| 摘要 |
A drive aggregate for a heat pump includes a common cylinder block which combines a heat pump compressor and an internal combustion engine driving the compressor. Bearings mounted in the cylinder block support a common crankshaft which serves both the engine and the compressor and which is formed of a first crankshaft part and a second crankshaft part. The two crankshaft parts (engine-side and compressor-side crankshaft parts) have adjoining end portions which are mutually non-rotatably interconnected. The bearings comprise a first and a second end bearing. The second end bearing supports both adjoining end portions, whereas the first end bearing supports the other end of the first crankshaft part. Between the first and the second end bearings there is situated at least one intermediate bearing which is split for permitting lateral installation thereof on the first crankshaft part. The first crankshaft part has, adjacent the first end bearing, a terminal crank arm, one portion of which is detachable from the first crankshaft part. Likewise, the intermediate bearing is detachably secured to the cylinder block. Thus, after detaching the crank arm portion and the intermediate bearing, the first crankshaft part is removable, by longitudinal displacement, from the second end bearing and thereafter from the cylinder block. |
