US3844528A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrically operated hydraulic valve particularly adapted for pollution-free electronically controlled internal combustion engine
Assignee: Individual
•
Filing: 1972-12-15
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Granted: 1974-10-29
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Expires: 1992-12-15
Abstract
Abstract An electrically operated hydraulically driven valve driven by internal combustion engine lubricating oil. A ported valve sleeve is positioned between inner and outer cylinders, the inner of which is the hydraulic valve operating cylinder. All concentric members have radial ports. The electrically operated sleeve member controls the porting controlling the inflow and outflow of hydraulic liquid. The control sleeve is moved electromagnetically by way of electromagnetic windings combined with a permanent magnet adapting the operation to pulse type of digital control adapting the valve to electronic digital control from multiple variable inputs.
Inventors
- 👤 P Massie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:16
CPC Classifications
F; F01; F01L; F01L9/00; F01L9/10
Claims Analysis
Total Claims: 29
Claim 1
Independent Claim
170 words
In an hydraulically operated valve in combination: a cylinder having a piston therein connected to a valve member said piston being reciprocatable between a first position whereat said valve member is positioned in its closed position and a second position whereat said valve member is positioned in its open position; means comprising a valve sleeve member cooperable with said cylinder, said valve sleeve member and cylinder having mutually cooperable porting providing for flow of hydraulic fluid to and from opposite sides of said piston for moving said valve member through its stroke in opposite directions said cylinder having ports for admitting hydraulic fluid to one side of said piston for moving it in one direction and ports for relieving pressure from one side of said piston, said cylinder also having ports for admitting fluid to the opposite side of said piston and ports for withdrawing fluid from the opposite side of said piston, said sleeve member being operative to control all of said ports for causing said piston to reciprocate.
Claim 2
Dependent Claim
170 words
In an hydraulically operated valve in combination: a cylinder having a piston therein connected to a valve member said piston being reciprocatable between a first position whereat said valve member is positioned in its closed position and a second position whereat said valve member is positioned in its open position; means comprising a valve sleeve member cooperable with said cylinder, said valve sleeve member and cylinder having mutually cooperable porting providing for flow of hydraulic fluid to and from opposite sides of said piston for moving said valve member through its stroke in opposite directions said cylinder having ports for admitting hydraulic fluid to one side of said piston for moving it in one direction and ports for relieving pressure from one side of said piston, said cylinder also having ports for admitting fluid to the opposite side of said piston and ports for withdrawing fluid from the opposite side of said piston, said sleeve member being operative to control all of said ports for causing said piston to reciprocate.
Claim 3
Dependent Claim
23 words
A device as in claim 1, including means to reciprocate said sleeve member relative to said cylinder, to cause said piston to reciprocate.
Claim 4
Dependent Claim
38 words
A device as in claim 1, wherein said sleeve member has ports positioned to be moved into alignment with ports in said cylinder and to move out of alignment with ports in said cylinder for controlling the flows.
Claim 5
Dependent Claim
32 words
A device as in claim 1, wherein said ports include a port in an end wall of said cylinder and said sleeve member having a part cooperating with said end wall port.
Claim 6
Dependent Claim
26 words
A device as in claim 1, including an electromagnetic winding associated with said sleeve member for causing said sleeve member to reciprocate relative to said cylinder.
Claim 7
Dependent Claim
29 words
A device as in claim 5, including a further cylinder spaced outwardly from said sleeve member and adapted to accommodate a flux circuit for flux from said electromagnetic winding.
Claim 8
Dependent Claim
24 words
A device as in claim 6, wherein said electromagnetic winding is of ring shape and is positioned around a part of said further cylinder.
Claim 9
Dependent Claim
17 words
A device as in claim 5, including spring means for urging said sleeve member in one direction.
Claim 10
Dependent Claim
33 words
A device as in claim 6, including a pair of electromagnetic windings and a permanent magnet associated with said sleeve whereby reciprocation of said sleeve may be produced by energization of said windings.
Claim 11
Dependent Claim
38 words
A device as in claim 9, including a second pair of electromagnetic windings coupled with said first pair whereby said device is adapted to pulse type digital control from a driving circuit having connections to all four windings.
Claim 12
Dependent Claim
20 words
A device as in claim 5, wherein said sleeve member is constructed of material so as to constitute an armature.
Claim 13
Dependent Claim
25 words
A device as in claim 5, wherein said sleeve member has an end closure which is constructed of material so as to constitute an armature.
Claim 14
Dependent Claim
26 words
A device as in claim 9, wherein said first pair of electromagnetic windings are spaced axially from each other with a permanent magnet positioned between them.
Claim 15
Dependent Claim
27 words
A device as in claim 10, wherein said second pair of windings is positioned to surround the first pair of windings respectively to provide magnetic coupling therewith.
Claim 16
Dependent Claim
123 words
In an hydraulically operated valve in combination a cylinder having a piston therein connected to a valve member, said piston being movable between a first position whereat said valve member is positioned in its closed position and a second position whereat said valve member is positioned in its open position, means comprising a valve sleeve member cooperable with said cylinder, said valve sleeve member and cylinder having a mutually cooperable porting providing for flow of hydraulic fluid to and from opposite sides of said piston for moving said valve member through its stroke in opposite directions, and a pair of electromagnetic windings and a permanent magnet associated with said sleeve whereby reciprocation of said sleeve may be produced by energization of said windings.
Claim 17
Dependent Claim
123 words
In an hydraulically operated valve in combination a cylinder having a piston therein connected to a valve member, said piston being movable between a first position whereat said valve member is positioned in its closed position and a second position whereat said valve member is positioned in its open position, means comprising a valve sleeve member cooperable with said cylinder, said valve sleeve member and cylinder having a mutually cooperable porting providing for flow of hydraulic fluid to and from opposite sides of said piston for moving said valve member through its stroke in opposite directions, and a pair of electromagnetic windings and a permanent magnet associated with said sleeve whereby reciprocation of said sleeve may be produced by energization of said windings.
Claim 18
Dependent Claim
29 words
A device as in claim 15, including a further cylinder spaced outwardly from said sleeve member and adapted to accommodate a flux circuit for flux from said electromagnetic winding.
Claim 19
Dependent Claim
38 words
A device as in claim 15, including a second pair of electromagnetic windings coupled with said first pair whereby said device is adapted to pulse type digital control from a driving circuit having connections to all four windings.
Claim 20
Dependent Claim
26 words
A device as in claim 15, wherein said first pair of electromagnetic windings are spaced axially from each other with a permanent magnet positioned between them.
Claim 21
Dependent Claim
27 words
A device as in claim 17, wherein said second pair of windings is positioned to surround the first pair of windings respectively to provide magnetic coupling therewith.
Claim 22
Dependent Claim
128 words
In an hydraulically operated valve in combination: a cylinder having a piston therein connected to a valve member, said piston being movable between a first position whereat said valve member is positioned in its closed position and a second position whereat said valve member is positioned in its open position, means comprising a valve sleeve member cooperable with said cylinder, said valve sleeve member and cylinder having mutually cooperable porting providing for flow of hydraulic fluid to and from opposite sides of said piston for moving said valve member through its stroke in opposite directions, and an electromagnetic winding associated with said sleeve member for causing said sleeve member to reciprocate relative to said cylinder, said sleeve member being constructed of material so as to constitute an armature.
Claim 23
Dependent Claim
128 words
In an hydraulically operated valve in combination: a cylinder having a piston therein connected to a valve member, said piston being movable between a first position whereat said valve member is positioned in its closed position and a second position whereat said valve member is positioned in its open position, means comprising a valve sleeve member cooperable with said cylinder, said valve sleeve member and cylinder having mutually cooperable porting providing for flow of hydraulic fluid to and from opposite sides of said piston for moving said valve member through its stroke in opposite directions, and an electromagnetic winding associated with said sleeve member for causing said sleeve member to reciprocate relative to said cylinder, said sleeve member being constructed of material so as to constitute an armature.
Claim 24
Dependent Claim
133 words
In an hydraulically operated valve in combination: a cylinder having a piston therein connected to a valve member, said piston being movable between a first position whereat said valve member is positioned in its closed position and a second position whereat said valve member is positioned in its open position, means comprising a valve sleeve member cooperable with said cylinder, said valve sleeve member and cylinder having mutually cooperable porting providing for flow of hydraulic fluid to and from opposite sides of said piston for moving said valve member through its stroke in opposite directions, and an electromagnetic winding associated with said sleeve member for causing said sleeve member to reciprocate relative to said cylinder, said sleeve member having an end closure which is constructed of material so as to constitute an armature
Claim 25
Dependent Claim
133 words
In an hydraulically operated valve in combination: a cylinder having a piston therein connected to a valve member, said piston being movable between a first position whereat said valve member is positioned in its closed position and a second position whereat said valve member is positioned in its open position, means comprising a valve sleeve member cooperable with said cylinder, said valve sleeve member and cylinder having mutually cooperable porting providing for flow of hydraulic fluid to and from opposite sides of said piston for moving said valve member through its stroke in opposite directions, and an electromagnetic winding associated with said sleeve member for causing said sleeve member to reciprocate relative to said cylinder, said sleeve member having an end closure which is constructed of material so as to constitute an armature
Claim 26
Dependent Claim
110 words
In an hydraulically operated valve, the combination comprising: a cylinder having a piston therein connected to a valve member, said piston being reciprocatable between a first position whereat said valve member is positioned in its closed position and a second position whereat said valve member is positioned in its open position whereat said valve member is positioned in its open position, a valve sleeve member slidably mounted around said cylinder to cooperate therewith, said valve sleeve member and cylinder having mutually cooperable porting means providing for selective flow of hydraulic fluid to and from opposite sides of said piston for moving said valve member between its first and second positions.
Claim 27
Dependent Claim
110 words
In an hydraulically operated valve, the combination comprising: a cylinder having a piston therein connected to a valve member, said piston being reciprocatable between a first position whereat said valve member is positioned in its closed position and a second position whereat said valve member is positioned in its open position whereat said valve member is positioned in its open position, a valve sleeve member slidably mounted around said cylinder to cooperate therewith, said valve sleeve member and cylinder having mutually cooperable porting means providing for selective flow of hydraulic fluid to and from opposite sides of said piston for moving said valve member between its first and second positions.
Claim 28
Dependent Claim
33 words
A device as in claim 22, including a pair of electromagnetic windings and a permanent magnet associated with said sleeve whereby reciprocation of said sleeve may be produced by energization of said windings.
Claim 29
Dependent Claim
38 words
A device as in claim 23 including a second pair of electromagnetic windings coupled with said first paiR whereby said device is adapted to pulse type digital control from a driving circuit having connections to all four windings.
References Cited (Backward Citations)
US1829708A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-10-28 | 1978-04-29 | 1978-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-28 | 1982-04-29 | 1982-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-28 | 1986-04-29 | 1986-10-29 | $7700.00 | Window Closed / Lapsed |