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US 11,000,865 B2Granted
Fluid supply apparatus
AssigneeSio Co., Ltd.
InventorsMasuhiko Komazawa, Masaru Ohki
Life of this patent
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Abstract
A fluid supply apparatus according to an embodiment of the invention includes a housing and an internal structure which is housed in the hosing. The internal structure includes a shaft portion and a plurality of protrusions protruding from the outer circumferential surface of the shaft portion. A plurality of flow paths are formed between the plurality of protrusions, and a groove having a predetermined depth from the outer circumferential surface of the shaft portion is formed in each of at least a part of the plurality of flow paths.
Claims13
A fluid supply apparatus comprising:
- a housing, and
- an internal structure which is housed in the housing,
- wherein the internal structure comprises a shaft portion having a circular cross-section and a plurality of protrusions protruding from an outer circumferential surface of the shaft portion,
- the plurality of protrusions are formed by intersecting a plurality of spiral flow paths spaced along a circumference of the shaft portion and a plurality of closed flow paths spaced along a longitudinal direction of the shaft portion, and
- a groove having a predetermined depth in a radial direction of the shaft portion from the outer circumferential surface of the shaft portion which is a bottom of each of the plurality of closed flow paths is formed in at least a part of each of one or more of the plurality of spiral flow paths, the groove spirally extending along the outer circumferential surface of the shaft portion.
2 more elements
A fluid supply apparatus comprising:
- an internal structure, and
- a housing configured to house the internal structure,
- the housing having an inlet and an outlet, and
- the internal structure comprising a first portion and a second portion, which are formed integrally on a common shaft having a circular cross-section,
- wherein the first portion of the internal structure is positioned upstream of the housing when the internal structure is housed in the housing and comprises a shaft portion and at least one spiral vane to swirl a fluid,
- the second portion of the internal structure is positioned downstream from the first portion and comprises a shaft portion and a plurality of protrusions protruding from an outer circumferential surface of the shaft portion,
- the plurality of protrusions of the second portion are formed by intersecting a plurality of spiral flow paths spaced along a circumference of the shaft portion of the second portion and a plurality of closed flow paths spaced along a longitudinal direction of the shaft portion, and
- a groove having a predetermined depth in a radial direction of the shaft portion of the second portion from the outer circumferential surface of the shaft portion which is a bottom of each of the plurality of closed flow paths is formed in at least a part of each of one or more of the plurality of spiral flow paths.
5 more elements
Dependencies are inferred from the claim text.