公开(公告)号：US20170045269A1

公开(公告)日：2017-02-16

申请号：US15304667

申请日：2015-05-18

Applicant: DENSO CORPORATION

Inventor： Gouta OGATA ,  Yuichi SHIROTA ,  Hiroya HASEGAWA ,  Tatsuhiro SUZUKI

IPC: F25B1/06 ,  F25B41/06 ,  F25B5/02

CPC classification number: F25B1/06 ,  F25B1/00 ,  F25B5/02 ,  F25B40/00 ,  F25B41/00 ,  F25B41/067 ,  F25B2341/0011

Abstract: In an ejector refrigeration cycle, an inlet of a nozzle portion of an ejector is connected to a refrigerant outlet side of a high-stage side evaporator, a refrigerant suction port of the ejector is connected to a refrigerant outlet side of a low-stage side evaporator, and an internal heat exchanger is provided for exchanging heat between a high-pressure refrigerant flowing into a low-stage side throttle device for decompressing the refrigerant flowing into the low-stage side evaporator, and a low-stage side low-pressure refrigerant flowing out of the low-stage side evaporator. Because a difference in enthalpy between the inlet and outlet of the low-stage side evaporator can be enlarged, the cooling capacities exhibited by the respective evaporators can be adjusted to be closer to each other even if the flow-rate ratio Ge/Gn of the suction refrigerant flow rate Ge to the injection refrigerant flow rate Gn is set to a relatively small value so as to make it possible to improve the COP of the cycle.

Abstract translation: 在喷射器制冷循环中，喷射器的喷嘴部分的入口连接到高级侧蒸发器的制冷剂出口侧，喷射器的制冷剂吸入口连接到低级侧的制冷剂出口侧 蒸发器和内部热交换器，用于在流入低级侧节流装置的高压制冷剂之间进行热交换，用于减压流入低级侧蒸发器的制冷剂和低级侧低压制冷剂 流出低压侧蒸发器。 由于可以扩大低级侧蒸发器的入口和出口之间的焓差，所以即使各个蒸发器的流量比Ge / Gn相对于各蒸发器的冷却能力也可以相互调整， 将吸入制冷剂流量Ge与喷射制冷剂流量Gn设定为相对较小的值，从而能够提高循环的COP。

公开(公告)号：US20150330671A1

公开(公告)日：2015-11-19

申请号：US14651498

申请日：2013-11-28

Applicant: DENSO CORPORATION

Inventor： Tatsuhiro SUZUKI ,  Haruyuki NISHIJIMA ,  Etsuhisa YAMADA

IPC: F25B1/06 ,  F25B41/06 ,  F04F5/04 ,  F25B9/08

CPC classification number: F25B1/06 ,  F04F5/04 ,  F04F5/461 ,  F25B9/08 ,  F25B41/00 ,  F25B41/06 ,  F25B2341/001 ,  F25B2341/0012

Abstract: An ejector includes a body part having a depressurizing space in which a refrigerant flowing out of a swirling space is depressurized, a suction passage that draws a refrigerant from an external, and a pressurizing space in which the refrigerant from the depressurizing space is mixed with the refrigerant from the suction passage, a conical passage formation member that is arranged in the body part, and a driving device that displaces a nozzle body of the body part forming the depressurizing space. A nozzle passage is defined on an outer peripheral side of the passage formation member in the depressurizing space, a diffuser passage is formed on an outer peripheral side of the passage formation member in the pressurizing space, and an actuating bar that couples the driving device with the nozzle body is arranged without crossing the diffuser passage.

Abstract translation: 喷射器包括具有减压空间的主体部分，其中从旋转空间流出的制冷剂被减压，从外部吸入制冷剂的吸入通道和来自减压空间的制冷剂与压缩空间混合的加压空间 来自吸入通道的制冷剂，布置在主体部分中的锥形通道形成构件，以及驱动装置，其使形成减压空间的主体部分的喷嘴体移位。 喷嘴通道限定在减压空间中的通道形成构件的外周侧上，在加压空间中的通道形成构件的外周侧上形成有扩散通路，并且将驱动装置与 喷嘴体布置成不与扩散器通道交叉。

公开(公告)号：US20150316075A1

公开(公告)日：2015-11-05

申请号：US14443859

申请日：2013-11-13

Applicant: DENSO CORPORATION

Inventor： Daisuke NAKAJIMA ,  Haruyuki NISHIJIMA ,  Etsuhisa YAMADA ,  Hideya MATSUI ,  Kenta KAYANO ,  Yoshiyuki YOKOYAMA ,  Tatsuhiro SUZUKI

IPC: F04F5/46

CPC classification number: F04F5/46 ,  F25B41/003 ,  F25B41/062 ,  F25B2341/0012 ,  F25B2600/0253 ,  Y02B30/741

Abstract: An ejector includes (i) a body part including a depressurizing space in which a refrigerant flowing out of a swirling space is depressurized, a suction passage that draws a refrigerant from an external, and a pressurizing space in which a jet refrigerant jetted from the depressurizing space and a suction refrigerant drawn from the suction passage are mixed with each other to be pressurized, (ii) a conical passage formation member which is arranged inside the body part, and (iii) a swirling promotion part. A nozzle passage is provided in the depressurizing space on an outer peripheral surface of the passage formation member, and a diffuser passage is provided in the pressurizing space on the outer peripheral surface of the passage formation member. The swirling promotion part includes a flow regulation plate that promotes a swirling flow of the refrigerant flowing in the diffuser passage.

Abstract translation: 喷射器包括（i）主体部分，其包括减压空间，其中流出涡旋空间的制冷剂被减压，从外部抽取制冷剂的吸入通道和从减压喷射的喷射制冷剂的加压空间 空气和从吸入通道抽吸的吸入制冷剂彼此混合以加压，（ii）设置在主体部分内的锥形通道形成构件，和（iii）旋转促进部。 在通道形成构件的外周面上的减压空间设置有喷嘴通路，在通道形成构件的外周面上的加压空间设置有扩散通路。 旋转促进部包括促进在扩散器通路中流动的制冷剂的回旋流的流量调节板。