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US 7,258,084 B2Granted
Explicit seals for moving cylinder assembly
OwnerCharles Malinginventor
Life of this patent
Estimating the term…
Abstract
A moving cylinder assembly includes an end ported moveable cylinder having a chamber for receiving and engaging a piston connected to at least one crank. A stationary housing embraces the cylinder and has at least one port for intermittent communication with the cylinder chamber. One or more ported seals are positioned within the housing and adjacent the cylinder to minimize leakage.
Claims28
A moving cylinder assembly comprising:
- (a) an end ported moveable cylinder defining a chamber for receiving and engaging a piston connected to at least one crank;
- (b) a stationary housing embracing the cylinder and defining at least one port for intermittent communication with the cylinder chamber;
- and
- (c) a first seal having a port formed therethrough, the seal positioned within the housing and adjacent the cylinder for minimizing leakage, and wherein a face of the seal around the port extends beyond a marginal surrounding of the port.
1 more element
An internal combustion engine comprising:
- (a) a pair of cylinder assemblies, each cylinder assembly comprising:
- (i) a moving cylinder defining a chamber for receiving and engaging a piston connected to at least one crank,
- (ii) a stationary housing embracing the cylinder and defining at least one port for intermittent communication with the cylinder chamber, and
- (iii) a first mechanical seal having a port formed therethrough, the seal positioned within the housing and adjacent the cylinder for minimizing leakage, and wherein a face of the seal around the port extends beyond a marginal surrounding of the port;
- and
- (b) wherein at least one port of the first seal of at least one of the assemblies forms part of a passage from a working volume used for intake and compression to a corresponding working volume used for power and exhaust.
3 more elements
Dependencies are inferred from the claim text.