An future end to DPF Diesels?

[ericm979]

Drop in DFI mechanical injectors would be pretty cool.

There are scientific papers on DFI unfortunately I haven't found any that are not behind pay walls.
There's also a patent: http://patft.uspto.gov/netacgi/nph-...G&l=50&s1=9,909,549.PN.&OS=PN/9,909,549&RS=PN

The patent includes the idea of attaching the duct to the injector.

 

[sd455dan]

Drop in DFI mechanical injectors would be pretty cool.

There are scientific papers on DFI unfortunately I haven't found any that are not behind pay walls.
There's also a patent: http://patft.uspto.gov/netacgi/nph-...G&l=50&s1=9,909,549.PN.&OS=PN/9,909,549&RS=PN

The patent includes the idea of attaching the duct to the injector.

Wonder how long it will take for a youtube vid to show up from someone with good machining equipment and an old diesel engine to play with to actually build a working production engine by just modifying the injector(s) and possibly head.

Is it legal to use the Bunsen burner tech as an individual not selling anything for personal use???

 

[Cougsfan]

Is it legal to use the Bunsen burner tech as an individual not selling anything for personal use???

As long as you don't market it, you could legally make whatever modifications you want without worrying about infringing on patents.

 

[Reb954]

A patent protects against making, using or selling.

 

[Gale Hawkins]

A patent protects against making, using or selling.

Yes as does a posted 55 MPH speed limit protects
from people driving 56 MPH or faster.

 

[fried1765]

A patent protects against making, using or selling.

As we protect our bedrooms from the mattress police, we should now protect our garages from the tractor police?

 

[WinterDeere]

Plus we have DEF that gets injected in small quanities to reduce NOx supposedly which doesn't work quite often in the winter.

DEF in tractors? Say it ain’t so!

 

[ericm979]

A patent protects against making, using or selling.

In practice they're unlikely to care if you build one for yourself and don't market it. You haven't made any money from it so the triple damages the assignee could recover are still zero. They'd have to be going after you out of spite. Sandia (funded by the federal government) probably would not do that.

Even the organizations charged with writing intellectual property law are confused on the issue. From WIPO's FAQ:

"A patent owner has the right to decide who may – or may not – use the patented invention for the period in which the invention is protected. In other words, patent protection means that the invention cannot be commercially made, used, distributed, imported, or sold by others without the patent owner's consent."

Case law in individual countries probably does make this clear but that's not something I know. Next time I talk to a patent attorney I'll ask.

 

[Threepoint]

I think Cougsfan is probably referring to the "private and non-commercial use" exception to patent law protection in most developed countries. E.g., see this abstract:
https://www.wageningenacademic.com/doi/abs/10.3920/978-90-8686-885-8_8

 

[sd455dan]

Thread Bump

and new tech for Gas engines that uses "jet" injection Somewhat like but different than the old Honda CVCC (Compound Vortex Combustion Chamber) design. 20 % fuel economy and 95% reduction in NOx

From MAHLE the auto parts/tech company

Want +20% MPG? Bam, Here You Go - Autoline Exclusives - YouTube