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atop the piston crown beneath the piston crown at the base of the piston skirt inside the cylinder liner cooling water jacket
top of the piston and bottom side of head, with the piston at BDC piston and head, including the space around the piston to the top of the upper ringand under the valves, with the piston at TDC bottom of the piston and bottom side of the head at TDC, regardless of upper ringlocation and valve placement top of the piston and bottom side of the head at TDC as compared to that which existsbetween the top of the piston and bottom side of head at BDC
piston crown piston ring groove piston skirt piston ring area
transfer heat from the cylinder to the piston scrape oil from the sides of the piston seal the combustion space from the crankcases prevent any piston contact with the cylinder liner
seal the space between the piston and the liner reduce the amount of lube oil burned in the combustion chamber transmit heat from the piston to the cylinder liner damp out fluctuations of the piston side thrust
piston gudgeon pin piston skirt cross-head cross-head pin
the same piston the piston nearby the other pistons the generators on board
poor cooling of cylinder walls improper cooling of the piston insufficient piston lubrication all of the above
central valve radial plunger floating ring cylinder body
to help to limit to protect to remove
twice as large as with a cast iron piston the same size as with a cast iron piston half as large as with a cast iron piston the same size as the crown of an aluminum piston
piston skirt piston crown guide way cross-head
Because the piston is exposed to very high temperature, it must be cooled The lower the piston cooling temperature is, the better it is Both water and lube oil can be used as coolant One of the piston cooling methods is vibration cooling, with better effect
piston crown piston groove piston skirt piston ring belt
cause blow-by chemically attack the piston skirt form an emulsion of lube oil and water raise the piston temperature
the piston is just coming upward from the bottom dead center the piston has moved about one-fifth of the way up the piston has moved most of the way up and almost reached the TDC the piston has just past the TDC
alternation of side thrust a breakdown of the lube oil film on the cylinder wall worn piston boss piston pin bearings fluctuating gas pressure in the combustion space
low-half, cast iron; top-half, heat-resistant steel low-half, aluminum; top-half, stainless steel piston skirt; cast iron; piston crown; heat-resistant steel piston skirt; aluminum; piston crown; stainless steel
the cylinder cover the piston rings the piston crown the piston skirt
the piston rings the piston rods the piston bosses the piston heads