-
公开(公告)号：US11598333B2
公开(公告)日：2023-03-07
申请号：US17410656
申请日：2021-08-24
申请人： ITT Bornemann GmbH
摘要： Technologies are generally described for clearance adjustments in twin-screw pump assemblies. A twin-screw pump assembly may include a conically shaped portion of a drive shaft enveloped by a bushing. For clearance adjustment, both clamping nuts of the drive shaft, which provide pretention to the bushing and secure an axial position of a threaded screw to the drive shaft, may be removed on the flow side of the pump assembly and the bushing loosened to adjust the angularity between bushing and drive shaft. The bushing may then be pushed over the conically shaped portion and both clamping nuts re-assembled. In some examples, a clamping nut of the driven shaft may be designed and used as removal/loosening tool for the drive shaft bushing.
-
公开(公告)号：US11365735B2
公开(公告)日：2022-06-21
申请号：US16758309
申请日：2018-10-23
申请人： Carrier Corporation
发明人： Masao Akei
IPC分类号： F04C18/16 , F04C29/12 , F04C28/06 , F04C18/02 , F04C29/06 , F04C18/06 , F04C28/26 , F01C1/16
摘要： A compressor casing having an internal gas passage includes a first bearing housing arranged at a first end of the casing, a second bearing housing arranged at a second, opposite end of the casing, and a rotor case disposed between the first bearing housing and the second bearing housing. The rotor case includes an axially extending bore within which a plurality of rotors are receivable and a hollow internal cavity isolated from the bore. The internal cavity is fluidly coupled to the bore via at least one recess. At least one exit opening is formed in one of the first bearing housing and the second bearing housing. The at least one exit opening is operably coupled to the internal cavity of the rotor case.
-
公开(公告)号：US11008866B2
公开(公告)日：2021-05-18
申请号：US16200906
申请日：2018-11-27
申请人： Bret Freeman
发明人： Bret Freeman
摘要： An engine comprises a compression portion and a combustion portion. The compression portion comprises twin-screw rotors, male engaged with female. The combustion portion comprises twin-screw rotors, male engaged with female. The male compression rotor and the male combustion rotor share a same longitudinal axis, and the female compression rotor and the female combustion rotor share a same longitudinal axis. A combustion plate is disposed between the compression portion and the combustion portion, and prevents flow of gas from the compression portion to the combustion portion, except through a small orifice centrally located on the combustion plate. A valve is affixed to the male rotors adjacent to the combustion plate, covering the lobes of the male rotors and extending beyond the lobes of the male rotors. The valve controls the flow of gas from the compression portion to the combustion portion.
-
公开(公告)号：US20210017986A1
公开(公告)日：2021-01-21
申请号：US16981128
申请日：2019-03-14
发明人： Yuuji ITOU , Tomoo SUZUKI , Masayuki KASAHARA , Hiroshi HORIUCHI
摘要： The invention prevents a decrease in strength of a screw rotor including a hollow portion and improves cooling performance. There is provided a screw rotor having a helical tooth on an outer periphery, the helical tooth extending by a predetermined length in an axial direction, in which a radial cross section of the screw rotor includes a cross section of a tooth portion, a cross section of an axial portion, a cross section of a support portion connected to an axial side of a tooth bottom or a tooth tip in the cross section of the tooth portion and an outer diameter side of the axial portion, and a cross section of a hollow portion formed by the support portions adjacent to each other in a rotational direction and an axial side inner surface of the tooth bottom or the tooth tip, and an axial longitudinal cross section of the screw rotor is a cross section in which the axial portion, the support portion, the axial side of the tooth bottom or the tooth tip, and an axial end portion of the screw rotor are continuously connected to each other as an integral structure by a three-dimensional fabrication method or the like.
-
公开(公告)号：US10605123B2
公开(公告)日：2020-03-31
申请号：US15473660
申请日：2017-03-30
申请人： Kobe Steel, Ltd.
摘要： A thermal energy recovery device includes: a circulation line having an evaporator, an expander, a condenser, and a pump; a power recovery machine; a first on-off valve; a thermal energy introduction line configured to introduce a gas phase working medium into a post-expansion space; a second on-off valve; and a control unit. Until an evaporation condition that a liquid phase working medium accumulated in the post-expansion space has reached an amount equal to or smaller than a reference amount is met, the control unit closes the first on-off valve and opens the second on-off valve, and drives the pump in a state where the expander is stopped, and when the evaporation condition is met, the control unit opens the first on-off valve and closes the second on-off valve, and drives the expander.
-
公开(公告)号：US10415706B2
公开(公告)日：2019-09-17
申请号：US14891954
申请日：2014-05-20
申请人： Victor Juchymenko
发明人： Victor Juchymenko
IPC分类号： F16J15/40 , F01C1/16 , F01C19/12 , F01C21/00 , F01C21/04 , F04C29/00 , F16H57/029 , F16H57/04 , F01C11/00 , F04C29/02
摘要： A method and system is provided for pressure balancing one or more seals in machines such as expanders and/or compressors using the process fluid which is being expanded or compressed to provide the pressure for pressure balancing the other side of the one or more seals. The one or more seals may be part of a pressure containing chamber which may comprise a seal, a bearing and/or a gear on a rotating shaft common to the seal. An amount of pressure to be supplied to housing(s) for a machine so as to create a pressure cascade, and thereby dropping the pressure in each subsequent chamber as pressure approaches atmosphere. Pressure differentials may be directed to leak process fluid to the chamber into the process. Pressurized lube oil systems may be employed for balancing pressure and delivering lubricant to the seals, bearings and gears.
-
公开(公告)号：US10267309B2
公开(公告)日：2019-04-23
申请号：US15515572
申请日：2015-09-29
发明人： Katsunari Tsuzuki
IPC分类号： F01C1/16 , F01C1/24 , F03C2/00 , F04C2/16 , F04C2/18 , F03C2/08 , F04C15/00 , F01C21/02 , F01C21/08 , F04C15/06
摘要： A gear pump or a gear motor includes a casing, a helical drive gear, a helical driven gear, a drive-side space, and an idler-side space. The drive and driven gears mesh with each other in the casing to partition inside of the casing so as to include high and low pressure spaces. The drive-side and idler-side spaces are each configured to allow pressure therein to become higher than a pressure in the low-pressure space. The drive-side space faces an end portion of a drive shaft rotatably supporting the drive gear. The idler-side space faces an end portion of an idler shaft rotatably supporting the driven gear. The end portion of the drive shaft is pushed in a predetermined direction by working fluid supplied to the drive-side space. The end portion of the idler shaft is pushed in the predetermined direction by working fluid supplied to the idler-side space.
-
公开(公告)号：US20190093480A1
公开(公告)日：2019-03-28
申请号：US16200906
申请日：2018-11-27
申请人： Bret Freeman
发明人： Bret Freeman
摘要： An engine comprises a compression portion and a combustion portion. The compression portion comprises twin-screw rotors, male engaged with female. The combustion portion comprises twin-screw rotors, male engaged with female. The male compression rotor and the male combustion rotor share a same longitudinal axis, and the female compression rotor and the female combustion rotor share a same longitudinal axis. A combustion plate is disposed between the compression portion and the combustion portion, and prevents flow of gas from the compression portion to the combustion portion, except through a small orifice centrally located on the combustion plate. A valve is affixed to the male rotors adjacent to the combustion plate, covering the lobes of the male rotors and extending beyond the lobes of the male rotors. The valve controls the flow of gas from the compression portion to the combustion portion.
-
公开(公告)号：US20180320520A1
公开(公告)日：2018-11-08
申请号：US16038945
申请日：2018-07-18
申请人： Bitzer US, Inc.
发明人： Tom Brokaw , Andrew Oxner , Hans Wain
IPC分类号： F01C21/04 , C10M171/00 , C09K5/04 , F01C21/06 , F01C1/16 , C10M105/06 , C10M101/00
CPC分类号： F01C21/04 , C09K5/04 , C09K5/045 , C10M101/00 , C10M105/06 , C10M171/008 , C10M2203/065 , C10M2203/1006 , C10M2205/223 , C10N2220/302 , C10N2240/30 , F01C1/16 , F01C21/06 , F01K25/08
摘要： Apparatuses, systems, and methods are provided for the lubrication of fluid displacement machines, in particular positive displacement machines such as twin screw expanders utilized in organic Rankine cycle systems, comprising a working fluid mixed with a lubricant that is neither soluble nor miscible in the liquid phase of the working fluid.
-
公开(公告)号：US20180223666A1
公开(公告)日：2018-08-09
申请号：US15945009
申请日：2018-04-04
发明人： Roni Loerch , Marcus Blumhardt
摘要： In order to improve an expansion system for a working medium that is used in particular in a circulating process of a system that utilises waste heat, in particular in a system operating in a Rankine cycle, comprising an expansion device coupled to an electricity generator, for the working medium, an inlet for supplying the pressurised working medium, and an outlet for the working medium that has been expanded by the expansion device, it is proposed that an aerosol generator unit that generates a lubricant aerosol should be associated with the inlet, wherein the working medium guided to the expansion device flows through this aerosol generator unit, which has a flow guide for the working medium having a concentration section that concentrates lubricant entrained in the total mass flow of working medium supplied to the expansion device to give aerosol particles, and these aerosol particles leave the concentration section together with a partial mass flow of the working medium, branching off from the total mass flow of working medium, as a lubricant aerosol mass flow, and that a line system should be provided that guides the lubricant aerosol mass flow to lubrication points of an expansion arrangement of the expansion device, for the purpose of aerosol lubrication.
-
-
-
-
-
-
-
-
-
搜索结果
483 条记录 (耗时 0.025 秒)
