(1) suction vacuum test 1) dry suction vacuum test. In the gasoline pump and the inlet pipe is dry, the camshaft drives the gasoline pump at a speed of 50-60R / MIN, opens the oil outlet, closes the oil inlet, and measures the vacuum degree of oil absorption.
2) wet vacuum suction test. In the gasoline pump and the inlet pipe is filled with gasoline, the camshaft drives the gasoline pump at 25%, 50% and 100% of the maximum speed, opens the oil outlet and closes the oil inlet, and determines the vacuum degree of oil absorption.
(2) A gasoline pump with a manual pump unit operates with a manual pump oil unit at a speed of about 50 times per minute, opens the outlet port and closes the inlet port, and determines the suction vacuum level.
(3) gasoline pump oil time test. In the gasoline pump and the inlet pipe is dry, the camshaft drives the gasoline pump at a speed of 50-60 R / MIN. At the same time, it opens the oil inlet and the oil outlet, and determines the time when the oil outlet starts to oil out.
(4) the maximum closed pressure test. The camshaft drives the gasoline pump at maximum speed, opens the inlet port and closes the outlet port, measuring the maximum closing pressure.
(5) the amount of oil test. Gasoline pump measured at different temperatures, speed, oil resistance under the oil.
(6) sealing test
1) Closure pressure drop value. The camshaft drives the gasoline pump at its maximum speed, opens the inlet port and closes the outlet port. After the maximum closing pressure is reached, the camshaft is stopped and the highest point of the cam is contacted with the rocker arm of the gasoline pump. Then, the closing pressure Falling value, measurement time is 1MIN.
2) leakage. The following two test methods, according to the actual situation of the product choose a: camshaft drive the maximum speed of the gas pump, open the inlet and close the outlet, after 3MIN observe the various parts of the gasoline pump leakage. In the gas inlet of the pump to 98KPA air pressure, close the outlet, immersed in the test oil to maintain 10S or more, observe the various parts of the gas pump leaks.
(7) Durability test. Gas pump durability test to allow intermittent. After the test, the wet vacuum suction, the maximum speed of the oil outlet opening at room temperature when the amount of oil and closed pressure drop and leakage test, and check the various parts of the pump without cracks, deformation and other harmful defects. During the test, the lubricant temperature should be monitored. Lubricating oil should be added or replaced according to the amount of oil and oil.
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