| 摘要 |
733,668. Cylinders. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Feb. 25, 1953 [Feb. 29, 1952], No. 5268/53. Class 122 (1). [Also in Groups XIII and XXVIII] A compressor cylinder comprises a waterjacketed piston portion 102 and a compression space portion 100 insulated therefrom by a ring insert 115 of material, e.g. steel, having a thermal conductance of less than 0.1 cal./cms. sec. ‹ C. The cylinder portion 100 is insulated by a layer 114 of conventional material. |
