Hydrostatic radial piston unit
US-12523201-B2 · Jan 13, 2026 · US
Fluid-working machine with multi-lobe ring cam
US9328720B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9328720-B2 |
| Application number | US-201013059569-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 17, 2010 |
| Priority date | Aug 17, 2010 |
| Publication date | May 3, 2016 |
| Grant date | May 3, 2016 |
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- Title
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Abstract
Official abstract text for this publication.
A fluid-working machine for a renewable energy generation device, the fluid-working machine comprising a ring cam and a plurality of working chambers, the ring cam having an annular working surface extending around an axis of rotation of the ring cam, the annular working surface defining a plurality of waves, each working chamber having a piston, each piston in operative engagement with the ring cam working surface, the ring cam and working chambers being mounted to rotate relative to each other, cycles of working chamber volume being thereby coupled to rotation of the ring cam relative to the working chambers, characterized in that the individual waves of the ring cam working surface have an asymmetric profile.
First claim
Opening claim text (preview).
The invention claimed is: 1. A fluid-working machine for a renewable energy generation device, the fluid-working machine comprising: a ring cam, a plurality of working chambers, and a low-pressure manifold, the ring cam having an annular working surface extending around an axis of rotation of the ring cam, the annular working surface defining a plurality of waves, each working chamber having a piston, each piston in operative engagement with the ring cam working surface,…
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Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
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Frequently asked questions
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- What does patent US9328720B2 cover?
- A fluid-working machine for a renewable energy generation device, the fluid-working machine comprising a ring cam and a plurality of working chambers, the ring cam having an annular working surface extending around an axis of rotation of the ring cam, the annular working surface defining a plurality of waves, each working chamber having a piston, each piston in operative engagement with the rin…
- Who is the assignee on this patent?
- Caldwell Niall James, Dumnov Daniil Sergeevich, Rampen William Hugh Salvin, and 4 more
- What technology area does this patent fall under?
- Primary CPC classification F03C1/0409. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue May 03 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).