reciprocating

If by rent-seeking, you mean: using resources to obtain an economic gain from others without reciprocating any benefits back to society through wealth creation.

Maybe nothing is wrong with you and the people that aren't reciprocating aren't the right people for you.

Fluids tend to move as vortices so often reciprocating motion can be at least as efficient as rotary motion.

No reciprocating, no problems with seals (which are a big problem/weakness in Wankel-types; rather unadressed in TFA).

Ported engine designs include the Wankel Rotary design, as well as 2-stroke, reciprocating, piston-in-sleve (traditional 2-stroke ICE) engine designs.

There were lots of physically huge reciprocating steam engines in power houses and pumping stations just before turbines came in.

The issue of reciprocating mass is well known by engineers who work with axial engines.

Higher reciprocating mass increases inertia (reducing throttle response) and increases the forces at the end of the stroke (reducing maximum RPM).

James Pickard had a patent for a crank to convert reciprocating motion to rotational power.

Some might say that Zed fans the flames of controversy by reciprocating with insults.

Axial engines have inherently high reciprocating mass compared to conventional piston engines, which is a catastrophic flaw in a performance engine design.

But it also shows there are other challenges to efficiency than reciprocating pistons.

The canonical use of the term "supercharger" in the automotive context is to describe a compressor that is driven directly from a reciprocating engine's drive output.

But the article makes a point that I find irksome: "with lots of relaxed muscle available at low rpms" Diesels can't rev high (harder to burn, heavier reciprocating parts).

I suppose, like any gesture of trust, no one wants to be first: which business will "risk" opening up all its code for competitors to essentially learn from without reciprocating?