Opposed Piston 2-Stroke Engine: Difference between revisions
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*Potential for Hydrogen operation - [https://www.google.com/url?sa=t&source=web&rct=j&opi=89978449&url=https://achatespower.com/wp-content/uploads/2021/05/Hydrogen-Opposed-Piston-Engines.pdf&ved=2ahUKEwjfvtvut9WBAxUclWoFHdFyBIcQFnoECC4QAQ&usg=AOvVaw0670F_dLZOn613cPHFtnpy] | *Potential for Hydrogen operation - [https://www.google.com/url?sa=t&source=web&rct=j&opi=89978449&url=https://achatespower.com/wp-content/uploads/2021/05/Hydrogen-Opposed-Piston-Engines.pdf&ved=2ahUKEwjfvtvut9WBAxUclWoFHdFyBIcQFnoECC4QAQ&usg=AOvVaw0670F_dLZOn613cPHFtnpy] | ||
*In July 2021, Cummins was awarded an $87M contract by the United States Army to complete the development of the Advanced Combat Engine (ACE), a modular and scalable diesel engine solution that uses opposed-piston technology. [https://en.m.wikipedia.org/wiki/Opposed-piston_engine] | *In July 2021, Cummins was awarded an $87M contract by the United States Army to complete the development of the Advanced Combat Engine (ACE), a modular and scalable diesel engine solution that uses opposed-piston technology. [https://en.m.wikipedia.org/wiki/Opposed-piston_engine] | ||
*Typical 4 stroke fuel-specific oil consumption is .1 percent, and opposed piston engines need to match this to be competitive | *Typical 4 stroke fuel-specific oil consumption is .1 percent, and opposed piston engines need to match this to be competitive [https://www.google.com/url?sa=t&source=web&rct=j&opi=89978449&url=https://achatespower.com/wp-content/uploads/2019/12/2019-01-0068.pdf&ved=2ahUKEwjPmM_fwtWBAxXPlGoFHbpSBMUQFnoECA4QAQ&usg=AOvVaw14FHCvPMhQXdFmyVfDimes] | ||
=OSE Proposal for Hydrogen Hydraulic Engine= | =OSE Proposal for Hydrogen Hydraulic Engine= | ||
*Piston-ported exhaust with overhead valve with direct hydraulic pumping on the opposite side, with pilot-flow cylinder return. May need [[Hydraulic Accumulator]] for smoothing. | *Piston-ported exhaust with overhead valve with direct hydraulic pumping on the opposite side, with pilot-flow cylinder return. May need [[Hydraulic Accumulator]] for smoothing. | ||
*Lubrication is via hydraulic fluid, which addresses the lubrication and oil-burn issue of regular 2-strokes, as no oil is used in the fuel | *Lubrication is via hydraulic fluid, which addresses the lubrication and oil-burn issue of regular 2-strokes, as no oil is used in the fuel | ||
Revision as of 19:02, 1 October 2023
- Potential for Hydrogen operation - [1]
- In July 2021, Cummins was awarded an $87M contract by the United States Army to complete the development of the Advanced Combat Engine (ACE), a modular and scalable diesel engine solution that uses opposed-piston technology. [2]
- Typical 4 stroke fuel-specific oil consumption is .1 percent, and opposed piston engines need to match this to be competitive [3]
OSE Proposal for Hydrogen Hydraulic Engine
- Piston-ported exhaust with overhead valve with direct hydraulic pumping on the opposite side, with pilot-flow cylinder return. May need Hydraulic Accumulator for smoothing.
- Lubrication is via hydraulic fluid, which addresses the lubrication and oil-burn issue of regular 2-strokes, as no oil is used in the fuel