초록 ▼

An epicycling device with improved sealing. A housing is provided with adjacent walls spaced apart to allow a substantially planar partition to pass. A piston is linked eccentrically to a drive shaft and positioned within the housing, has a cross sectional shape for mating with the housing walls and

An epicycling device with improved sealing. A housing is provided with adjacent walls spaced apart to allow a substantially planar partition to pass. A piston is linked eccentrically to a drive shaft and positioned within the housing, has a cross sectional shape for mating with the housing walls and includes a circular recessed surface at its corners. Seal housings with a hollow cylindrical cross sectional shape are provided at each corner of the piston housing. An inner seal element is positioned within each of the recessed surfaces with the inner seal element including an elongate cylindrical body with a slot therethrough. An outer seal element is positioned within the seal housings with the outer seal element including an elongate cylindrical body with a slot. A partition is positioned between each pair of the inner and outer seal elements and slidably engaged with the slots in the seal elements.

대표청구항 ▼

I claim: 1. An epicycling device with improved sealing, comprising: a housing defining a piston chamber having at least three walls, wherein adjacent walls are spaced apart; a piston element linked eccentrically to a drive shaft passing through the center of the piston element, wherein the piston e

I claim: 1. An epicycling device with improved sealing, comprising: a housing defining a piston chamber having at least three walls, wherein adjacent walls are spaced apart; a piston element linked eccentrically to a drive shaft passing through the center of the piston element, wherein the piston element is positioned within the housing, has a cross sectional shape for mating with the housing walls, and includes a generally circular recessed surface at each corner; seal housings with a hollow cylindrical cross sectional shape with openings mating with the space between the adjacent walls; an inner seal element positioned within each of the recessed surfaces, the inner seal element including an elongate cylindrical body with a slot passing therethrough; an outer seal element positioned within each of the seal housings, the outer seal element including an elongate cylindrical body with a slot; and a partition positioned between each pair of the inner and outer seal elements and slidably engaged with the slots in the seal elements, wherein each of the seal elements includes a ring seal around each end of the elongate cylindrical body. 2. The device of claim 1, wherein the seal elements include a raised seal element extending parallel to the central axis of the elongate cylindrical body positioned on an outer surface of each of the seal elements. 3. The device of claim 1, wherein the partition includes an air bearing, an oil bearing, or a magnetic bearing configured such that a bearing separation distance is maintained between the partition and the inner seal element at the contact surface. 4. An epicycling device with improved sealing, comprising: a housing defining a piston chamber having four walls; a piston linked eccentrically to a drive shaft passing through the center of the piston, wherein the piston is positioned within the housing, has a square cross sectional shape for mating with the housing walls, and includes a generally recessed surface at each corner: seal housings with a hollow cylindrical cross sectional shape with openings provided between adjacent ones of the tour walls; an inner seal element positioned within each of the recessed surfaces, the inner seal element including an elongate cylindrical body; an outer seal element positioned within each of the seal housings, the outer seal element including an elongate cylindrical body; and a partition positioned between each pair of the inner and outer seal elements to sealably connect the seal elements, wherein each of the inner and outer seal elements includes a ring seal around each end of the elongate cylindrical body. 5. The device of claim 4, wherein the inner and outer seal elements include a raised seal element extending parallel to the central axis of the elongate cylindrical body positioned on an outer surface of each of the seal elements. 6. The device of claim 4, wherein the inner and outer seal elements include slots in the elongate cylindrical bodies and wherein the partition is received in the slots to slidably mate the partition with the inner and outer seal elements. 7. An epicycling device with improved sealing, comprising: a housing defining a piston chamber having at least three walls, wherein adjacent walls are spaced apart, and including cylindrical cross section, seal housings with openings mating provided between adjacent ones of the walls; a piston element positioned within the housing and having a cross sectional shape for mating with the housing walls, wherein the piston element includes a generally circular recessed surface at each corner; an inner seal element positioned within each of the recessed surfaces, the inner seal element including an elongate cylindrical body with a slot extending therethrough; an outer seal element positioned within each of the seal housings, the outer seal element including an elongate cylindrical body with a slot extending partially through the cylindrical body; and a partition positioned between each pair of the inner and outer seal elements and slidably engaged with the slots in the seal elements, whereby during operation of the device the partitions periodically pass through the elongate cylindrical bodies of the inner seal elements via the slots in the inner seal elements. 8. The device of claim 7, wherein the seal elements include a raised seal element extending parallel to the central axis of the elongate cylindrical body positioned on an outer surface of each of the seal elements. 9. The device of claim 7, wherein the partition includes an air bearing, an oil bearing, or a magnetic bearing configured such that a bearing separation distance is maintained between the partition and the inner seal element at the contact surface. 10. The device of claim 7, wherein each of the seal elements includes a ring seal around each end of the elongate cylindrical body.