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1. 发明申请

US20210115913A1 FLOW REGULATING VALVE AND COMPRESSOR 有权
公开(公告)号：US20210115913A1
公开(公告)日：2021-04-22
申请号：US17060326
申请日：2020-10-01
申请人： Danfoss (Tianjin) Ltd.
发明人： Lixin Han , Xiaodong Wang , Kun Qian , Haiyun Ma , Wenhu Yao , Yanbo Zhao , Kang Zheng
IPC分类号： F04B49/22 , F04D27/00 , F16K15/06
摘要： A flow regulating valve and a compressor with the flow regulating valve are disclosed. The flow regulating valve includes: a valve seat in which a passage is formed to allow fluid to enter; a guide member protruded outwards from the valve seat; a piston which is disposed on the outside of the valve seat, forms a fluid inlet with the valve seat, and is capable of being reciprocated along the guide member; and a biasing member biasing the piston in a direction away from the valve seat. A force exerted by the incoming fluid on the piston is opposite in direction to a biasing force exerted by the biasing member on the piston. The piston is able to be moved to different positions under the action of different forces to form fluid inlets of different widths with the valve seat, thereby controlling the mass flow rate of the incoming fluid (especially liquid). With the technical solutions of the present invention, the flow rate of the fluid entering the compressor can be effectively adjusted with a simple structure and low cost.

2. 发明申请

US20210095666A1 SCROLL COMPRESSOR 有权
公开(公告)号：US20210095666A1
公开(公告)日：2021-04-01
申请号：US17032738
申请日：2020-09-25
申请人： Danfoss (Tianjin) Ltd.
发明人： Lin Ma , Wenhu Yao , Kun Qian , Bin Wang , Guillaume Rochet
IPC分类号： F04C18/02 , F25B1/04
摘要： A scroll compressor is disclosed. The scroll compressor includes an shell, a fixed scroll, a housing and an orbiting scroll. The fixed scroll and the housing are disposed in the shell and fixed relative to each other. An outer peripheral surface of the housing and an inner peripheral surface of the shell are fitted to each other. The orbiting scroll is disposed between the fixed scroll and the housing. The fixed scroll is formed therein with a first injection passage, the housing is formed therein with a second injection passage, a port of the first injection passage and a port of the second injection passage face each other, so that the first injection passage and the second injection passage communicate with each other. The scroll compressor further includes an injection tube assembly, the injection tube assembly is disposed in the shell. The injection tube assembly includes: a tube, and a first tube joint and a second tube joint respectively disposed at two ends of the tube, the first tube joint passes through the shell to communicate with the outside, and the second tube joint is inserted and fitted in the second injection passage.

3. 发明授权

US11408421B2 Scroll compressor 有权
公开(公告)号：US11408421B2
公开(公告)日：2022-08-09
申请号：US16666984
申请日：2019-10-29
申请人： Danfoss (Tianjin) Ltd.
发明人： Lin Ma , Wenhu Yao , Kun Qian , Bin Wang
IPC分类号： F04C15/00 , F04C18/02 , F04C27/00 , F04C27/02
摘要： The present invention discloses a scroll compressor. At least two shrink belts (23′, 23″, 26, 26′, 28, 28′) are provided around the outer periphery of said fixed scroll between the outer periphery of said fixed scroll (2) and the inner wall surface of the upper cap (1) of the scroll compressor. The at least two shrink belts are annular, and are in interference fit between the outer periphery of said fixed scroll and the inner wall surface of the upper cap. The at least two shrink belts include a main shrink belt (23′, 23″, 28) and an assistant shrink belt (26, 26′, 28′). The main shrink belt and the assistant shrink belt are arranged side by side in the axial direction, that is, in the vertical direction of the fixed scroll, and the main shrink belt and the assistant shrink belt are spaced apart from each other by a distance. In this way, it is allowed to add other special structure (e.g., an additional fluid passage) to the fixed scroll, reduce the deformation of the fixed scroll, and improve the performance and the reliability of the scroll compressor.

4. 发明申请

US20210199111A1 SCROLL COMPRESSOR 有权
公开(公告)号：US20210199111A1
公开(公告)日：2021-07-01
申请号：US17132969
申请日：2020-12-23
申请人： Danfoss (Tianjin) Ltd.
发明人： Changqiao Bao , Kun Qian , Wenhu Yao , Xueyou Zhou , Gang Yao , Zaiwang Wang , Quanping Lei
IPC分类号： F04C2/02
摘要： Embodiments of the present disclosure provide a scroll compressor. The scroll compressor includes: a fixed scroll having an end plate and a fixed scroll wrap extending from the end plate; an orbiting scroll having an orbiting scroll wrap, the orbiting scroll wrap being engaged with the fixed scroll wrap to form a plurality of compression chambers for compressing a medium; a channel formed in the end plate of the fixed scroll, the channel leading to one compression chamber of the plurality of compression chambers; and a valve provided on the end plate of the fixed scroll, and configured to open when a pressure in the one compression chamber is higher than a predetermined pressure threshold so as to allow the medium in the one compression chamber to flow out of the one compression chamber through the channel. The scroll compressor according to the embodiments of the present disclosure, for example, can improve the performance of the scroll compressor.

5. 发明授权

US11371504B2 Scroll compressor 有权
公开(公告)号：US11371504B2
公开(公告)日：2022-06-28
申请号：US17032738
申请日：2020-09-25
申请人： Danfoss (Tianjin) Ltd.
发明人： Lin Ma , Wenhu Yao , Kun Qian , Bin Wang , Guillaume Rochet
IPC分类号： F04C18/02 , F04C29/00 , F04C29/04
摘要： A scroll compressor is disclosed. The scroll compressor includes an shell, a fixed scroll, a housing and an orbiting scroll. The fixed scroll and the housing are disposed in the shell and fixed relative to each other. An outer peripheral surface of the housing and an inner peripheral surface of the shell are fitted to each other. The orbiting scroll is disposed between the fixed scroll and the housing. The fixed scroll is formed therein with a first injection passage, the housing is formed therein with a second injection passage, a port of the first injection passage and a port of the second injection passage face each other, so that the first injection passage and the second injection passage communicate with each other. The scroll compressor further includes an injection tube assembly, the injection tube assembly is disposed in the shell. The injection tube assembly includes: a tube, and a first tube joint and a second tube joint respectively disposed at two ends of the tube, the first tube joint passes through the shell to communicate with the outside, and the second tube joint is inserted and fitted in the second injection passage.

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