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US 4,357,133 AGranted
Rotary gerotor hydraulic device with fluid control passageways through the rotor
OwnerHollis N. White, Jr.inventor
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OwnerHollis N. White, Jr.inventor
Estimating the term…
A rotary fluid pressure device is disclosed comprising a housing having fluid inlet and outlet means and enclosing a gerotor having an internally toothed member and a coacting externally toothed member having a less number of teeth than the internally toothed member and having its axis positioned eccentrically relative to the axis of the internally toothed member. A wobble stick in the housing has a first end connected to the axial drive shaft and a second end connected to the gerotor member having the orbital movement. The housing has one set of passageways communicating at all times with the expanding and contracting gerotor cells. The gerotor member having orbital movement is, in addition to its usual function, a valve with two travel passageways, one travel passageway extending straight through the rotor and coaxially surrounding the other travel passageway. These two travel passageways communicate at all times part of the set of passageways in the housing with only one fluid inlet or outlet while communicating other of this same set of passageways with the other fluid inlet and outlet.
In a gerotor hydraulic pressure device having a housing, a rotor with two flat axial end surfaces, gerotor cells and two fluid connections, an improved fluid control comprising a pair of travel passageways, one of said pair of travel passageways extending on a straight line through the rotor from one surface to the other, the other of said pair of travel passageways being in the rotor, means to connect one of said pair of travel passageways to one of the fluid connections, means to connect the other of said pair of travel passageways to the other of the fluid connections and means within the housing to connect said pair of travel passageways to the gerotor cells selectively as the device is operated.
In a gerotor hydraulic pressure device having a housing, a rotor with two flat axial end surfaces, gerotor cells, and two fluid connections, an improved fluid control comprising a pair of travel passageways, said pair of travel passageways being in the rotor, one of said pair of travel passageways extending through the rotor from one surface to the other, said one travel passageway being spaced from the axis of the rotor at both end surfaces of the rotor, said travel passageway surrounding said other travel passageway, means to connect one of said pair of travel passageways to one of the fluid connections, means to connect the other of said pair of travel passageways to the other of the fluid connections and manifold means within the housing to connect said pair of travel passageways to the gerotor cells selectively as the device is operated.
In a gerotor hydraulic pressure device having a housing, a rotor with two flat axial end surfaces, a universal drive joint connected to the rotor, gerotor cells and two fluid connections, an improved fluid control comprising a pair of travel passageways, each of said pair of travel passageways extending through the rotor from one surface to the other, one of said pair of travel passageways surrounding the other of said pair of travel passageways, said one of said pair of travel passageways being spaced from the axis of the rotor at both end surfaces of the rotor, means to connect one of said pair of travel passageways to one of the fluid connections, means to connect the other of said pair of travel passageways to the other of the fluid connections and means within the housing to connect said pair of travel passageways to the gerotor cells selectively as the device is operated.
In a gerotor hydraulic pressure device having a housing, a rotor with two flat axial end surfaces, a universal drive joint connected to the rotor, gerotor cells and two fluid connections, an improved fluid control comprising a pair of travel passageways, one of said pair of travel passageways extending on a straight line through the rotor from one surface to the other, the other of said pair of travel passageways being in the rotor around the universal drive joint, means to connect one of said pair of travel passageways to one of the fluid connections, means to connect the other of said pair of travel passageways to the other of the fluid connections and means within the housing to connect said pair of travel passageways to the gerotor cells selectively as the device is operated.
In a gerotor hydraulic pressure device having a housing, a rotor with two flat axial end surfaces, gerotor cells and two fluid connections, an improved fluid control comprising a pair of travel passageways, each of said pair of travel passageways extending on a straight line through the rotor from one surface to the other, means to connect one of said pair of travel passageways to one of the fluid connections, means to connect the other of said pair of travel passageways to the other of the fluid connections and means within the housing to connect said pair of travel passageways to the gerotor cells selectively as the device is operated.
In a gerotor hydraulic pressure device having a housing, a stator, a rotor, the rotor having two flat axial end surfaces, a universal drive joint connected to the rotor, cells and two fluid connections, an improved control comprising a first set of travel passageways, said first set of travel passageways being located in the rotor, said first set of travel passageways extending from one surface to the other surface of the rotor, said first set of travel passageways being spaced from the axis of the rotor at both end surfaces of the rotor, means to connect said first set of travel passageways to one of the two fluid connections, a second set of travel passageways, said second set of travel passageways being located in the rotor, said second set of travel passageways extending from one surface to the other surface of the rotor, said second set of travel passageways being around the universal drive joint, said first set of travel passageways surrounding said second set of travel passageways, means to connect said second set of travel passageways to the other of the two fluid connections, a set of fluid passageways, said set of fluid passageways being located in the housing, each member of said set of fluid passageways having first and second end portions, said first end portion opening into the cells, and said second end portion opening in the zone swept by said travel passageways, said travel passageways selectively communicating with said second end portions as the device is operated.
In a gerotor hydraulic pressure device having a housing, a stator, a rotor, the rotor having two flat axial end surfaces, cells, a rotor cavity, the rotor cavity having two flat end surfaces, a drive connection driving the rotor in a geared connection in a central bore extending through the rotor and two fluid connections, an improved fluid control comprising a distribution channel, said distribution channel being located in said housing, said distribution channel being connected to one of the two fluid connections, an annular transfer channel, said annular transfer channel being located on one of two surfaces of the rotor cavity, said annular transfer channel opening into the rotor cavity, a set of fluid travelways, said set of fluid travelways being located in the housing connecting said distribution channel to said annular transfer channel, means to connect the central bore of the rotor to the other of the two fluid connections, the housing having first and second sets of openings, said first set of openings being located on the other of the two surfaces of the rotor cavity, said first set of openings communicating into the cells, said second set of openings being located on the other of the two surfaces of the rotor cavity, said second set of openings, opening into the rotor cavity, a set of fluid passageways, said set of fluid passageways being located in said housing, said set of fluid passageways connecting said first set of openings with said second set of openings, respectively, an annular channel, said annular channel being located on one surface of the rotor, said annular channel communicating with said annular transfer channel, a second annular channel, said second annular channel being located on the other surface of the rotor, a hole or set of holes, said hole or set of holes being located in the rotor, said hole or set of holes connecting said annular channel with said second annular channel, a second set of holes, said second set of holes being the gaps and openings in the geared drive connection in the central through bore of the rotor, and said second annular channel and said central through bore of the rotor selectively communicating with said second set of openings as the device is operated to selectively connect the gerotor cells to the fluid connections.
In a gerotor hydraulic pressure device having a housing, a stator, a rotor, the rotor having two flat axial end surfaces, a geared drive connection in a through bore at the center of the rotor, cells and two fluid connections an improved fluid control comprising a first set of travel passageways, said first set of travel passageways being located in the rotor, said first set of travel passageways extending from one surface to the other surface of the rotor, means to connect said first set of travel passageways to one of the two fluid connections, a second set of travel passageways, said second set of travel passageways extending fom one surface to the other surface of the rotor, said second set of travel passageways being the gaps and openings in the geared drive connection, means to connect said second set of travel passageways to the other of the two fluid connections, a set of fluid passageways, said set of fluid passageways being located in the housing, each member of said set of fluid passageways having first and second end portions, said first end portion opening into the cells and said second end portion opening in the zone of said travel passageways so as to selectively communicate with them as the device is operated.
The structure of claim 24 characterized in that said means to connect said first set of travel passageways to one of the two fluid connections comprises a distribution channel, said distribution channel being located in said housing, said distribution channel being connected to one of the two fluid connections, an annular transfer channel, said annular transfer channel being located on one of the two surfaces of the rotor cavity, said annular transfer channel opening into the rotor cavity, a set of fluid travelways, said set of fluid travelways being located in the housing connecting said distribution channel to said annular transfer channel, and said annular transfer channel communicating with said first set of travel passageways.
In a gerotor hydraulic pressure device having a housing, a stator, a rotor, the rotor having two flat axial end surfaces, a geared drive connection at the center of the rotor, gerotor cells, a set of manifold passageways in said housing communicating with the gerotor cells, and two fluid connections, an improved fluid control comprising a first travel passageway, said first travel passageway being a series of holes, said first travel passageway being located in the rotor, said first travel passageway extending from one surface to the other surface of the rotor, said first travel passageway being spaced from the axis of the rotor at both end surfaces of the rotor, commutation means to connect said first travel passageway to one of the two fluid connections, a second travel passageway, said second travel passageway being located in the rotor, said first travel passageway surrounding said second travel passageway, and means to connect said second travel passageway to the other of the two fluid connections, said travel passageways selectively communicating with the set of manifold passageways in the housing as the device is operated.
A gerotor hydraulic pressure device having a housing, a stator, a rotor, the rotor having two flat axial end surfaces, a geared drive connection at the center of the rotor, gerotor cells, a set of manifold passageways in said housing communicating with the gerotor cells and two fluid connections, an improved fluid control comprising an annular channel, said annular channel being in one flat surface of the rotor, said annular channel being spaced from the axis of the rotor, a second annular channel, said second annular channel being in the other flat surface of the rotor, said second annular channel being spaced from the axis of the rotor, at least one hole through the rotor connecting said annular channel to said second annular channel, commutation means to connect said annular channel to one of the two fluid connections, a travel passageway being located in the rotor, one of said annular channel or said second annular channel surrounding said travel passageway, and means to connect said travel passageway to the second of the two fluid connections, said second annular channel and said travel passageways selectively communicating with the set of manifold passageways in said housing as the device is operated.
In a gerotor hydraulic pressure device having a housing, a stator, a rotor, the rotor having two flat axial end surfaces, a universal drive joint connected to the rotor, gerotor cells, a set of manifold passages in the housing communicating with the cells and two fluid connections, an improved control comprising a first set of travel passageways, said first set of travel passageways extending from one end surface to the other end surface of the rotor, said first set of travel passageways being spaced from the axis of the rotor at both end surfaces of the rotor, means to connect said first set of travel passageways to one of the two fluid connections, a second travel passageway, said second travel passageway being an opening in a flat surface of the rotor, said first set of travel passageways surrounding said second travel passageway, and means to connect said second travel passageway to the other of the two fluid connections, said travel passageways selectively communicating with the set of manifold passageways as the device is operated.
In a gerotor hydraulic pressure device having a housing, the housing having two rotor facing flat surfaces, a stator, a rotor, the rotor having two flat axial end surfaces, a geared drive connection at the center of the rotor, gerotor cells, a set of manifold passages in the housing communicating with the gerotor cells and two fluid connections, an improved fluid control comprising a first travel passageway, said first travel passageway being a series of holes, said first travel passageway being located in the rotor, said first travel passageway extending from one end surface to the other end surface of the rotor, said first travel passageway being spaced from the axis of the rotor at both end surfaces of the rotor, first commutation means to connect said first travel passageway to one of the two fluid connections, a second travel passageway, said second travel passageway being located in the rotor, said second travel passageway being an opening in a surface of the rotor, said first travel passageway surrounding said second travel passageway, and second commutation means to connect said second travel passageway to the second of the two fluid connections, said travel passageways selectively communicating with the set of manifold passageways as the device is operated.
In a gerotor hydraulic pressure device having a housing having two rotor facing walls, a stator, a rotor, the rotor having two flat axial end surfaces, a geared drive connection at a partial through bore in the center of a flat end surface of the rotor, gerotor cells, a set of manifold passages in the housing communicating with the gerotor cells and two fluid connections, an improved fluid control comprising an annular channel, said annular channel being in one end surface of the rotor, said annular channel being spaced from the axis of the rotor, a hole or series of holes, said hole or series of holes extending from said annular channel to the other end surface of the rotor, said hole or series of holes joining the other end surface of the rotor substantially at the intersection of the other end surface of the rotor and the partial through bore therein, said hole or series of holes being spaced from the axis of the rotor at said intersection, commutation means in one rotor facing wall of the housing to connect said hole or series of holes to one of the two fluid connections, an opening, said opening being in said one end surface of the rotor, said annular channel surrounding said opening, second commutation means in the other rotor facing wall of the housing to connect said opening to the other of the two fluid connections, said annular channel and said opening selectively communicating with the set of manifold passageways as the device is operated.
Dependencies are inferred from the claim text.