公开(公告)号：US20140109373A1

公开(公告)日：2014-04-24

申请号：US14138345

申请日：2013-12-23

Applicant: DENSO AIR SYSTEMS CORPORATION ,  DENSO CORPORATION

Inventor： Fumiaki NAKAMURA ,  Yoshiaki TAKANO ,  Shun KURATA ,  Takahisa SUZUKI ,  Takashi ONO ,  Hiroki NAGANAWA ,  Kinji OCHIAI ,  Hiroki OHARA

IPC: B23P17/02

CPC classification number: B23P17/02 ,  F16L7/00 ,  F16L9/18 ,  F25B40/00 ,  F28D7/106 ,  F28F1/06 ,  F28F1/42 ,  F28F1/426 ,  F28F2210/06 ,  Y10T29/49361 ,  Y10T29/49428 ,  Y10T29/49826

Abstract: A double-wall pipe includes an outer pipe, and an inner pipe disposed inside the outer pipe. An outer wall of the inner pipe has thereon a ridge portion, which defines a groove portion extending in a longitudinal direction of the inner pipe. The outer pipe and the inner pipe are bent to have a straight portion extending straightly, and a bend portion bent from the straight portion. In the straight portion, the outer pipe has an inside diameter that is larger than an outside diameter of an imaginary cylinder defined by an outer surface of the ridge portion of the inner pipe. Furthermore, the ridge portion of the inner pipe contacts an inside surface of the outer pipe to be radially squeezed and held by the outer pipe, in the bend portion. The double-wall pipe can be suitably used for a refrigerant cycle device.

Abstract translation: 双壁管包括外管和设置在外管内的内管。 内管的外壁具有脊部，该脊部限定在内管的纵向方向上延伸的槽部。 外管和内管弯曲成具有直线延伸的直线部分和从直线部分弯曲的弯曲部分。 在直线部分中，外管的内径大于由内管的脊部的外表面限定的假想气缸的外径。 此外，内管的脊部与外管的内表面接触，由外管径向挤压并保持在弯曲部。 双壁管可以适用于制冷剂循环装置。

公开(公告)号：US20190152298A1

公开(公告)日：2019-05-23

申请号：US16242029

申请日：2019-01-08

Applicant: DENSO CORPORATION

Inventor： Shun KURATA ,  Yoshiharu ENDO ,  Takahiro SUZUKI ,  Takeshi MIYAMOTO

IPC: B60H1/32 ,  F25B1/00

Abstract: A vehicle air conditioning device includes a compressor and a controller. The controller is configured to set an upper limit value of the rotation speed of the compressor based on a combination of whether the speed of the vehicle is lower than a predetermined speed and whether a rotation speed of a fan device for a condenser is lower than a predetermined rotation speed.

公开(公告)号：US20180201093A1

公开(公告)日：2018-07-19

申请号：US15743867

申请日：2016-08-26

Applicant: DENSO CORPORATION

Inventor： Asuka MARUMO ,  Shun KURATA

IPC: B60H1/00 ,  B60H1/12

Abstract: A vehicle air conditioner includes a bypass passage configured to cause a coolant to circulate while bypassing a heater core, a switching device set to switch between a first mode in which the coolant flows through the bypass passage and returns to an internal combustion engine while bypassing the heater core and a second mode in which the coolant flows to the heater core, a coolant-temperature sensor that detects a temperature of the coolant at a part through which the coolant flows in both the first mode and the second mode, and a control unit that controls an operation of a blower based on the coolant-temperature control data. Furthermore, first and second calculating portions are configured to calculate the coolant-temperature control data in the first and second modes, respectively. The first calculating portion calculates the coolant-temperature control data based on the temperature of the coolant detected at start-up of the internal combustion engine, and the second calculating portion sets, as the coolant-temperature control data, a temperature lower than the detected temperature of the coolant.

公开(公告)号：US20170232821A1

公开(公告)日：2017-08-17

申请号：US15502606

申请日：2015-08-07

Applicant: DENSO CORPORATION

Inventor： Hiroshi KATAOKA ,  Shun KURATA ,  Isamu TAKASUGI ,  Haruyuki NISHIJIMA ,  Youhei NAGANO ,  Yoshiyuki YOKOYAMA

IPC: B60H1/32

CPC classification number: B60H1/3204 ,  B60H2001/3291 ,  B60H2001/3297 ,  B60H2001/3298 ,  F04B41/06 ,  F04F5/46 ,  F25B6/04 ,  F25B41/00 ,  F25B2341/0012

Abstract: An ejector-type refrigeration cycle includes an ejector module integrated with a gas-liquid separation device. A length of an inlet pipe that connects a liquid-phase refrigerant outflow port of an ejector module to a refrigerant inflow port of an evaporator is shorter than a length of a suction pipe that connects a gas-phase refrigerant outflow port of the ejector module to a suction port of the compressor.

公开(公告)号：US20170225543A1

公开(公告)日：2017-08-10

申请号：US15502579

申请日：2015-08-07

Applicant: DENSO CORPORATION

Inventor： Shun KURATA ,  Yoshiyuki YOKOYAMA ,  Youhei NAGANO ,  Haruyuki NISHIJIMA ,  Isamu TAKASUGI ,  Hiroshi KATAOKA

IPC: B60H1/32

CPC classification number: B60H1/3204 ,  B60H1/3211 ,  B60H1/323 ,  B60H2001/325 ,  B60H2001/3285 ,  B60H2001/3297 ,  B60H2001/3298 ,  F25B6/04 ,  F25B41/00 ,  F25B2341/0012

Abstract: An ejector-type refrigeration cycle includes an ejector module integrated with a gas-liquid separation device. A length of a suction pipe that connects a gas-phase refrigerant outflow port of the ejector module to a suction port of a compressor is set to be shorter than a length of an outlet pipe that connects a refrigerant outflow port of an evaporator to a refrigerant suction port of the ejector module. A pressure loss that occurs when a refrigerant flows in the suction pipe may be set to be lower than a pressure loss that occurs when the refrigerant flows in an outlet pipe.