Homemade rotary piston pump gap with foreign products
Nevertheless, domestic and foreign products rotary piston pump is still a big gap, mainly as follows:
noise, vibration. Such as H-150 rotary piston pump, most domestic products use anchor bolts, otherwise due to vibration, pump crawling serious; injection, oil spills. When the fuel injection pump start serious operation after oil spills, most products have this problem; stop pumping oil back severely, causing difficulty in starting, the motor overload; poor stability, reliability, due to the production and processing equipment behind, not only low productivity, and interchangeability of components poor, affecting the stability and reliability of the product.
Some manufacturers noted the rotary piston pump appearance quality gap with foreign products, the quality in appearance from the casting quality exterior structural design of products, grabbed the pump body, the appearance of the instrument development, product structure design beautiful, pump the surface does not play putty, paint after assembly, the pump's appearance gives a fresh feeling.