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公开(公告)号：US4560333A
公开(公告)日：1985-12-24
申请号：US577814
申请日：1984-02-07
申请人： Mitsuru Fujiwara , Taisuke Torigoe
发明人： Mitsuru Fujiwara , Taisuke Torigoe
CPC分类号： F04C18/088
摘要： A screw compressor having a recess formed in the high-pressure end surface of the casing. This recess receives the fluid from a closed working space which has just been isolated from the discharge port and closed in the compression step. Consequently, the abnormal pressure rise in the closed working space, which is caused due to the compression of the fluid confined, is completely eliminated. The recess has a configuration involving a curve conforming with the leading flank of the female rotor at the instant at which the working space is isolated from the discharge port and closed.
摘要翻译： 一种具有形成在壳体的高压端面中的凹部的螺杆式压缩机。 该凹部从刚刚从排出口隔离并在压缩步骤中关闭的封闭的工作空间接收流体。 因此，由于被限制的流体的压缩而导致的封闭工作空间中的异常压力上升被完全消除。 在工作空间与排出口隔离并关闭的时刻，凹部具有包括与母转子的前侧面相符的曲线。
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公开(公告)号：US1718535A
公开(公告)日：1929-06-25
申请号：US9871326
申请日：1926-03-31
申请人： ROTORITE CORP
发明人： CUTHBERT JOSEPH W
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公开(公告)号：US1637484A
公开(公告)日：1927-08-02
申请号：US71073024
申请日：1924-05-03
发明人： HOWARD HAPGOOD CYRUS
IPC分类号： F04C18/344 , F04C18/352 , F04C25/00
CPC分类号： F04C18/352 , F04C18/344 , F04C25/00
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公开(公告)号：US20220325714A1
公开(公告)日：2022-10-13
申请号：US17753381
申请日：2019-09-30
发明人： Hugo BEBON , Nathan PROD'HOMME
摘要： A method for controlling the rotational speed (S) of an electric motor driven air compressor (2) that supplies compressed air to a pneumatically operated system (5) of a vehicle (1), characterized by the preliminary steps of: a) determining the efficiency (e) of the air compressor (2) for different values (Si) of the rotational speed (S) of the air compressor (2), the efficiency (e) of the air compressor (2) corresponding to the ratio between the pneumatic power (PI) produced by the air compressor (2) and the power (PO) given to the air compressor (2); b) determining one or several specific values (S2, S4) among said different values (Si), for which the efficiency (e) of the air compressor (2) is higher than a threshold value (emin) and/or comparatively higher than those determined for values (SI, S3) close to said specific value(s) (S2, S4); the preliminary steps a) and b) being preferably implemented only once; and characterized by the further repetitive steps of: c) determining the air consumption rate of the pneumatically operated system (5) receiving compressed air from the air compressor (2); d) determining a minimum rotational speed (Smin) of the air compressor (2) to obtain an air production rate of the air compressor (2) that is equal or substantially equal to said determined air consumption rate; e) determining if the specific value or one of the specific values (S2, S4) is greater than said determined minimum rotational speed (Smin); f) if no specific value is greater than said determined minimum rotational speed (Smin), controlling the rotational speed (S) of the air compressor (2) based on said minimum rotational speed (Smin); g) if only one specific value (S4) is greater than said determined minimum rotational speed (Smin), controlling the rotational speed (S) of the air compressor (2) based on said only one specific value (S4); h) if a plurality of specific values (S2, S4) is greater than said determined minimum rotational speed (Smin), determining the specific value (S2) with the best efficiency among said plurality of specific values (S2, S4) and controlling the rotational speed (S) of the air compressor (2) based on said specific value (S2) with the best efficiency.
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公开(公告)号：US20220145885A1
公开(公告)日：2022-05-12
申请号：US17525133
申请日：2021-11-12
摘要： A positive displacement roots blower can include a housing having an inlet structured to receive an incoming flow of a fluid, an outlet structured to receive an outgoing flow of the fluid, and a passage. The positive displacement roots blower can also include a pair of intermeshed rotating members supported for complementary rotation within the housing, where the rotating members and the housing form respective operating volumes there between which rotate with the rotating members. Each of the respective operating volumes has the following regions: (1) open to inlet/closed to outlet; (2) closed to inlet/closed to outlet; and (3) closed to inlet/open to outlet. The passage includes a restriction and connects to at least one of the operating volumes when the at least one of the respective operating volumes is in region (2). The restriction can be a venturi feedback connecting to the outlet.
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公开(公告)号：US11313593B2
公开(公告)日：2022-04-26
申请号：US15560407
申请日：2015-05-27
发明人： Hideaki Maeyama
IPC分类号： F25B9/00 , F04C18/344 , F25B1/02 , F04C29/04 , F25B1/053 , F25B1/04 , F04C23/00 , F25B13/00 , F04C25/00 , F04C18/356 , C09K5/04 , F04C28/28
摘要： A compressor 12 for use in a refrigerant circuit 11 using a refrigerating machine oil 60 being free of phosphoric ester and a refrigerant mixture inclusive of 1,1,2-trifluoroetylene includes a rolling piston 32 and a vane 33 in contact with the rolling piston 32 in a slidable manner. The rolling piston 32 and the vane 33 are formed of a base metal, the base metal being steel, and the base metal is exposed at a contact portion between the rolling piston 32 and the vane 33.
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公开(公告)号：US11031149B1
公开(公告)日：2021-06-08
申请号：US16224179
申请日：2018-12-18
发明人： Alex Innes
摘要： Nuclear abrasive slurry waste pump systems, devices, and methods for retrieving waste materials and/or other material from storage tanks with liquefied tank material. The systems, devices and methods can work with tanks having high temperature conditions up to approximately 212 degrees Fahrenheit or low temperature conditions down to approximately 32 degrees Fahrenheit.
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18.发明授权公开(公告)号：US09200624B2
公开(公告)日：2015-12-01
申请号：US13988783
申请日：2011-11-16
申请人： Thierry Hilt
发明人： Thierry Hilt
CPC分类号： F04B7/00 , B60C23/04 , F04C18/023 , F04C23/02 , F04C25/00 , F04C2230/10 , F04C2240/401 , F04C2240/81 , F04C2270/15
摘要： A microsystem for converting pressure difference in fluid into mechanical displacement includes input and output nozzles, two interleaved parts, one of which is mobile part, between which the fluid flows. During displacement, the parts define an expanding fluid pocket that moves from the input nozzle to the output nozzle. The micro-system also includes top and bottom planes between which the mobile part is mounted for displacement relative to each plane, an overhanging distal portion along which the fluid flows, and a proximal portion mechanically linked to a plane via a link allowing only longitudinal translation of the proximal portion, and a reinforcement including a first side fastened to one of the planes and, a second side that is either fastened to or in sliding contact with the overhanging distal portion of the mobile part to limit its deformation in a transverse direction perpendicular to the longitudinal direction.
摘要翻译： 用于将流体中的压差转换为机械位移的微系统包括输入和输出喷嘴，两个交错部分，其中一个是流体流动的流动部分。 在位移期间，部件限定了从输入喷嘴移动到输出喷嘴的膨胀流体袋。 微型系统还包括顶面和底平面，移动部件在其之间安装以相对于每个平面移位，流体流过的悬垂远端部分和通过链接机械连接到平面的近端部分，仅允许纵向平移 以及包括固定到所述平面中的一个的第一侧面的加强件，以及紧固到所述可移动部件的所述突出远端部分或与所述移动部件的所述突出远端部分滑动接触的第二侧，以限制其在垂直方向上的横向方向上的变形 到纵向。
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公开(公告)号：US08955323B2
公开(公告)日：2015-02-17
申请号：US12828774
申请日：2010-07-01
申请人： Yuji Kamiya
发明人： Yuji Kamiya
CPC分类号： F04D29/5833 , F01K13/00 , F04C23/006 , F04C25/00 , F04C29/04 , F04D29/584 , Y02P80/152
摘要： To improve the exhaust heat recovery efficiency, a compressor includes a heat exchanger for cooling a gas, coolant, water, or oil heated by the compressor during compressor operation by heat exchange with a working fluid, for circulating the working fluid of a Rankine cycle. The Rankine cycle is implemented by the heat exchanger, an expander, a condenser, and a circulating pump to circulate the working fluid through the cycle.
摘要翻译： 为了提高排气热回收效率，压缩机包括用于在压缩机运行期间通过与工作流体的热交换来冷却由压缩机加热的气体，冷却剂，水或油的热交换器，用于循环兰金循环的工作流体。 兰金循环由热交换器，膨胀器，冷凝器和循环泵实现，以使工作流体循环通过循环。
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公开(公告)号：US07104061B2
公开(公告)日：2006-09-12
申请号：US10827246
申请日：2004-04-20
申请人： Shigeru Hisanaga , Yasushi Yamanaka
发明人： Shigeru Hisanaga , Yasushi Yamanaka
CPC分类号： F02G1/00 , F01C1/0207 , F01C1/324 , F01C11/006 , F01C13/04 , F01C21/008 , F02G5/00 , Y02T10/166
摘要： A fluid machine for a waste heat collecting system for an internal combustion engine has an object to make most use of the collected waste heat and an operation of a compressor, an alternator or the like by a rotational driving force from an expansion device function well even during an engine running is stopped. The fluid machine according to the present invention has a pulley connected to the engine, an expansion device for generating a rotational driving force from the collected waste heat, a compressor device driven by the pulley and the expansion device, wherein a rotating shaft is commonly used for the pulley, the expansion device and the compressor device. The expansion device is an expansion device for changing its expansion volume, so that the Rankine cycle for collecting the waste heat can be operated most effectively.
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