Multi-pulse jet generator and air conditioner having same

An air conditioner comprising:

• a cabinet having an inhalation port and a discharge port;
• at least one heat exchanger disposed in the cabinet;
• and
• a multi-pulsed jets generating apparatus including:
• at least one actuator including at least one diaphragm, a plurality of cavities and a plurality of orifices, and being configured so that each actuator
• includes at least two cavities that are contiguously arranged with a respective diaphragm separating each two adjacent cavities of the at least two cavities, and each cavity of the at least two cavities communicates with an outside of the actuator through a respective orifice, and
• the actuator generates a respective pulsed jet in each respective orifice through which each cavity of the at least two cavities communicates, according to a volume change of the at least two cavities caused by vibration of the diaphragm separating each two adjacent cavities of the at least two cavities, and
• a manifold, which is elongated, including
• a plurality of inner passages which are contiguously arranged, and
• a plurality of injection ports which include a respective multiple number of injection ports for each inner passage, and that are arranged so that the multiple number of injection ports for each inner passage are at different positions along an axis in which the manifold is elongated, or have different injection angles, than the multiple number of injection ports for an adjacent inner passage,
• wherein each inner passage communicates with a respective cavity of the at least two cavities of each actuator through the respective orifice through which the respective cavity communicates, to receive the pulsed jet generated in the orifice, and generates a plurality of pulsed jets that are output through the multiple number of input ports for the inner passage, so that the manifold thereby generates multi-pulsed jets which are output through the plurality of injection ports.

An apparatus comprising:

• a first actuator including
• first and second cavities that are adjacent to each other;
• a first diaphragm separating the first and second cavities,
• a first orifice through which the first cavity communicates to an outside of the first actuator, and
• a second orifice through which the second cavity communicates to an outside of the first actuator,
• wherein the first actuator is configured so that the first actuator generates a first pulsed jet in the first orifice and a second pulsed jet in the second orifice according to a volume change of the first and second cavities caused by vibration of the first diaphragm;
• and
• a manifold, which is elongated, including
• first and second inner passages that are adjacent to each other,
• a first plurality of injection ports for the first inner passage, and
• a second plurality of injection ports for the second inner passage, wherein
• the first plurality of injection ports are at different positions along an axis in which the manifold is elongated, or have different injection angles, than the second plurality of injection ports, and
• the first inner passage communicates with the first cavity through the first orifice to receive the pulsed jet generated in the first orifice, and generates a plurality of pulsed jets that are output through the first plurality of injection ports, and
• the second inner passage communicates with the second cavity through the second orifice to receive the pulsed jet generated in the second orifice, and generates a plurality of pulsed jets that are output through the second plurality of injection ports,
• so that the manifold thereby generates multi-pulsed jets which are output through the first and second plurality of injection ports.