US3738337A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrically operated hydraulic valve particularly adapted for pollution-free electronically controlled internal combustion engine
Assignee: Individual
•
Filing: 1971-12-30
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Granted: 1973-06-12
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Expires: 1991-12-30
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
2026-10-26 22:03
CPC Classifications
F; F01; F01L; F01L9/00; F01L9/10
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
128 words
In an hydraulically operated valve positioned to control flow of fluid with respect to an internal combustion engine cylinder in combination: a cylinder having a piston therein connected to a valve member and movable between open and closed positions of the valve member; 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, control means for controlling the position of opening and closing of the valve with respect to crankshaft angle comprising means responsive to crankshaft position and means responsive to at least one variable which is related to an engine operating condition.
Claim 2
Dependent Claim
128 words
In an hydraulically operated valve positioned to control flow of fluid with respect to an internal combustion engine cylinder in combination: a cylinder having a piston therein connected to a valve member and movable between open and closed positions of the valve member; 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, control means for controlling the position of opening and closing of the valve with respect to crankshaft angle comprising means responsive to crankshaft position and means responsive to at least one variable which is related to an engine operating condition.
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
81 words
A device as in claim 2, wherein said cylinder has 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 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 5
Dependent Claim
38 words
A device as in claim 3, wherein said sleeve member has ports positioned to be moved into alignment with ports in said cylinder and to moved out of alignment with ports in said cylinder for controlling the flows.
Claim 6
Dependent Claim
32 words
A device as in claim 3, 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 7
Dependent Claim
26 words
A device as in claim 1, including an electro-magnetic winding associated with said sleeve member for causing said sleeve member to reciprocate relative to said cylinder.
Claim 8
Dependent Claim
29 words
A device as in claim 6, including a further cylinder spaced outwardly from said sleeve member and adapted to accommodate a flux circuit for flux from said electro-magnetic winding.
Claim 9
Dependent Claim
24 words
A device as in claim 7, wherein said electro-magnetic winding is of ring shape and is positioned around a part of said further cylinder.
Claim 10
Dependent Claim
17 words
A device as in claim 6, including spring means for urging said sleeve member in one direction.
Claim 11
Dependent Claim
33 words
A device as in claim 7, including a pair of electro-magnetic windings and a permanent magnet associated with said sleeve whereby reciprocation of said sleeve may be produced by energization of said windings.
Claim 12
Dependent Claim
38 words
A device as in claim 10, including a second pair of electro-magnetic 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 13
Dependent Claim
20 words
A device as in claim 6, wherein said sleeve member is constructed of material so as to constitute an armature.
Claim 14
Dependent Claim
25 words
A device as in claim 6, wherein said sleeve member has an end closure which is constructed of material so as to constitute an armature.
Claim 15
Dependent Claim
26 words
A device as in Claim 10, wherein said first pair of electro-magnetic windings are spaced axially from each other with a permanent magnet positioned between them.
Claim 16
Dependent Claim
27 words
A device as in claim 11, wherein said second pair of windings is positioned to surround the first pair of windings respectively to provie magnetic coupling therewith.
Claim 17
Dependent Claim
30 words
A valve as in claim 1, said valve being positioned and constructed to receive engine lubricating oil to drive the piston and to discharge lubricating oil into the engine crankcase.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-06-11 | 1976-12-11 | 1977-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-11 | 1980-12-11 | 1981-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-11 | 1984-12-11 | 1985-06-12 | $7700.00 | Window Closed / Lapsed |