Design Data for “Cocktail Shaker” Cooled Pistons and Valves

  title={Design Data for “Cocktail Shaker” Cooled Pistons and Valves},
  author={J. E. Bush and A. London},
Managing engine thermal state to reduce friction losses during warm-up
The thermal behaviour of a 2.4 l direct injection diesel engine has been investigated to identify how the fuel consumption penalty associated with operation during warm–up can be minimised. A versionExpand
Numerical investigation on the effects of spatial angle on oscillating flow and heat transfer characteristics of piston cooling galleries
Abstract The oscillating cooling method is currently one of the most efficient cooling solutions for highly reinforced pistons. Previous studies only focused on the piston galleries with theExpand
Application of the phase-averaged pre-processing method in identification of oscillatory two-phase flow patterns based on textural features
This study aims to determine common rules from the instantaneous flow patterns by eliminating the random variability and making the oscillatory two-phase flow pattern images more representative by applying the phase-averaged pre-processing and textural feature method. Expand
Flexible section-profile design of a cooling gallery inside a diesel engine piston
Abstract The cooling gallery plays an important role in piston cooling. In order to achieve the structural optimization of the cooling gallery, a piston cooling gallery of a common-rail diesel engineExpand
Three-dimensional simulation of two-phase flow in a complex gallery and telescopic pipe coupled system
Abstract Highly efficient cooling of heavy duty marine diesel engine pistons is one of the key parts of modern advanced engine piston design. Due to the high efficiency of the shaker cooling system,Expand
Two-phase flow-based numerical investigation of the temperature maps of sodium-cooled exhaust valves in a turbocharged engine
Abstract Valves at the outlet of the combustion chamber in modern combustion engines must withstand very high temperature and acceleration. Such valves are subject to thermal loading to have toExpand
The gas-liquid two-phase flow in reciprocating enclosure with piston cooling gallery application
Abstract With the specific power of diesel engines steadily advancing, heat removal from the piston has become a determining factor to ensure engine reliability and durability of engines. However,Expand
Experimental visualization of gas-liquid-solid three-phase flow during reciprocating motion
Abstract In the current work, a high-speed camera was employed to capture the flow patterns of nanofluids inside a simplified piston gallery at various crank angles. The heat transfer mechanisms ofExpand
Numerical investigation on the oscillating flow and uneven heat transfer processes of the cooling oil inside a piston gallery
Abstract In previous research of achieving high cooling efficiency of engine pistons, the phenomenon of uneven heat transfer has not been investigated or recognized. These issues lead to a greaterExpand