专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

WO2023007161A1 RETENTION RING FOR HYDRAULIC APPARATUS 审中-公开
公开(公告)号：WO2023007161A1
公开(公告)日：2023-02-02
申请号：PCT/GB2022/051978
申请日：2022-07-27
申请人： DANFOSS SCOTLAND LIMITED
发明人： STEIN, Uwe , VOLLER, Gordon , CHANG, Mun Keong , DEERY, Conor , NORGAARD, Christian
IPC分类号： F04B1/053 , F04B1/0426 , F03C1/053 , F03C1/04
摘要： A hydraulic apparatus provided with an eccentric (32) rotatable about an axis, a plurality of piston feet (154) arranged around a running surface of the eccentric, wherein each piston foot is configured to reciprocate by rotation of the eccentric. The hydraulic apparatus is further provided a retention ring (100a; 100b) having an inner surface (102) which defines therein at least one depression (104), an outer surface (106) defined by the outer circumference of the retention ring; and first and second lateral surfaces (110, 108) each extending between the inner surface and the outer surface. The piston feet each have a seat portion (164) and a lateral flange (162), and at least two of the piston feet (154) have a protrusion (166) that is sized and shaped in relation to the size and shape of the depression (104), such that the protrusion can move from the first lateral surface (110) of the retention ring towards the second lateral surface (108) of the retention ring, via the depression, when the protrusion is in a first position with respect to the depression, such that the retention ring then surrounds both the lateral flange and the eccentric.

2. 发明公开

EP4124754A1 RETENTION RING FOR HYDRAULIC APPARATUS 无效
公开(公告)号：EP4124754A1
公开(公告)日：2023-02-01
申请号：EP21188082.8
申请日：2021-07-27
申请人： Danfoss Scotland Limited
发明人： STEIN, Uwe , DEERY, Conor , VOLLER, Gordon , CHANG, Mun Keong , NORGAARD, Christian
IPC分类号： F04B1/053 , F04B1/0426 , F03C1/053 , F03C1/04
摘要： In summary, there is provided a hydraulic apparatus comprising an eccentric rotatable about an axis, a plurality of piston feet arranged around a running surface of the eccentric and wherein each piston foot is configured to reciprocate by rotation of the eccentric. In addition there is provided a retention ring having an inner surface which defines therein at least one depression, an outer surface defined by the outer circumference of the retention ring; and first and second lateral surfaces each extending between the inner surface and the outer surface. The piston feet each have a seat portion and a lateral flange, and at least two of the piston feet have a protrusion that is sized and shaped in relation to the size and shape of the depression, such that the protrusion can move from the first lateral surface of the retention ring towards the second lateral surface of the retention ring, via the depression, when the protrusion is in a first position with respect to the depression, such that the retention ring then surrounds both the lateral flange and the eccentric.

3. 发明公开

EP4317684A1 METHOD OF CONTROLLING A VALVE 审中-实审
公开(公告)号：EP4317684A1
公开(公告)日：2024-02-07
申请号：EP22188617.9
申请日：2022-08-03
申请人： Danfoss Scotland Limited
发明人： MARSHALL, Angus , STEIN, Uwe , LAIRD, Stephen , CALDWELL, Niall
IPC分类号： F04B1/053 , F04B1/06 , F04B7/00 , F03C1/00
摘要： According to an aspect of the invention, there is provided a method of operating a hydraulic apparatus, the hydraulic apparatus comprising: a hydraulic machine having a rotatable shaft in driven engagement with a prime mover and comprising at least one working chamber having a volume which varies cyclically with rotation of the rotatable shaft, the at least one working chamber comprising one or more electronically actuated valves which regulate the flow of hydraulic fluid between the working chamber and a manifold; a controller configured to control operation of the one or more electronically actuated valves of the hydraulic machine; and one or more components of a first sensor assembly, the one or more components configured to output a phase signal indicative of phase information of the rotatable shaft to the controller, the method comprising: receiving the phase signal from the first sensor assembly; in a first mode of operation of the hydraulic machine, outputting a first valve control signal depending on the phase signal, the first valve control signal configured to cause at least one of the one or more electronically actuated valves to operate in accordance with the first mode; determining that the at least one of the one or more electronically actuated valves should be operated in a second mode of operation of the hydraulic machine depending on a trigger; and in response to determining that the at least one of the one or more electronically actuated valves should be operated in the second mode of operation, in the second mode of operation, outputting a second valve control signal independently of the phase signal, the second valve control signal to cause the at least one of the one or more electronically actuated valves to operate in accordance with the second mode.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式