-
公开(公告)号：US11536271B2
公开(公告)日：2022-12-27
申请号：US16758340
申请日：2018-12-14
申请人： Jae Young Lee
发明人： Jae Young Lee , Kil Won Son , Yu Sang Han
摘要： A screw compressor of the present invention comprises: a housing having a compression chamber; male and female rotors provided in the compression chamber; a driving shaft for rotating the male and female rotors; and a seal cover across which the driving shaft is provided, and further includes: an oil chamber provided at the seal cover, and returning, to the compression chamber, oil having leaked into the driving shaft; and a breather for injecting external air into the oil chamber. Therefore, the breather is provided at the upper part of the oil chamber and an oil recovery line is provided at the lower part thereof so as to cause a pressure difference between the upper and lower parts of the oil chamber, such that the flow of the oil having leaked into the driving shaft is smoothly recovered in the oil recovery line.
-
公开(公告)号：US11525520B2
公开(公告)日：2022-12-13
申请号：US15105820
申请日：2013-12-18
发明人： Robert Lee Marvel , Joseph Ashurst
摘要： A port for use in introducing a fluid into an internal fluid chamber includes a plug bore, a valve disposed in the plug bore and a plug. The plug includes one or more seal grooves and a ring seal in each of the one or more seal grooves. The ring seal creates a seal between the plug and the plug bore. The port further includes a positive stop barrier that prevents the plug from being removed from the plug bore.
-
公开(公告)号：US11499395B2
公开(公告)日：2022-11-15
申请号：US16550994
申请日：2019-08-26
摘要： A buoyancy assist tool and a fluid barrier in a casing string define a buoyancy chamber therebetween. The buoyancy assist tool has a housing connected in the casing string with a retaining sleeve detachably connected in the housing. The retaining sleeve is movable from a first to a second position in the housing. A flapper disk is positioned in the housing and covers an upper end of the retaining sleeve in the first position of the retaining sleeve. In the second position of the retaining sleeve the flapper disk is in a retracted position out of the flow path through the housing.
-
公开(公告)号：US11473683B2
公开(公告)日：2022-10-18
申请号：US17259138
申请日：2019-08-07
发明人： Masahiro Hayama , Kohei Fukudome , Takahiro Ejima , Daichi Kurihara , Wataru Takahashi , Keigo Shirafuji
摘要： A capacity control valve includes a valve housing formed with a discharge port, a suction port, and first and second control ports, a rod arranged in the valve housing and driven by a solenoid, a CS valve 50 configured to control a fluid flow between the first control port and the suction port in accordance with a movement of the rod, and a DC valve configured to control a fluid flow between the second control port and the discharge port in accordance with the movement of the rod. In a non-energization state of the solenoid, the CS valve is closed and the DC valve is opened. As the energization of the solenoid becomes larger, the CS valve transitions from a closed state to an open state, and the DC valve is throttled from an open state and thereafter transitions to the open state.
-
公开(公告)号：US11365820B2
公开(公告)日：2022-06-21
申请号：US17077549
申请日：2020-10-22
申请人： SCV Valve, LLC
发明人： Sidney McCarra
摘要： A piston check valve system includes a body including an upstream end and a downstream end, a bonnet secured to a proximal opening of the body, and a piston secured within the body, the piston being moveable between a closed position in which the piston rests upon a valve seat and an open position in which the piston is spaced away from the valve seat. The piston check valve system also includes a retainer configured to guide and retain the piston and to secure the valve seat within the body.
-
公开(公告)号：US11298294B2
公开(公告)日：2022-04-12
申请号：US16158523
申请日：2018-10-12
发明人： Tolga Aydin
摘要： The invention relates to a fluid valve and fluid connection system, comprising a casing having a chamber with a first internal connection element and a first external connection element; comprising a first movable valve element in the chamber; and comprising an actuating element which has a fluid communication system with a second internal connection element and a second external connection element; wherein the first internal connection element cooperates with the second internal connection element and the valve element to establish or block a fluid connection between the first and second external connection elements.
-
公开(公告)号：US11268627B1
公开(公告)日：2022-03-08
申请号：US17014864
申请日：2020-09-08
申请人： Magic Plastics, Inc.
发明人： Anna Sarno
摘要： A check valve has an internal gate having an adjustable retention force, such that in the event that if the differential pressure between the upstream and downstream pressure changes, the force required to allow flow through the valve may be adjusted without removal of the valve from the piping system.
-
公开(公告)号：US11187383B2
公开(公告)日：2021-11-30
申请号：US15709967
申请日：2017-09-20
发明人： Sen Lin , James Kevin Guest , Takeru Igusa
摘要： The present invention is directed to an improved fluid diode using topology optimization with Finite Element Method (FEM). Topology optimization as a flexible optimization method has been extended to the fluid field. For given boundary conditions and constraints, it distributes a specific amount of pores (or remove materials to get channel) in the design domain to minimize/maximize an objective function. In this design, inlet and outlet ports are aligned and inflow and outflow are in the same direction. The present invention features an intricate network of fluid channels having optimized fluid connectivity and shapes, which significantly improves the diodicity of fluidic passive valves.
-
公开(公告)号：US20210364115A1
公开(公告)日：2021-11-25
申请号：US17324551
申请日：2021-05-19
摘要： The invention relates to an inertization apparatus for inerting a working volume in a chemical production plant by flushing with inert gas, where the chemical production plant comprises a plant-wide inert gas distribution system having pipes for distributing the inert gas and at least one inert gas offtake position which can be connected to a connecting conduit. According to the invention, it is provided that the connecting conduit between inertization apparatus and working volume is connected, at its end nearest the working volume, in a not reversibly detachable manner to an intermediate piece, where the intermediate piece can be connected in a reversibly detachable manner to a counterpiece provided on the working volume.
-
公开(公告)号：US20210278002A1
公开(公告)日：2021-09-09
申请号：US17059627
申请日：2019-06-27
申请人： Sulzer Mixpac AG
发明人： Hayden TURNER , Garrett FAINO
IPC分类号： F16K15/00 , B05C11/10 , B05C17/005
摘要： A check valve system includes a housing, a blocking element, and a biasing member. The housing has a passageway therethrough, the passageway including a first portion and a second portion, the first portion having a diameter that is less than a diameter of the second portion so as to form a stepped portion. The blocking element is disposed within the second portion of the passageway. The biasing member is disposed within the second portion of the passageway and configured to maintain the blocking element in contact with the stepped portion when under compression. The housing, the blocking element and the biasing member being obtainable by substantially simultaneously 3D printing, so as to be formed from one or more 3D printable materials.
-
-
-
-
-
-
-
-
-
搜索结果
1462 条记录 (耗时 0.027 秒)