Opposed Piston 2-Stroke Engine - Revision history

Marcin: /* Free-Piston */

2023-10-01T19:42:25Z

Free-Piston

← Older revision		Revision as of 19:42, 1 October 2023
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	*https://en.m.wikipedia.org/wiki/Free-piston_engine		*https://en.m.wikipedia.org/wiki/Free-piston_engine
	*Hydraulic version -		*Hydraulic version - Innas makes a Free-Piston hydraulic engine -[https://www.innas.com/phone/free-piston-engines.html]

Marcin: /* OSE Proposal for Hydrogen Hydraulic Engine */

2023-10-01T19:29:09Z

OSE Proposal for Hydrogen Hydraulic Engine

← Older revision		Revision as of 19:29, 1 October 2023
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	=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, air bearing-piston, 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

			=Free-Piston=

			*https://en.m.wikipedia.org/wiki/Free-piston_engine
			*Hydraulic version -

Marcin: /* Design Considerations */

2023-10-01T19:24:47Z

Design Considerations

← Older revision		Revision as of 19:24, 1 October 2023
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	*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 [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]		*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]
	*Oil scraper rings are used on outboard side in opposed-piston engines [		*Oil scraper rings are used on outboard side in opposed-piston engines [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]
	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]		*Texturing of bore is i.portant. plateaus work better. Laser etch adds more retention. See above link.

	=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

Marcin at 19:09, 1 October 2023

2023-10-01T19:09:50Z

← Older revision		Revision as of 19:09, 1 October 2023
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			=Design Considerations=

	*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 [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]		*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]
			*Oil scraper rings are used on outboard side in opposed-piston engines [
			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

Marcin at 19:02, 1 October 2023

2023-10-01T19:02:58Z

← Older revision		Revision as of 19:02, 1 October 2023
Line 1:		Line 1:
	*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

Marcin at 19:02, 1 October 2023

2023-10-01T19:02:35Z

← Older revision		Revision as of 19:02, 1 October 2023
Line 1:		Line 1:
	*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
	=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

Marcin at 18:52, 1 October 2023

2023-10-01T18:52:34Z

← Older revision		Revision as of 18:52, 1 October 2023
Line 1:		Line 1:
	*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]

			=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

Marcin at 18:40, 1 October 2023

2023-10-01T18:40:11Z

← Older revision		Revision as of 18:40, 1 October 2023
Line 1:		Line 1:
	*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]

Marcin: Created page with "*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-Pis..."

2023-10-01T18:18:21Z

Created page with "*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-Pis..."

New page

*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]