DISPLACEMENT MACHINE ACCORDING TO SPIRAL PRINCIPLE, METHOD FOR OPERATING DISPLACEMENT MACHINE, VEHICLE AIR-CONDITIONING FACILITIES, AND VEHICLE
To provide a displacement machine according to the spiral principle, in particular a scroll compressor, in which a counter-pressure chamber is formed between a low-pressure chamber and a spiral, the counter-pressure chamber being easily structured by different operating pressures.SOLUTION: A displac...
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Zusammenfassung: | To provide a displacement machine according to the spiral principle, in particular a scroll compressor, in which a counter-pressure chamber is formed between a low-pressure chamber and a spiral, the counter-pressure chamber being easily structured by different operating pressures.SOLUTION: A displacement spiral (31) has only one passage, which at least temporarily produces a fluid connection between a counter-pressure chamber and at least one of compression chambers (65a, 65b, 65c, 65d). In this case, a passage (60) is formed in such a portion of a displacement spiral (31) in which the passage (60) in the activated state of the displacement machine is opened on reaching of 85%-100%, in particular of 90%-100%, in particular of 95%, of the relative compression chamber volume, and remains opened during a subsequent rotation, after opening, of the displacement spiral (31) about a rotational angle of 120°-360°, in particular of 255°-315°, in particular of 270°.SELECTED DRAWING: Figure 2
【課題】スパイラル原理に基づく押しのけ機械、特にスクロール圧縮器であって、低圧チャンバと押しのけスパイラルの間に背圧チャンバを形成し、背圧チャンバを異なる駆動圧によって簡単に構築する。【解決手段】押しのけスパイラル(31)が、背圧チャンバと圧縮チャンバの少なくとも1つ(65a、65b、65c、65d)との間に少なくとも一時的に流体接続を形成する1つの通路のみを有し、その場合に通路(60)が押しのけスパイラル(31)の次のような部分内に、すなわち押しのけ機械が能動化された状態において、相対圧縮チャンバ体積の85%−100%、特に90%−100%、特に95%に達した場合に通路(60)が開放され、かつ開放に続いて押しのけスパイラル(31)が120°−360°、特に255°−315°、特に270°の回転角度だけ回転している間開放されたままとなるような部分内に、形成されている。【選択図】図2 |
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