| 摘要 |
<p>The dispensing appliance for at least two components comprises a metering pump assembly (1) with a housing comprising a metering cylinder (4, 5) for each component, each metering cylinder (4, 5) having an inlet (3) and an outlet (2) and a displacement plunger (13, 15). The pump assembly (1) is held in a frame comprising frame plates (12, 11) on the dispensing side and on the drive side thereof, the plates being detachably connected to each other by means of tie rods (80A-80D). For providing uniform metering pressures for different ratios the total area of any pair of relative ratio forming metering cylinder/displacement plunger combinations (4, 5; 13, 15) within the range from 1:1 to 20:1 is substantially equal. Such an assembly is also modular, lighweight, highly compact, cost effective and can be easily disassembled for cleaning and maintenance. <IMAGE></p> |
