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Performance of a Printed Bimetallic (Stainless Steel and Bronze) Engine Head Operating under Stoichiometric and Lean Spark Ignited (SI) Combustion of Natural Gas

Argonne National Laboratory-Munidhar Biruduganti, Douglas Longman
Oak Ridge National Laboratory-Michael Kass, Brian Kaul, John Storey, Amelia Elliott, Derek Siddel
  • Technical Paper
  • 2020-01-0770
To be published on 2020-04-14 by SAE International in United States
Additive manufacturing was used to fabricate a head for an automotive-scale single-cylinder engine operating on natural gas. The head was consisted of a bimetallic composition of stainless steel and bronze. The engine performance using the bimetallic head was compared against the stock cast iron head. The heads were tested at two speeds (1200 and 1800 rpm), two brake mean effective pressures (6 and 10 bar), and two equivalence ratios (0.7 and 1.0). The bimetallic head showed good durability over the test and produced equivalent efficiencies, exhaust temperatures, and heat rejection to the coolant to the stock head. Higher combustion temperatures and advanced combustion phasing resulted from use with the bimetallic head. The implication is that with optimization of the valve timing, an efficiency benefit may be realized with the bimetallic head.
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Elucidation of the Sulfide Corrosion Mechanism in Piston Pin Bushings

Honda R&D Co., Ltd.-Ryuta Motani, Kazuki Maeyama, Kenta Yoshii, Shinji Oshida, Hiroki Masuda, Tomohiro Ikeda, Tatsuya Okayama, Shinichi Takahashi
  • Technical Paper
  • 2020-01-1079
To be published on 2020-04-14 by SAE International in United States
Recent trends to downsize engines have resulted in lighter weight and greater compactness. At the same time, however, power density has increased due to the addition of turbocharger and other such means to supplement engine power and torque, and this has increased the thermal and mechanical load. In this kind of environment, corrosion of the copper alloy bushing (piston pin bushing) that is press-fitted in the small end of the connecting rod becomes an issue. The material used in automobile bearings, of which the bushing is a typical example, is known to undergo sulfidation corrosion through reaction with an extreme-pressure additive Zinc Dialkyldithiophosphate (ZnDTP) in the lubricating oil. However, that reaction path has not been clarified. The purpose of the present research, therefore, is to clarify the reaction path of ZnDTP and copper in an actual engine environment. In order to ascertain the effects of the heat, copper content, and state of deterioration of the oil on corrosion, component corrosion tests were conducted. The results of the component corrosion tests suggested that the main factor…
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WIRE, ELECTRICAL, POLYTETRAFLUOROETHYLENE/POLYMIDE INSULATED, LIGHT WEIGHT, SILVER COATED, HIGH STRENGTH OR ULTRA HIGH STRENGTH COPPER ALLOY, 200 °C, 600 VOLT, ROHS

AE-8D Wire and Cable Committee
  • Aerospace Standard
  • AS22759/81C
  • Current
Published 2020-03-24 by SAE International in United States
No Abstract Available.
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WIRE, ELECTRICAL, POLYTETRAFLUOROETHYLENE/POLYMIDE INSULATED, LIGHT WEIGHT, NICKEL COATED, HIGH STRENGTH OR ULTRA HIGH STRENGTH COPPER ALLOY, 260 °C, 600 VOLT, ROHS

AE-8D Wire and Cable Committee
  • Aerospace Standard
  • AS22759/82C
  • Current
Published 2020-03-24 by SAE International in United States
No Abstract Available.
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Test Methods for Insulated Electric Wire

AE-8D Wire and Cable Committee
  • Aerospace Standard
  • AS4373F
  • Current
Published 2020-03-12 by SAE International in United States
This standard describes test methods for insulated, single conductor, electric wire intended for aerospace applications. Particular requirements for the wire being tested need to be specified in a procurement document or other detail specification. Suggested minimum requirements are included in the notes at the end of some of the test methods. SAE Performance Standard AS4372 uses some of the tests in this document for evaluating comparative performance of aerospace wires.
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Fittings, 37 Degree Internal Flare, Fluid Connection, Procurement Specification

G-3, Aerospace Couplings, Fittings, Hose, Tubing Assemblies
  • Aerospace Standard
  • AS4841C
  • Current
Published 2020-03-10 by SAE International in United States
This SAE Aerospace Standard (AS) establishes the requirements for 37 degree flared tube fittings or machined internal cone fluid connection fittings for use with 37 degree external cone, spherical nose, and seal ring fittings in all types of aerospace fluid systems (see Section 6).
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CONTACTS, PIN, CRIMP REMOVABLE ,CONNECTORS, ELECTRICAL, CIRCULAR, MINIATURE, COMPOSITE, HIGH DENSITY, QUICK COUPLING, ENVIRONMENT RESISTANT, (SERIES B)

AE-8C1 Connectors Committee
  • Aerospace Standard
  • AS29600/24A
  • Current
Published 2020-03-09 by SAE International in United States
No Abstract Available.
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CONTACTS, SOCKET, CRIMP REMOVABLE, CONNECTORS, ELECTRICAL, CIRCULAR, MINIATURE, COMPOSITE, HIGH DENSITY, QUICK COUPLING, ENVIRONMENT RESISTANT, (FOR AS29600 SERIES B)

AE-8C1 Connectors Committee
  • Aerospace Standard
  • AS29600/23A
  • Current
Published 2020-03-09 by SAE International in United States
No Abstract Available.
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Plating, Silver Copper Strike, Low Bake

AMS B Finishes Processes and Fluids Committee
  • Aerospace Material Specification
  • AMS2412L
  • Current
Published 2020-01-16 by SAE International in United States
This specification covers the requirements for silver deposited on metal parts with a copper strike between the basis metal and the silver deposit.
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WIRE, ELECTRICAL, POLYTETRAFLUOROETHYLENE/POLYIMIDE INSULATED, NORMAL WEIGHT, SILVER COATED, HIGH STRENGTH OR ULTRA HIGH STRENGTH COPPER, ALLOY, 200 °C, 600 VOLTS ROHS

AE-8D Wire and Cable Committee
  • Aerospace Standard
  • AS22759/89D
  • Current
Published 2019-12-18 by SAE International in United States
No Abstract Available.
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Annotation ability available