11. The Lenoir engine was a double acting engine. 12. The locomotives used a pair of double acting , oscillating cylinders connected to a rotary reversing valve. 13. According to the presentation material, the double acting tanker would be long and capable of breaking ice. 14. A double acting engine is an engine where steam is applied to both sides of the piston. 15. This special combination is much less complex and much less costly than using an entirely double acting design. 16. The double acting ship concept has been selected as the main transportation concept for the Yamal LNG project. 17. To accomplish the double acting feature, additional hydraulic seals are added to internally seal off the individual stages. 18. A double acting engine, in which the steam acted alternately on the two sides of the piston was one. 19. This drive frame reciprocates vertically which then drives the double acting independent oil pumps located in the oil reservoir. 20. Each rocker is connected both to a crankshaft with a 15-foot flywheel and to a double acting pump's plunger.
