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1. 发明公开

US20240230174A9 HERMETIC TYPE COMPRESSOR 审中-公开
公开(公告)号：US20240230174A9
公开(公告)日：2024-07-11
申请号：US18568020
申请日：2022-06-06
申请人： FUJITSU GENERAL LIMITED
发明人： Kenshi UEDA , Naoya MOROZUMI , Naoto TADA
IPC分类号： F25B31/02 , F04C23/00 , F04C29/12
CPC分类号： F25B31/026 , F04C23/008 , F04C29/12
摘要： A compressor main body container includes a main shell having a vertical cylindrical shape, a top shell having a cup shape, and a bottom shell having a cup shape, and an interior portion of the main shell is hermetically sealed by securing an opening side of the top shell to an upper end portion of the main shell at a first welded portion by welding, and securing an opening side of the bottom shell to a lower end portion of the main shell at a second welded portion by welding. The accumulator container includes an accumulator shell having a cup shape, and an interior portion of the accumulator shell is hermetically sealed by securing an opening side of the accumulator shell to an opposite opening side of the bottom shell at a third welded portion by welding at a position lower than a position of the second welded portion in the compressor main body container.

2. 发明申请

US20210270271A1 COMPRESSOR 有权
公开(公告)号：US20210270271A1
公开(公告)日：2021-09-02
申请号：US17259024
申请日：2019-07-09
申请人： FUJITSU GENERAL LIMITED
发明人： Kenshi UEDA , Akira INOUE
IPC分类号： F04C29/02 , F04B39/04 , F04C25/02 , H02K1/20 , H02K1/32 , H02K21/16
摘要： A compressor includes a motor unit that includes a rotor and a stator, a compressor unit that compresses a refrigerant by rotation of the rotor, and a container that forms an internal space in which the motor unit and the compressor unit are housed, wherein in the rotor, a rotor gas passage through which the refrigerant flows from an under-motor space of the internal space arranged on a side of the motor unit that is close to the compressor unit to an above-motor space of the internal space arranged on a side of the motor unit that is distant from the compressor unit is formed, in the stator, a stator gas passage through which the refrigerant flows from the under-motor space to the above-motor space is formed, and a cross-sectional area of the stator gas passage is 6.0 times or less a cross-sectional area of the rotor gas passage.

3. 发明申请

US20180135632A1 ROTARY COMPRESSOR 审中-公开
公开(公告)号：US20180135632A1
公开(公告)日：2018-05-17
申请号：US15812822
申请日：2017-11-14
申请人： FUJITSU GENERAL LIMITED
发明人： Yasuyuki IZUMI , Kenshi UEDA
IPC分类号： F04C29/12 , F04C18/356 , F04C23/00
CPC分类号： F04C29/124 , F04C18/356 , F04C23/00 , F04C23/001 , F04C28/02 , F04C29/06 , F04C29/12 , F04C2240/30 , F04C2240/806 , F04C2250/102
摘要： In a rotary compressor, S1>S3, S2>S3, and S2′>S3′ are satisfied when a sectional area of a refrigerant path hole on a lower endplate is S1, a sectional area of the refrigerant path hole in a lower cylinder is S2, a sectional area of the refrigerant path hole on an intermediate partition plate is S3, an area in which a section of the refrigerant path hole on the lower end plate and a section of the refrigerant path hole in the lower cylinder overlap each other is S2′, and an area in which a section of the refrigerant path hole in the lower cylinder and a section of the refrigerant path hole on the intermediate partition plate overlap each other is S3′.

4. 发明申请

US20210013756A1 COMPRESSOR 有权
公开(公告)号：US20210013756A1
公开(公告)日：2021-01-14
申请号：US16980625
申请日：2019-04-17
申请人： FUJITSU GENERAL LIMITED
发明人： Shingo YAHABA , Kenshi UEDA , Tomoki NISHIO
IPC分类号： H02K1/32 , H02K1/27 , H02K1/28 , H02K9/19 , F25B31/00
摘要： A rotor that gives rotational power to a compressor part that compresses refrigerant has a rotor core in which through-holes through which the refrigerant passes are formed, the through-holes having a cross section with a plurality of forks in a direction away from a rotation axis, a first end plate that covers a first end surface where one end of both end portions of the through-holes of the rotor core closer to the compressor part is formed, and an upper rotor end plate that covers a lower rotor end surface where the other end of the plurality of holes of the rotor core is formed. The first end plate has a first opening portion that causes the through-holes to communicate with an internal space. The upper rotor end plate has an upper opening portion that causes the through-holes to communicate with the internal space. The upper rotor end plate has projection portions that cover tip end portions, which are divided to respective forks, of the through-holes.

5. 发明申请

US20200208634A1 ROTARY COMPRESSOR 审中-公开
公开(公告)号：US20200208634A1
公开(公告)日：2020-07-02
申请号：US16633049
申请日：2018-07-20
申请人： FUJITSU GENERAL LIMITED
发明人： Kenshi UEDA , Yasuyuki IZUMI
IPC分类号： F04C23/00 , F04C18/356 , F04C29/12
摘要： In a rotary compressor, a lower end plate includes a lower discharge valve that opens and closes a lower discharge hole, a lower discharge-valve accommodating recessed portion in which the lower discharge valve is accommodated, and a lower discharge-chamber recessed portion that is formed so as to overlap with the lower discharge hole side of the lower discharge-valve accommodating recessed portion and communicates with a refrigerant passage hole. A lower end plate cover is formed in a flat-plate shape and is provided with a bulging portion having a portion facing the lower discharge hole. An upper end-plate cover chamber is formed by the lower discharge-valve accommodating recessed portion, the lower discharge-chamber recessed portion, and the bulging portion. The bulging portion has a volume of 1/18 or greater and 1/9 or less of a total of air volumes of an upper compression chamber and a lower compression chamber.

6. 发明申请

US20180135630A1 ROTARY COMPRESSOR 审中-公开
公开(公告)号：US20180135630A1
公开(公告)日：2018-05-17
申请号：US15806193
申请日：2017-11-07
申请人： FUJITSU GENERAL LIMITED
发明人： Shingo YAHABA , Akira INOUE , Kenshi UEDA , Yasuyuki IZUMI
IPC分类号： F04C18/356 , F04C29/02 , F04C27/00 , F04C29/12 , F04C23/00
CPC分类号： F04C18/3564 , F04C18/3568 , F04C23/001 , F04C23/008 , F04C27/005 , F04C29/028 , F04C29/12 , F04C2240/809
摘要： In a rotary compressor, a refrigerant path hole communicates with a lower discharge chamber concave portion while at least a part thereof overlaps the lower discharge chamber concave portion, is positioned between a lower vane groove and a first insertion hole in a lower cylinder, and is configured of a plurality of holes which are disposed between the upper vane groove and the first insertion hole in the upper cylinder, and a sectional area of a cross section which is closest to the lower vane groove and the upper vane groove of the plurality of holes is the smallest compared to the sectional area of the cross section of the other holes.

7. 发明公开

US20240309871A1 HERMETIC TYPE COMPRESSOR 审中-公开
公开(公告)号：US20240309871A1
公开(公告)日：2024-09-19
申请号：US18577104
申请日：2022-06-30
申请人： FUJITSU GENERAL LIMITED
发明人： Koji UKAI , Kenshi UEDA , Naoto TADA , Ryo AKIMOTO , Tatsuya YASUI , Yudai MORITA
IPC分类号： F04C29/12 , F04C29/04
CPC分类号： F04C29/12 , F04C29/04
摘要： A hermetic type compressor includes: a compressor main-body container that has a vertically cylindrical shape, and that has a discharge pipe and a suction pipe for a refrigerant; an accumulator container that is connected to the suction pipe; a compression section that is disposed in the compressor main-body container, that compresses the refrigerant sucked from the accumulator container via the suction pipe, and that discharges the compressed refrigerant from the discharge pipe; and a motor that is disposed inside the compressor main-body container, and that drives the compression section. In the hermetic type compressor, the accumulator container includes a cup shape accumulator shell that has the opening side thereof bonded to the compressor main-body container. The hermetic type compressor further includes: a leg member that is fixed to the outer periphery of the compressor main-body container housing, and that supports the compressor main-body container and the accumulator container; and an elastic body that supports the leg member.

8. 发明申请

US20200173439A1 ROTARY COMPRESSOR 审中-公开
公开(公告)号：US20200173439A1
公开(公告)日：2020-06-04
申请号：US16631659
申请日：2018-04-17
申请人： FUJITSU GENERAL LIMITED
发明人： Kenshi UEDA , Yasuyuki IZUMI
IPC分类号： F04C23/00 , F04C18/356 , F04C29/12 , F04C29/04
摘要： A compression part of a rotary compressor includes an intermediate partition plate that is arranged between an upper cylinder and a lower cylinder, an upper vane that sections an upper cylinder chamber formed within the upper cylinder into an upper suction chamber and an upper compression chamber, and a lower vane that sections a lower cylinder chamber formed within the lower cylinder into a lower suction chamber and a lower compression chamber. The intermediate partition plate is formed with an injection hole that injects a liquid refrigerant into the upper compression chamber and the lower compression chamber and an injection passage that supplies the liquid refrigerant to the injection hole. The injection passage is formed along a straight line that does not cross a rotary shaft insertion hole into which a rotary shaft is inserted.

9. 发明申请

US20170292520A1 ROTARY COMPRESSOR 审中-公开
公开(公告)号：US20170292520A1
公开(公告)日：2017-10-12
申请号：US15479483
申请日：2017-04-05
申请人： FUJITSU GENERAL LIMITED
发明人： Kenshi UEDA , Akira INOUE , Naoya MOROZUMI , Yasuyuki IZUMI
IPC分类号： F04C29/12 , F04C29/00 , F04C18/356
CPC分类号： F04C29/12 , F04C18/3562 , F04C18/3564 , F04C23/001 , F04C23/008 , F04C29/0007 , F04C29/0085 , F04C2240/30 , F04C2240/60 , F04C2240/804 , F04C2240/806
摘要： A compressor includes: an annular cylinder; a rotation shaft which is rotated by the motor; a piston which revolves along an inner circumferential surface of the cylinder, and forms a cylinder chamber on the inside of the cylinder; a vane which protrudes to the inside of the cylinder chamber from a vane groove provided in the cylinder, and divides the cylinder chamber into an inlet chamber and a compression chamber by abutting against the piston; and an injection hole which injects a liquid refrigerant to the inside of the compression chamber. The center of the injection hole is disposed to be within a fan-like range of which a center angle is equal to or less than 40° toward a side opposite to a connection position between the compressor housing and the inlet unit from a center line of the vane groove in the circumferential direction of the rotation shaft.

10. 发明公开

US20240271607A1 HERMETIC TYPE COMPRESSOR 审中-公开
公开(公告)号：US20240271607A1
公开(公告)日：2024-08-15
申请号：US18681094
申请日：2022-03-29
申请人： FUJITSU GENERAL LIMITED
发明人： Tatsuya YASUI , Kenshi UEDA , Koji UKAI , Naoto TADA , Ryo AKIMOTO , Yudai MORITA
IPC分类号： F04B39/12 , F04B39/06
CPC分类号： F04B39/12 , F04B39/06
摘要： A hermetic type compressor (1) includes a compressor main body container (10) that is a vertical type having a cylindrical shape, and that is provided with a discharge pipe (107) and a suction pipe (104) for a refrigerant, an accumulator container (25) that is connected to the suction pipe (104), a compression section (12) that is arranged inside the compressor main body container (10), that compresses the refrigerant, which has been sucked from the accumulator container (25) by way of the suction pipe (104), and that discharges the compressed refrigerant from the discharge pipe (107), and a motor (11) that is arranged inside the compressor main body container (10) and that drives the compression section (12). The accumulator container (25) includes an accumulator shell (26) having a cup shape, and in which an opening side (28b) of the accumulator shell (26) is bonded to the compressor main body container (10). A partition member (28), which partitions an interior portion of the accumulator shell (26), is provided in the interior portion, and a thermal insulation section (35), which includes an interior portion space (35a) having a hollow structure that blocks a heat transfer from the compressor main body container (10) to the accumulator container (25), is formed between the partition member (28) and a bottom shell (26) that is included in the compressor main body container (10).

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