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公开(公告)号：US10995739B2
公开(公告)日：2021-05-04
申请号：US14895659
申请日：2014-05-27
IPC分类号： F04B1/0536 , F01B1/06 , F04B27/053 , F04B1/0538 , F04B1/0408 , F04B1/0421 , F04B39/12 , F04B53/10 , F04B1/047 , F04B39/00
摘要： The invention provides a fluid working machine comprising: a cylinder block (1) having an axial bore (4); a crankshaft (2) which extends within the axial bore (4) and is rotatable about an axis of rotation (3); and first and second valve cylinder devices (13) provided in the cylinder block (1) arranged about and extending outwards with respect to the axial bore (4), the first and second valve cylinder devices (13) being axially offset from each other, the first and second valve cylinder devices (13) being offset from each other about the axis of rotation (3), and the first valve cylinder device having an axial extent which overlaps the axial extent of the second valve cylinder device, wherein the first and second valve cylinder devices (13) comprise first valves (14) having respective first working fluid ports (48, 49), the said respective first working fluid ports (48, 49) of the first valves (14) of the first and second valve cylinder devices (13) being in fluid communication with each other via a common conduit (50, 52) extending within the cylinder block (1).
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公开(公告)号：US10677058B2
公开(公告)日：2020-06-09
申请号：US14895684
申请日：2014-05-27
IPC分类号： F01B1/06 , F04B1/0536 , F04B1/0408 , F04B1/0421 , F04B1/047 , F04B39/00 , F04B39/12 , F04B53/10
摘要： The invention provides a fluid working machine comprising: a crankshaft (2) which is rotatable about an axis of rotation (3); adjacent first and second groups (5, 6, 8, 10) of valve cylinder devices (13) spaced from each other about the axis of rotation (3), one or each of the first and second groups (5, 6, 8, 10) of valve cylinder devices having first, second and third valve cylinder devices (13) arranged about and extending outwards with respect to the crankshaft (2), the first and third valve cylinder devices being axially offset from each other, the second valve cylinder device being axially offset from the first and third valve cylinder devices and the second valve cylinder device being offset from the first and third valve cylinder devices about the axis of rotation, wherein the second valve cylinder device has an axial extent which overlaps with the axial extent of one, or the axial extents of both, of the first and third valve cylinder devices.
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公开(公告)号：US11441549B2
公开(公告)日：2022-09-13
申请号：US15518377
申请日：2015-09-23
IPC分类号： F04B1/063 , F04B49/00 , F04B49/22 , F04B1/04 , F04B1/0536 , F04B1/0538 , F04B1/066
摘要： A hydraulic pump (6) comprising: a housing (20) having first and second inlets (100a, 100b) and first and second outlets (102a, 102b); a crankshaft (4) extending within the housing (20) and having axially offset first and second cams (62, 64); first and second groups (30, 32) of piston cylinder assemblies provided in the housing (20), each of the said groups (30, 32) having a plurality of piston cylinder assemblies having a working chamber of cyclically varying volume and being in driving relationship with the crankshaft (4); one or more electronically controllable valves (40) associated with the first and second groups (30, 32); and a controller (70) configured to actively control the opening and/or closing of the said electronically controllable valves (40) on each cycle of working chamber volume to thereby control the net displacement of fluid by the first and second groups (30, 32), wherein at least the first group (30) comprises a first piston cylinder assembly in driving relationship with the first cam (62) and a second piston cylinder assembly in driving relationship with the second cam (64), and wherein the first group is configured to receive working fluid from the first inlet (100a) and to output working fluid to the first outlet (102a) and the second group is configured to receive working fluid from the second inlet (100b) and to output working fluid to the second outlet (102b).
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公开(公告)号：US10753544B2
公开(公告)日：2020-08-25
申请号：US15564668
申请日：2016-04-06
IPC分类号： F04B9/04 , F17D3/12 , F04B1/0536 , F04B27/053 , F04B17/03 , F04B19/06 , F04B53/16 , F04B35/04 , E21B43/12 , F04B23/06 , F04B35/01 , E21B37/06 , E21B41/02
摘要： A planetary drive system that aligns four fluid ends for a pump or four compressor cylinders in the same plane, allowing for four fluid ends/compressor cylinders to be driven by one rotation of the pump's motor. Additionally, the planetary drive system is stackable to allow, for example eight, twelve, or other multiples of fluid ends or compressor cylinders to be driven while minimizing any reduction in output pressure. The chemical injection pump also includes threaded vents on the fluid ends to capture chemicals primed through the valves to avoid spillage and waste during the priming process. The air compressor cylinders also include pistons with enhanced vacuum actuation under a flexible inlet (e.g. flapper inlet).
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公开(公告)号：US10605079B2
公开(公告)日：2020-03-31
申请号：US14895684
申请日：2014-05-27
IPC分类号： F01B1/06 , F04B1/0536 , F04B1/0408 , F04B1/0421 , F04B1/047 , F04B39/00 , F04B39/12 , F04B53/10
摘要： The invention provides a fluid working machine comprising: a crankshaft (2) which is rotatable about an axis of rotation (3); adjacent first and second groups (5, 6, 8, 10) of valve cylinder devices (13) spaced from each other about the axis of rotation (3), one or each of the first and second groups (5, 6, 8, 10) of valve cylinder devices having first, second and third valve cylinder devices (13) arranged about and extending outwards with respect to the crankshaft (2), the first and third valve cylinder devices being axially offset from each other, the second valve cylinder device being axially offset from the first and third valve cylinder devices and the second valve cylinder device being offset from the first and third valve cylinder devices about the axis of rotation, wherein the second valve cylinder device has an axial extent which overlaps with the axial extent of one, or the axial extents of both, of the first and third valve cylinder devices.
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