Abstract: A floor mat for containing household liquid spills. The containment mat includes a folded sheet that contains spilled liquids, and an absorption sheet which absorbs them. The absorption sheet is held in place by the containment sheet entirely by surface tension between the two sheets, and is therefore easily removed and replaced. The containment sheet is sewn in a folded configuration having interlocking corners, thus ensuring that there is no slit in the mat through which the liquids could escape. A fitted cover protects and holds the containment and absorption sheets together as a compact unit.

Abstract: Hydrogen engine with controlled combustion comprises suction means connected to the crankcase reducing or precluding flow of lubricating oil or associated gases into the combustion chamber.

Abstract: An air inlet nozzle is mounted in a valve pocket above the intake valve of a combustion chamber to allow high speed airflow to mix with fuel in the pocket and enter the combustion chamber to create desired air swirl. Airflow through the nozzle is varied by a computer operated solenoid.