very reliably and efficiently. |
