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(1) The volumetric efficiency of C - SB series of Scroll Compressors was investigated experimentally.

(2) Starting with the volumetric efficiency of compressor, the matching regulation is revealed by data - fit and surface - fit.

(3) The high volumetric efficiency of pump and therefore has been maintained.

(4) Besides, the equation used to predict the volumetric efficiency was given for variable speed reciprocating compressors.

(5) The test method of pressure loss, flow loss and frictional force loss etc. of the hydraulic pumping units is presented(Sentence dictionary), from which the mechanical efficiency and volumetric efficiency are obtained.

(6) The effects of intake chamber volume, diameter and length of inlet duct and inlet manifold on volumetric efficiency were analyzed.

(7) It has characteristics of small size, low noise and working smoothly; further more, its volumetric efficiency is first rank in the displacement compressor domain.

(8) All along, there are fewer researches on the suction volumetric efficiency of heavy caliber piston pump and they are behind the needs of production development.

(9) This paper introduces the effect of connecting pipe length of the flow measurement system on volumetric efficiency and torque characteristic of gasoline engines.

(10) This product through the impeller on a new line so that the volumetric efficiency further improved.

(11) The test results show that, without obvious increase of volumetric efficiency, this system is able to make obvious change to the exhaust gas emission of diesel engine.

(12) Finally the calibration on a WF4C27F-E gasoline engine is performed, and the MAP graphs of the volumetric efficiency and the spark advance angle are obtained.

(13) The DA Feeder introduces material into the conveying system at highest volumetric efficiency when material flow into the feeder is controlled to permit free venting.

(14) Valve timing is a major factor in achieving good volumetric efficiency.

(15) Dividing the actual flow by the theoretical value calculated above will yield a value which, taken as a percent, indicates volumetric efficiency.

(16) The test results showed that, without obvious increase of volumetric efficiency, this system is able to make obviously change to the particulate and NOx emission.

(17) Since scroll compressor has neither suction valve nor clearance, its volumetric efficiency is 90-98%, while that of reciprocating compressors is only 65-75%.

(18) Presented in this paper is the relationship between intake pressure wave actions and the general volumetric efficiency speed characteristics of multi cylinder engines.

(19) When the load is serious unbalanced, each sub-channel still keeps high volumetric efficiency and equal flow.

(20) Reduction of the spool moving mass and viscous damping coefficient minifies the phase offset between the spool and the piston movements and leads to the increase of system volumetric efficiency.