In a radial piston pump, reversal and control of fluid flow are accomplished by moving the ().
A、central valve
B、radial plunger
C、floating ring
D、cylinder body
A、central valve
B、radial plunger
C、floating ring
D、cylinder body
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、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
A、piston crown B、piston ring groove C、piston skirt D、piston ring area
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、piston gudgeon pin B、piston skirt C、cross-head D、cross-head pin
A、A.diametrical tension B、B.gap clearance C、C.radial thickness D、D.face thickness
A、piston crown B、piston groove C、piston skirt D、piston ring belt