Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00

FMECHANICAL ENGINEERING LIGHTING HEATING WEAPONS BLASTING ENGINES OR PUMPS F04Liquid pumps F04BPOSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS

F04B53/00Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00

F04B53/001Noise damping F04B53/002by encapsulation F04B53/003by damping supports F04B53/004by mechanical resonators F04B53/005Adaptations or arrangements of valves used as foot valves, of suction strainers, or of mud-boxes F04B53/006Crankshafts F04B53/007Cylinder heads F04B53/008Spacing or clearance between cylinder and piston F04B53/02Packing the free space between cylinders and pistons F04B53/04Draining F04B53/06Venting F04B53/08Cooling Heating Preventing freezing F04B53/10Valves Arrangement of valves F04B53/1002Ball valves F04B53/1005being formed by two closure members working in series F04B53/1007having means for guiding the closure member F04B53/101having means for limiting the opening height F04B53/1012and means for controlling the opening height F04B53/1015Combinations of ball valves working in parallel F04B53/1017Semi-spherical ball valves F04B53/102Disc valves F04B53/1022having means for guiding the closure member axially F04B53/1025the guiding means being provided within the valve opening F04B53/1027the guiding means being provided at both sides of the disc F04B53/103Flat-annular type disc valves F04B53/1032Spring-actuated disc valves F04B53/1035with means for limiting the opening height F04B53/1037Flap valves F04B53/104the closure member being a rigid element oscillating around a fixed point F04B53/1042by means of a flexible connection F04B53/1045the valve being formed by two elements F04B53/1047the valve being formed by one or more flexible elements F04B53/105one flexible element oscillating around a fixed point F04B53/1052two flexible elements oscillating around a fixed point F04B53/1055more than two flexible elements oscillating around a fixed point F04B53/1057the valve being a tube F04B53/106the valve being a membrane F04B53/1062fixed at two or more points at its periphery F04B53/1065fixed at its centre F04B53/1067fixed at its whole periphery and with an opening at its centre F04B53/107the opening normally being closed by a fixed element F04B53/1072the valve being an elastic body, the length thereof changing in the opening direction F04B53/1075the valve being a flexible annular ring F04B53/1077Flow resistance valves F04B53/108Valves characterised by the material F04B53/1082magnetic F04B53/1085having means for limiting the opening height F04B53/1087Valve seats F04B53/109inlet and outlet valve forming one unit F04B53/1092and one single element forming both the inlet and outlet closure member F04B53/1095Valves linked to another valve of another pumping chamber F04B53/1097with means for lifting the closure member for pump cleaning purposes F04B53/12arranged in or on pistons F04B53/121the valve being an annular ring surrounding the piston F04B53/122the piston being free-floating F04B53/123Flexible valves F04B53/124Oscillating valves F04B53/125Reciprocating valves F04B53/126Ball valves F04B53/127Disc valves F04B53/128Annular disc valves F04B53/129Poppet valves F04B53/14Pistons, piston-rods or piston-rod connections F04B53/141Intermediate liquid piston between the driving piston and the pumped liquid F04B53/142Intermediate liquid-piston between a driving piston and a driven piston F04B53/143Sealing provided on the piston F04B53/144Adaptation of piston-rods F04B53/145Rod shock absorber F04B53/146Piston-rod guiding arrangements F04B53/147Mounting or detaching of piston rod F04B53/148the piston being provided with channels which are coacting with the cylinder and are used as a distribution member for another piston-cylinder unit F04B53/16Casings Cylinders Cylinder liners or heads Fluid connections F04B53/162Adaptations of cylinders F04B53/164Stoffing boxes F04B53/166Cylinder liners F04B53/168Mounting of cylinder liners in cylinders F04B53/18Lubricating F04B53/20Filtering F04B53/22Arrangements for enabling ready assembly or disassembly