US3823697A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multicylinder motor or engine with double-acting pistons
Assignee: BEKAMA AG
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Filing: 1972-04-17
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Granted: 1974-07-16
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Expires: 1992-04-17
Abstract
Abstract An internal-combustion engine or fluid (pneumatic or hydraulic) motor has a fixed central shaft formed with a sun gear, and a housing rotatable around the shaft. This housing is formed with a plurality of bores each subdivided into two compression chambers by a double-acting piston which is displaceable along an axis parallel or transverse to the shaft axis. Each piston is connected by a crank to a pinion which acts as a planet gear meshing with the sun gear so that reciprocation of the piston causes the planet gear to rotate, thereby entraining the housing about the fixed shaft. Alternatively the device may be driven mechanically to operate it as a pump.
Inventors
- 👤 Esch P Von
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 03:25
CPC Classifications
F; F02; F02B; F02B75/00; F02B75/26; F02B75/265; F02B1/00; F02B1/02; F02B1/04; F02B75/002
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
144 words
A multiple cylinder machine comprising: an axially extending nonrotatable axle; an annular housing rotatable about said axle and formed with at least one chamber; a piston reciprocable in said chamber and defining therein two independent cylinders; first bores formed in said axle and extending axially therealong for conducting a drive medium to said cylinders; second bores formed in said axle and extending axially therealong for conducting an exhaust medium from said cylinders; third bores formed in said axle and extending axially therealong for circulating a coolant therethrough, said housing being formed with passages selectively communicating between said cylinders and said first and second bores; a nonrotatable sun gear mounted on said body; a crankshaft having a crank connected to said piston whereby reciprocation of said piston rotates said crankshaft; and a planet gear rotationally fixed to said crankshaft and meshing with said sun gear.
Claim 2
Dependent Claim
144 words
A multiple cylinder machine comprising: an axially extending nonrotatable axle; an annular housing rotatable about said axle and formed with at least one chamber; a piston reciprocable in said chamber and defining therein two independent cylinders; first bores formed in said axle and extending axially therealong for conducting a drive medium to said cylinders; second bores formed in said axle and extending axially therealong for conducting an exhaust medium from said cylinders; third bores formed in said axle and extending axially therealong for circulating a coolant therethrough, said housing being formed with passages selectively communicating between said cylinders and said first and second bores; a nonrotatable sun gear mounted on said body; a crankshaft having a crank connected to said piston whereby reciprocation of said piston rotates said crankshaft; and a planet gear rotationally fixed to said crankshaft and meshing with said sun gear.
Claim 3
Dependent Claim
42 words
The machine defined in claim 1 wherein said piston is reciprocable along a piston axis defining a plane on rotation of said housing about said axle, said plane being orthogonal to the rotation axis of said housing, said gears being spur gears.
Claim 4
Dependent Claim
33 words
The machine defined in claim 2 wherein said piston is one of an array of such pistons each having a respective crank, crankshaft, planet gear, and piston axis, said piston axes being coplanar.
Claim 5
Dependent Claim
41 words
The machine defined in claim 3, further comprising a second such array axially spaced on said axle from the first-mentioned array and having pistons whose rotation axes lie in a second plane parallel to the first-mentioned plane of the first array.
Claim 6
Dependent Claim
26 words
The machine defined in claim 1 wherein said piston has a reciprocation axis parallel to the rotation axis of said housing, said gears being bevel gears.
Claim 7
Dependent Claim
41 words
The machine defined in claim 5 wherein said piston is part of an array of such pistons having respective cranks, crankshafts, planet gears, and reciprocation axes, said reciprocation axes being parallel to and equispaced around said rotation axis of said housing.
Claim 8
Dependent Claim
109 words
A multiple cylinder machine comprising: a nonrotatable body; a housing rotatable about said body and formed with at least one chamber; a piston reciprocable in said chamber and defining therein two independent cylinders; means in said body and in said housing for conducting a drive medium to and from said cylinders; a nonrotatable sun gear mounted on said body; a crankshaft having a crank connected to said piston whereby reciprocation of said piston rotates said cranksahft; and a planet gear rotationally fixed to said crankshaft and meshing with said sun gear, said piston being formed with a groove transverse to its reciprocation axis, said crank riding in said groove.
Claim 9
Dependent Claim
109 words
A multiple cylinder machine comprising: a nonrotatable body; a housing rotatable about said body and formed with at least one chamber; a piston reciprocable in said chamber and defining therein two independent cylinders; means in said body and in said housing for conducting a drive medium to and from said cylinders; a nonrotatable sun gear mounted on said body; a crankshaft having a crank connected to said piston whereby reciprocation of said piston rotates said cranksahft; and a planet gear rotationally fixed to said crankshaft and meshing with said sun gear, said piston being formed with a groove transverse to its reciprocation axis, said crank riding in said groove.
Claim 10
Dependent Claim
18 words
The machine defined in claim 7 wherein said crank is provided with a roller engaging in said groove.
Claim 11
Dependent Claim
32 words
The machine defined in claim 8 wherein said roller is one of a pair of rollers, said groove having a pair of hardened linings each engaging a respective one of said rollers.
Claim 12
Dependent Claim
25 words
The machine defined in claim 1, further comprising a piston rod having one end pivoted on said crank and another end pivoted on said piston.
Claim 13
Dependent Claim
75 words
The machine defined in claim 1 wherein said piston is one of at least four pistons having respective cranks, crankshafts, planet gears, and reciprocation axes arrayed about the rotation axis of said housing with said reciprocation axes lying in a common plane orthogonal to said rotation axis, each chamber communicating with the adjacent chamber of the adjacent piston, said gears being arranged to reciprocally displace adjacent pistons in opposite directions on rotation of said housing.
Claim 14
Dependent Claim
72 words
The machine defined in claim 1 wherein said passages and bores include at least one exhaust passage and bore, and two independent inlet bores with respective independent boreS, said machine further comprising means for feeding a rich gas-air mixture to one of said inlet bores and a less rich gas-air mixture to the other inlet bore, said gas-air mixtures being combustible fluids constituting said fluid medium, whereby said machine has stratified carburation.
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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) | 1977-07-15 | 1978-01-14 | 1978-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-15 | 1982-01-14 | 1982-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-15 | 1986-01-14 | 1986-07-16 | $7700.00 | Window Closed / Lapsed |