-
公开(公告)号：US20250012518A1
公开(公告)日：2025-01-09
申请号：US18886515
申请日：2024-09-16
Applicant: DENSO CORPORATION
Inventor： Junki HIRAYAMA , Toru OKAMURA , Naoya MAKIMOTO , Hiroaki KAWANO , Naito MUTO , Yoshiki KATO
Abstract: A composite heat exchanger is used in a vapor compression refrigeration cycle. The vapor compression refrigeration cycle includes: a compressor; a decompressor configured to decompress a high-pressure refrigerant discharged from the compressor; and an evaporator configured to evaporate a low-pressure refrigerant decompressed at the decompressor by exchanging heat between the low-pressure refrigerant and a first heat medium. The composite heat exchanger includes a condenser unit, a liquid storage unit temporarily storing a high-pressure liquid refrigerant, a sub-cooler unit sub-cooling the high-pressure liquid refrigerant through heat exchange with a second heat medium, and an internal heat exchanger unit exchanging heat between the high-pressure liquid refrigerant passed through the sub-cooler unit and the low-pressure refrigerant. The condenser unit, the sub-cooler unit and the internal heat exchanger unit are joined together by a predetermined binding element and thereby form an integral structure.
-
公开(公告)号：US20230219398A1
公开(公告)日：2023-07-13
申请号：US18185204
申请日：2023-03-16
Applicant: DENSO CORPORATION
Inventor： Toru OKAMURA , Atsushi YAMADA , Yoshiki KATOH , Hiroaki KAWANO
CPC classification number: B60H1/22 , B60H1/3228
Abstract: A refrigeration cycle device includes a flow path switching unit configured to determine whether an outside-air heat absorption unit is required to be defrosted. The flow path switching unit is further configured to: cause a heat medium to circulate separately between a first circulation circuit configured to cause the heat medium to circulate through a heat source and a second circulation circuit configured to cause the heat medium to circulate between an evaporation unit and the outside-air heat absorption unit, when it is determined that the outside-air heat absorption unit is not required to be defrosted; and switch a flow path of the heat medium to cause the heat medium in the first circulation circuit to circulate through the outside-air heat absorption unit, when it is determined that the outside-air heat absorption unit is required to be defrosted.
-
公开(公告)号：US20240426523A1
公开(公告)日：2024-12-26
申请号：US18824748
申请日：2024-09-04
Applicant: DENSO CORPORATION
Inventor： Junki HIRAYAMA , Toru OKAMURA , Naoya MAKIMOTO , Hiroaki KAWANO , Naito MUTO , Yoshiki KATO
Abstract: A refrigeration cycle device includes a compressor, a radiator, a first decompression unit, a first evaporator, a second decompression unit, and a second evaporator. A refrigerant joining portion joins refrigerant having passed through the first evaporator and the second evaporator, on a refrigerant suction side of the compressor. The first decompression unit regulates a degree of superheating of the refrigerant between the first evaporator and the refrigerant joining portion on the basis of a first physical quantity having a correlation with the degree of superheating of the refrigerant flowing between the first evaporator and the refrigerant joining portion. The second decompression unit regulates a degree of superheating of the refrigerant between the refrigerant joining portion and the compressor on the basis of a second physical quantity having a correlation with the degree of superheating of the refrigerant flowing between the refrigerant joining portion and the compressor.
-
公开(公告)号：US20210316594A1
公开(公告)日：2021-10-14
申请号：US17354591
申请日：2021-06-22
Applicant: DENSO CORPORATION
Inventor： Hiroaki KAWANO , Yoshiki KATO , Masamichi MAKIHARA , Takahiro MAEDA , Kuniyoshi TANIOKA , Toru OKAMURA , Naoya MAKIMOTO
Abstract: A vehicular air conditioner includes a refrigeration cycle system, a high-temperature heat medium circuit, and a low-temperature heat medium circuit. The high-temperature heat medium circuit includes an air-heat medium heat exchanger, a heater core, a branching portion, a common passage, a flow rate adjuster, and an auxiliary heat source. The air-heat medium heat exchanger exchanges heat between the heat medium and an outside air. The heater core is arranged parallel to the air-heat medium heat exchanger and causes the heat medium to transfer heat to a ventilation air. The branching portion divides a flow of the heat medium into a flow toward the air-heat medium heat exchanger and a flow toward the heater core. The auxiliary heat source is arranged in the common passage at a position upstream of the branching portion.
-
公开(公告)号：US20220009309A1
公开(公告)日：2022-01-13
申请号：US17484538
申请日：2021-09-24
Applicant: DENSO CORPORATION
Inventor： Koji MIURA , Hiroaki KAWANO , Motohiro YAMAGUCHI , Kazuya TANIGUCHI , Yoshiki KATO , Masamichi MAKIHARA , Takahiro MAEDA , Kuniyoshi TANIOKA , Toru OKAMURA , Naoya MAKIMOTO
IPC: B60H1/00
Abstract: A refrigeration cycle device includes a heat pump cycle, a high-temperature heat medium circuit, and a low-temperature heat medium circuit. The low-temperature heat medium circuit includes a plurality of heat absorption devices configured to have a heat absorption amount to be absorbed by the low-temperature heat medium flowing out of a low-temperature heat medium-refrigerant heat exchanger, and a heat absorption adjusting unit configured to change the heat absorption amount of the low-temperature heat medium in the respective heat absorption devices. In the refrigeration cycle device, a flow amount of the refrigerant flowing into the low-temperature heat medium-refrigerant heat exchanger is reduced when the heat absorption adjusting unit changes the heat absorption amount of the low-temperature heat medium in the respective heat absorption devices, and the flow amount of the refrigerant flowing into the low-temperature heat medium-refrigerant heat exchanger is increased when a recovery condition is satisfied.
-
Patent Agency Ranking
公开(公告)号：US20180252145A1
公开(公告)日：2018-09-06
申请号：US15905942
申请日：2018-02-27
Applicant: DENSO CORPORATION
Inventor： Toru OKAMURA , Kenichi NARA
CPC classification number: F01P7/16 , F01P11/04 , F01P11/16 , F01P2007/146 , F01P2060/16 , F02M26/32
Abstract: The exhaust gas recirculation system comprises an exhaust recirculation pipe configured to recirculate an exhaust gas from an engine into an intake pipe of the engine, an exhaust gas heat exchanger connected to the exhaust recirculation pipe and configured to perform an heat exchange between the exhaust gas and an engine cooling water used for cooling the engine, a cooling water pipe configured to circulate the engine cooling water to the exhaust gas heat exchanger, and a heat insulating member forming a heat insulating layer on a heat transfer path from the exhaust gas heat exchanger to the outside.
-
公开(公告)号：US20180023453A1
公开(公告)日：2018-01-25
申请号：US15651268
申请日：2017-07-17
Applicant: DENSO CORPORATION
Inventor： Toru OKAMURA , Kenichi NARA , Kuniyoshi TANIOKA
CPC classification number: F01P7/165 , F01P7/167 , F01P11/20 , F01P2011/205 , F01P2025/50 , F01P2025/52 , F01P2060/18 , G01K13/02 , G01K2013/026 , G01M15/048
Abstract: A warm-up device is provided in a cooling-water circuit, through which cooling water is circulated so as to pass through an engine. The warm-up device has a heat accumulating passage, in which a heat accumulating device is provided, and an accumulating-device bypassing passage bypassing the heat accumulating device. A waste-heat collecting device is provided in the cooling-water circuit so that heat is collected from exhaust gas from the engine and such collected heat is accumulated in the heat accumulating device. The cooling water is circulated through the heat accumulating device during a start-up operation of the engine in order to heat the cooling water flowing into the engine so as to quickly warm up the engine.
-
公开(公告)号：US20220178624A1
公开(公告)日：2022-06-09
申请号：US17680735
申请日：2022-02-25
Applicant: DENSO CORPORATION
Inventor： Takuya FUSE , Toru OKAMURA , Kuniyoshi TANIOKA
Abstract: A heat storage device includes a heat storage, a first flow passage, a second flow passage and a flow rate regulator. The heat storage stores heat released from coolant. The first flow passage is placed in a circulation path that conducts the coolant. The heat storage is installed in the first flow passage. The second flow passage conducts the coolant and bypasses the heat storage. The flow rate regulator adjusts a flow rate ratio that is a ratio of a second flow rate of the coolant, which flows in the second flow passage, relative to a first flow rate of the coolant, which flows in the first flow passage. The flow rate regulator reduces the first flow rate when a temperature of the coolant is decreased.
-
公开(公告)号：US20220011006A1
公开(公告)日：2022-01-13
申请号：US17484513
申请日：2021-09-24
Applicant: DENSO CORPORATION
Inventor： Koji MIURA , Hiroaki KAWANO , Motohiro YAMAGUCHI , Kazuya TANIGUCHI , Yoshiki KATO , Masamichi MAKIHARA , Takahiro MAEDA , Kuniyoshi TANIOKA , Toru OKAMURA , Naoya MAKIMOTO , Atsushi YAMADA , Kenta KAYANO
Abstract: An air conditioner includes a heat pump cycle, a heating unit, a low-temperature side heat medium circuit, and a heat dissipation amount adjustment control unit. The heat pump cycle has a compressor, a condenser, a decompression unit, and an evaporator. The heating unit has a heating heat exchanger, an outside air radiator, and a heat dissipation amount adjustment unit. The low-temperature side heat medium circuit has a heat generation device. The heat dissipation amount adjustment control unit controls the heat dissipation amount adjustment unit to adjust a heat dissipation amount in the outside air radiator such that a blown air temperature of the blown air heated by the heating heat exchanger approaches a predetermined target temperature.
-
公开(公告)号：US20210316597A1
公开(公告)日：2021-10-14
申请号：US17354663
申请日：2021-06-22
Applicant: DENSO CORPORATION
Inventor： Toru OKAMURA
Abstract: A temperature adjusting device includes a heat radiation portion and a refrigeration cycle device. The heat radiation portion radiates heat of a target object to outside air. The refrigeration cycle device has a condenser and an evaporator. The condenser condenses a high-pressure refrigerant discharged from a compressor that compresses and discharges a refrigerant. The evaporator evaporates a low-pressure refrigerant pressure-reduced in a pressure reducing portion that reduces a pressure of the high-pressure refrigerant. The condenser radiates heat of the high-pressure refrigerant to at least part of the outside air that has passed through the heat radiation portion. The heat radiation portion radiates the heat of the target object to the outside air before heat of the outside air is absorbed in the condenser.
-
-
-
-
-
-
-
-
-
Search Results
12
records
(took 0.014 seconds)
