Valve
First Claim
1. An apparatus comprising:
- a cylinder configured to receive a piston and defining a first port;
a mechanical linkage comprising a piston rod configured to transmit out of the cylinder, a power of gas expanding against the piston;
an element configured to effect gas-liquid heat exchange with gas in the cylinder in an absence of combustion; and
a first valve comprising,a first valve element moveable relative to the first port,a second valve element selectively rotatable relative to the first valve element to control a duration of opening of the first port, anda third valve element selectively moveable to control a starting point of opening of the first port.
1 Assignment
0 Petitions
Accused Products
Abstract
Embodiments relate to valves comprising a member such as a plate or poppet, that is moveable relative to a stationary seat. The state of the member may be maintained against opposing forces with relatively little expenditure of energy. According to one embodiment, a poppet displaced from seating in the valve seat, may be held in position against opposing forces tending to close the valve, until a desired flow of gas through the valve has taken place. The poppet may then be released as desired, such that those opposing forces serve to passively close the valve. The valve may be secured in position utilizing mechanical, magnetic, electromagnetic, pneumatic, electrostatic, or hydraulic approaches. Valve embodiments may be particularly suited to controlling gas flows for compression and/or expansion in an energy storage system.
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Citations
20 Claims
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1. An apparatus comprising:
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a cylinder configured to receive a piston and defining a first port; a mechanical linkage comprising a piston rod configured to transmit out of the cylinder, a power of gas expanding against the piston; an element configured to effect gas-liquid heat exchange with gas in the cylinder in an absence of combustion; and a first valve comprising, a first valve element moveable relative to the first port, a second valve element selectively rotatable relative to the first valve element to control a duration of opening of the first port, and a third valve element selectively moveable to control a starting point of opening of the first port. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification