Semihermetic Compressors 1 Officine Mario Dorin S p

Semi-hermetic Compressors 都凌半封闭压縮机 1 Officine Mario Dorin S. p. A.

Semi-hermetic Compressors: Some technical solution 都凌半封闭压縮机的技术解决方案 Compressors with splash-lubrication 喷射润滑（不带强制润滑油泵） (without forced oil-pump) 2 Officine Mario Dorin S. p. A.

Officine Mario Dorin S. p. A. 3. HFC semihermetic compressors – H range H系列 q H 1 -H 2 -H 34 -H 4 ranges ü DORIN DESIGN ü COMPETITION design DORIN DESIGN 都凌的润滑系 统设计： Ø lower pressure drops in oil circuit 油路压力降低 Ø lower thermal load for the lubricant 润滑油的热负荷小 Ø better lubrication 润滑性能更好 Ø longer compressor life 压縮机使用寿命更长 3 Officine Mario Dorin S. p. A.

4. New H Range – State-of-the-art 达到最高 艺水平的 新H系列 q. Reduced noise levels 噪声值低 Thanks to the new valve plates, to the new internal passages design, and to the new bearings also the H compressors are showing very low Noise levels compared with the K models. (But compared with the other compressor brands in the market also!) Comparison tests had showed noise levels reduction up to 13 db(A). 新型的阀板， 内通道的改进， 新的轴承的使用， H系列与K系列比较， 噪声明显 降低（与市场上其它品牌压縮机相比也要低）比较性试验表明噪声值要低13分贝。 4 Officine Mario Dorin S. p. A.

5. New H Range – State-of-the-art 达到最高 艺水平的 新H系列 q. Improved Performances 更好的性能 比较性试验证明新的H 1000 CS与比泽尔（德国生产的）八角机的相当的型号比较， 结果： Some comparison tests between the new H 1000 CS and an equivalent Bitzer model (Octagon range) showed the following results: • Mass flow = +17% with the same displ. (@ -35°C evap. temp. R 404 A) 质量流量= 排量相同的条件下增加 17% • Effective Mass Flow of a H 1000 CS (48, 8 m 3/h) +3% of an equivalent Bitzer model with a displacement of 56 m 3/h. H 1000 CS（48. 8 48, 8 m 3/h）有效制冷量与比泽尔的排量相当的56 m 3/h的相比 制冷量大 3% • Gas pulsations on the discharge line reduce by 50% 排气震动降低50% Officine Mario Dorin S. p. A. 5

Officine Mario Dorin S. p. A. 6. HFC semihermetic compressors – H range H系列 Ø All compressors models can be used for INVERTER applications 所有的压縮机型号均可变频驱动 Ø Use of specific electric motors 使用专用的电机 Ø Standard compressors can work: 普通的压縮机可以在： ü between 25 Hz and 65 Hz for models not equipped with oil pump 25赫兹和65赫兹频率范围运行（带油泵） ü between 30 Hz and 65 Hz for models equipped with oil pump 30赫兹和65赫兹频率范围运行（不带油泵） 6 Officine Mario Dorin S. p. A.

Officine Mario Dorin S. p. A. Shaft Comparison 曲轴 DORIN Design: 都凌的 Main Bearing : Diam. 28 mm. Specific loads on the bearings: -22% One of most common equivalent Compr. Main bearing: diam. 25 mm 7 Officine Mario Dorin S. p. A.

Officine Mario Dorin S. p. A. Cylinders Cover 气缸盖 DORIN Design: 都凌的 Diam. Bearing 28 mm B: earing Lenght 50 mm Well Know Competitor: Diam. Bearing 20 mm Bearing lenght 25 mm 8 Officine Mario Dorin S. p. A.

Officine Mario Dorin S. p. A. DORIN: 都凌的 Diam. Connecting Rod Eye 62 mm Compet. : diam. Bearing 55 mm, 9 Officine Mario Dorin S. p. A.

DORIN DESIGN都凌的 COMPET: DESIGN BETTER OIL CENTRIFUGATION油 的离心雾化更好 IMPROVED BALANCING OF THE COMPRESSOR AT DIFFERENT SPEEDS压縮机在不同转速运行更为 平衡 INCREASED LUBRICITY AT LOW SPEEDS ALSO在低速运行时，提高 润滑性能 10

Officine Mario Dorin S. p. A. Valve Plate Design DORIN Design: 都凌的 N° 4 Suction holes N° 2 Discharge holes Lower pressure drops Better efficiency降低压力降 提高效率 Competitor: 竞争者 N° 2 Suction holes N° 2 Discharge holes Smaller flow area Lower efficiency流量小效率低 11 Officine Mario Dorin S. p. A.