A、contaminated fluid
B、pitted thrust rings
C、worn pintle bearings
D、obstructed suctions passage
更多“If a radial piston hydraulic pump fails to deliver rated fluid volume, the cause can be （）.”相关的问题
A、radially from the shaft B、parallel to each other and to the shaft C、parallel to each other but at a right angle to the shaft D、at an angle to each other and to the shaft
A、central valve B、radial plunger C、floating ring D、cylinder body
A、Surrounding the fixed shaft is a hollow shaft B、This hollow shaft carries radial bores C、Each bore is fitted with a well-lapped plunger D、There are always even numbers of bores
A、cause blow-by B、chemically attack the piston skirt C、form an emulsion of lube oil and water D、raise the piston temperature
A、alternation of side thrust B、a breakdown of the lube oil film on the cylinder wall C、worn piston boss piston pin bearings D、fluctuating gas pressure in the combustion space
A、Variable volumes can be obtained with gear pumps only by variation of the pump drive speed B、A radial piston pump houses sliding pistons in a stationary cylinder block through which passes a rotating pintle or ported shaft C、The amount of fluid displaced per revolution of an axial piston rotary pump is dependent on the angle formed between the cylinder block and valve plate D、All of the above
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