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    • 2. 发明授权
    • Scroll machine with capacity modulation
    • 滚动机具有容量调制
    • US06176686B1
    • 2001-01-23
    • US09253570
    • 1999-02-19
    • Frank S. WallisStanley P. SchumannJeffrey L. Berning
    • Frank S. WallisStanley P. SchumannJeffrey L. Berning
    • F04B4900
    • F04C28/14F04C18/0215F04C23/008F04C2240/603
    • A scroll-type refrigeration compressor is disclosed which incorporates an efficient, reliable, low cost modulation system employing a single actuator to effect switching between full and reduced capacity operation. The modulation system of the present invention includes an elongated member movably supported on the non-orbiting scroll which operates to ensure simultaneous opening and closing one or more unloading passages thus avoiding the possibility of even transient pressure imbalances between opposed compression pockets during operation of the compressor. In one embodiment, the elongated member has the opposite ends interconnected by springs and is rotatably movable to effect the intended modulation. In another embodiment, the elongated member is movable generally along a radial line of the non-orbiting scroll member. Further, the modulation system of the present invention provides for reduced capacity at both start up and shut down thus enabling the use of more efficient lower starting torque motors and reducing the potential for noise generating reverse rotation on shut down.
    • 公开了一种涡旋式制冷压缩机,其包括采用单个致动器以有效地,可靠的低成本的调制系统,以实现在完全容量和减小的容量操作之间的切换。 本发明的调制系统包括可移动地支撑在非绕动涡旋件上的细长构件,其操作以确保同时打开和关闭一个或多个卸载通道,从而避免在压缩机操作期间相对的压缩空腔之间的均匀的瞬时压力不平衡的可能性 。 在一个实施例中,细长构件具有通过弹簧互连的相对端,并且可旋转地移动以实现预期的调制。 在另一个实施例中,细长构件大致沿着非绕动涡旋构件的径向线移动。 此外,本发明的调制系统提供了启动和关闭时的容量的降低,从而能够使用更有效的低起动转矩电动机,并且减少在关闭时产生反向旋转的噪声的可能性。
    • 6. 发明申请
    • CAPACITY MODULATION SYSTEM FOR COMPRESSOR AND METHOD
    • 压缩机和方法的容量调节系统
    • US20090028723A1
    • 2009-01-29
    • US12177528
    • 2008-07-22
    • Frank S. WallisMitch M. KnapkeErnest R. Bergman
    • Frank S. WallisMitch M. KnapkeErnest R. Bergman
    • F04B49/22
    • F04B49/03F04B39/1066F04B49/225F04B53/10Y10T137/2544
    • An apparatus is provided and may include a compression mechanism, a valve plate associated with the compression mechanism and having at least one port in fluid communication with the compression mechanism, and a manifold disposed adjacent to the valve plate. A cylinder may be formed in the manifold and a piston may be disposed within the manifold and may be movable relative to the manifold between a first position separated from the valve plate and a second position engaging the valve plate. A valve element may be disposed within the piston and may be movable relative to the piston and the manifold. The valve element may be movable between an open position spaced apart from the valve plate and permitting flow through the port and into the compression mechanism and a closed position engaging the valve plate and restricting flow through the port and into the compression mechanism.
    • 提供了一种装置,其可以包括压缩机构,与压缩机构相关联的阀板,并且具有与压缩机构流体连通的至少一个端口和邻近阀板设置的歧管。 可以在歧管中形成圆柱体,并且活塞可以设置在歧管内,并且可以在与阀板分离的第一位置和与阀板接合的第二位置之间相对于歧管移动。 阀元件可以设置在活塞内并且可以相对于活塞和歧管移动。 阀元件可以在与阀板间隔开的打开位置之间移动并且允许流过端口并进入压缩机构,并且闭合位置接合阀板并限制流过端口并进入压缩机构的流量。