tailieunhanh - ARNOLD, K. (1999). Design of Gas-Handling Systems and Facilities (2nd ed.) Episode 2 Part 2

Tham khảo tài liệu 'arnold, k. (1999). design of gas-handling systems and facilities (2nd ed.) episode 2 part 2', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | 1. Fully-enclosed camshaft is built in sections for easy removal. 2. Crosshead guides are cast integrally with engine frame. 3. The best compressor valves for any service selected from the unmatched Dresser-Rand line including famous gas-cushioned Channel Valves. 4. Clearance pockets and other types of capacity control devices are available to suit any application. 5. Compressor cylinders dry or water-cooled of cast iron nodular iron or forged steel are engineered to suit required pressures and capacities. 6. Full-floating packing adjusts itself in operation and assures best seal with minimum wear. Packing is pressure-lubricated and vented. 7. Oil wiper rings remove excess oil from piston rod and seal the frame. 8. Crossheads running in bored guides have shim-adjusted babbitted shoes at top and bottom and either full-floating or fixed crosshead pins. Suitable for addition of balance weights. 9. Simple low-cost foundation made possible by the smaller size lighter weight and smooth running blance of the KVSR. 10. Large frame openings give ample and unrestricted access to crankcase. 11. Flywheel-mounted ring gear for starting motors permits cranking with either air or gas between 150 psi and 225 psi supply pressure. 12. Rigid alloy-iron frame and top are well reinforced with cast-in ribs. Integrally cast bulkheads hold main bearings on both sides of every crankthrow. Keys double-bolting and tie rods are used to secure the frame and frame top together as a solid structure. 13. To assure oil-tight joints between power cylinders and frame top the frame top is bored and the precision-machined cylinder extension is provided with O-rings. 14. Cylinder water jackets are provided with removable cover plates for inspection. 15. Pistons are precision-ground for a perfect fit in a honed cylinder liner bore. Long-skirt lightweight piston reduces wear. 16. For sustained low oil consumption narrow deep-groove piston rings conform easily to liner walls. Top compression ring is .