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Keywords: lubricating oils
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Journal Articles
Article Type: Research Papers
J. Eng. Gas Turbines Power. May 2012, 134(5): 052509.
Published Online: March 1, 2012
... stiffnesses and added mass coefficients; the latter was previously ignored or largely under predicted. 21 06 2011 22 06 2011 01 03 2012 01 03 2012 compressors finite element analysis hydrodynamics lubricating oils machine bearings rotors Oil seals are used...
Journal Articles
Article Type: Research Papers
J. Eng. Gas Turbines Power. November 2011, 133(11): 112002.
Published Online: May 19, 2011
... in significant loss of lubricating oil in the main lube oil reservoir. Third-party engineered and manufactured mist eliminating vessels met the requirement of 5% opacity prior to purge air stream being released into the surrounding atmosphere. Third-party-supplied mist eliminating elements were originally...
Journal Articles
Article Type: Research Papers
J. Eng. Gas Turbines Power. June 2011, 133(6): 062401.
Published Online: February 15, 2011
... can be tested with lubrication oil as working fluid. The first pump and separator prototypes (integrated and non-integrated) were tested on a water-air test bench. The ATM Department also developed in previous projects and continues developing a second test bench to test components...
Journal Articles
Article Type: Research Papers
J. Eng. Gas Turbines Power. November 2010, 132(11): 112503.
Published Online: August 11, 2010
... automotive engineering helicopters lubricating oils machine bearings rotary engines torque measurement turbines Metal mesh foil bearings (MMFBs) are promising rotor support elements in oil-free turbomachineries with benefits in system thermodynamic efficiency, power density, and carbon foot...
Journal Articles
Article Type: Research Papers
J. Eng. Gas Turbines Power. April 2010, 132(4): 042801.
Published Online: January 12, 2010
... metals in the lubricating oil samples drawn from the engines at regular intervals were investigated. Relatively lower wear concentrations of all wear metals except lead were found in the lubricating oil of B20 fueled engine. To quantify the wear of cylinder liners, surface parameters at different...
Journal Articles
Article Type: Research Papers
J. Eng. Gas Turbines Power. March 2010, 132(3): 032805.
Published Online: November 30, 2009
... the thermal oxidative degradation (Fig. 8 ). 09 03 2009 07 04 2009 30 11 2009 30 11 2009 ageing diesel engines lubricating oils lubrication oxidation pistons rapid thermal processing reaction rate constants Lubricants are essential to the good operation...
Journal Articles
Article Type: Technical Briefs
J. Eng. Gas Turbines Power. September 2009, 131(5): 054505.
Published Online: June 9, 2009
... bearing represents strong adaptive capacity of speed run-up and coastdown, and the capacity of withstanding impact and vibration. 25 08 2008 08 09 2008 09 06 2009 impact (mechanical) lubricating oils machine bearings rotors vibrations oil lubrication five-leaf foil...
Journal Articles
Article Type: Technical Briefs
J. Eng. Gas Turbines Power. May 2009, 131(3): 034503.
Published Online: February 10, 2009
... the orifice. 14 04 2008 15 05 2008 10 02 2009 aerospace computing aerospace engines flow simulation gears heat exchangers lubricating oils lubrication machine bearings nozzles numerical analysis orifices (mechanical) pipes temperature distribution aero-engine...
Journal Articles
Article Type: Research Papers
J. Eng. Gas Turbines Power. November 2008, 130(6): 062503.
Published Online: August 28, 2008
... with increasing rotational speed, with increasing particle size, and with decreasing air flow rate. In parallel, the pressure drop across the breather increases with increasing speed and increasing air flow. aerospace engines design engineering lubricating oils particle size separation shafts A key...
Journal Articles
Article Type: Research Papers
J. Eng. Gas Turbines Power. November 2008, 130(6): 062501.
Published Online: August 21, 2008
... hydrodynamics lubricating oils lubrication machine bearings reliability rotors wear airfoil bearing hydrostatic hybrid perturbation analysis stability Airfoil bearings have been successfully used in high speed microturbomachinery such as turbocharger∕generators, aircraft air cycle...
Journal Articles
Article Type: Research Papers
J. Eng. Gas Turbines Power. March 2008, 130(2): 022802.
Published Online: January 22, 2008
... , London , pp. 133 – 145 . 19 07 2006 27 08 2007 22 01 2008 engine cylinders friction ignition internal combustion engines lubricating oils pistons rings (structures) starting thermodynamic properties viscosity It is well known that reduction of engine...
Journal Articles
Article Type: Technical Papers
J. Eng. Gas Turbines Power. January 2007, 129(1): 287–293.
Published Online: May 24, 2006
..., the oil level was 10 mm below the lowest point of the crank shaft counter weight trajectory. When the engine was operating, approximately 2.2 l of oil remained in the sump, while the rest occupied the various engine passageways. Properties of the lubrication oil used...
Journal Articles
Article Type: Technical Papers
J. Eng. Gas Turbines Power. April 2007, 129(2): 488–493.
Published Online: September 28, 2005
... distribution. 25 08 2005 28 09 2005 vehicles automotive engineering rotors engines lubricating oils shafts rings (structures) compressors machine bearings Most commercial automotive turbochargers incorporate engine oil lubricated floating ring bearings...
Journal Articles
Article Type: Technical Papers
J. Eng. Gas Turbines Power. October 2006, 128(4): 921–927.
Published Online: September 26, 2005
... direct-injection compression-ignition engine. Test setup was run for 96 hr under predetermined loading cycles in two phases; normally, operating condition (i.e., without EGR) and with a fixed EGR rate of 25%. Addition of metallic wear debris in the lubricating oil samples drawn after regular interval...
Journal Articles
Article Type: Technical Papers
J. Eng. Gas Turbines Power. July 2005, 127(3): 638–645.
Published Online: June 24, 2005
... 1, 2004. IGTI Review Chair: A. J. Strazisar. 13 June 2004 01 October 2003 01 March 2004 24 06 2005 frequency response electric machines lubricating oils rotors machine bearings dynamic response frequency-domain analysis hydrodynamics vibrations Rotating...
Journal Articles
Article Type: Technical Papers
J. Eng. Gas Turbines Power. January 2006, 128(1): 163–172.
Published Online: December 13, 2004
.... Nevertheless, understanding these processes is very important in order to design reliable and efficient lubrication systems that supply the necessary amounts of oil while minimizing leakage. drops gas turbines jet engines lubricating oils aerodynamics Navier-Stokes equations film flow 03...
Journal Articles
Article Type: Technical Papers
J. Eng. Gas Turbines Power. July 2006, 128(3): 685–693.
Published Online: September 24, 2004
... 20 01 2003 24 09 2004 lubricating oils liquid films heat transfer pistons diesel engines viscosity hydrodynamics thermodynamics Most of the mechanical friction power losses in internal combustion engines occur on lubricated surfaces around the piston rings and skirt...
Journal Articles
Article Type: Technical Papers
J. Eng. Gas Turbines Power. January 2006, 128(1): 111–117.
Published Online: March 1, 2004
... this angle is determined using the model suggested by Naber and Reitz ( 9 ). Schematic showing the structure of droplet-film interaction model and the transition criteria for the various outcomes aerospace engines lubricating oils rolling bearings film flow two-phase flow numerical...
Journal Articles
Article Type: Technical Papers
J. Eng. Gas Turbines Power. January 2007, 129(1): 144–153.
Published Online: March 1, 2004
..., the misalignment of the coupling is the parameter that is most effective on the onset of instability. In particular angular misalignment resulted in the smoothest rotor response. rotors machine bearings couplings lubricating oils stability Ever since the 1925 paper of Newkirk and Taylor ( 1...
Journal Articles
Article Type: Technical Papers
J. Eng. Gas Turbines Power. January 2006, 128(1): 153–162.
Published Online: March 1, 2004
... proportion have occurred through previously unidentified chloride corrosion as a result of contamination of the lubricating oil system with salt water from the seawater lubricating oil cooler (SWLO cooler). Despite joint ownership of both engine variants with the Royal Netherlands Navy, there was no clear...