EGR device having slidable valve
AssigneesDENSO International America, Inc., Denso Corporation
InventorsNicholas Polcyn, Jonathan Logan, Dallas Smolarek
Life of this patent
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Abstract
An EGR device includes a housing and a valve. The housing has an outer pipe and an inner structure. The inner structure is located inside the outer pipe to define an annular passage externally with the outer pipe. The inner structure defines an inner passage internally. The inner structure has apertures. The valve is in a tubular shape and is located inside the inner structure. The valve is slidable in an axial direction to communicate the annular passage with the inner passage through the apertures and to block the inner passage from the annular passage.
Claims20
An EGR device comprising:
- a housing having an outer pipe and an inner structure, the inner structure located inside the outer pipe to define an annular passage externally with the outer pipe, the inner structure defining an inner passage internally, the inner structure having a plurality of apertures;
- and
- a valve in a tubular shape and located inside the inner structure, wherein
- the valve is slidable in an axial direction to communicate the annular passage with the inner passage through the apertures and to block the inner passage from the annular passage.
An EGR device comprising:
- a housing having an outer pipe and an inner structure, the inner structure located inside the outer pipe to define an annular passage externally with the outer pipe, the inner structure defining an inner passage internally, the inner structure having a plurality of apertures extending radially therethrough;
- and
- a valve in a tubular shape and located inside the inner structure, wherein
- the valve is slidable in an axial direction to control an area of the apertures through which the annular passage communicates with the inner passage.
Dependencies are inferred from the claim text.