US3908623A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Advanced reciprocating engine system
Assignee: Individual
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Filing: 1974-08-23
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Granted: 1975-09-30
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Expires: 1994-08-23
Abstract
Abstract This invention relates to new and useful improvements in the mechanism comprising the piston and piston connecting rod of the reciprocating internal or external combustion engine systems. Pressure forces acting on the piston face are concentrated in an intermediate linkage and subsequently transmitted to the connecting rod which reacts as a three-force member in the form of a second-class lever system. The purpose of the invention is to increase the mechanical efficiency of such systems during the period when the crank position is near top-dead-center. This is accomplished by introducing piston forces tangentially to the longitudinal axis of the connecting rod in a manner which increases the net rotative effort applied to the crankshaft.
Inventors
- 👤 Edward M Mcwhorter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:42
CPC Classifications
F; F02; F02B; F02B41/00; F02B41/02; F02B41/04; F16; F16H; F16H21/00; F16H21/10; F16H21/16; F16H21/18; F16H21/22; F16H21/32; F02B2275/00; F02B2275/36; Y; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2142; Y10T74/2144; Y10T74/2162
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
178 words
A piston, a piston slide in slidable contact with the interior surfaces machined in the crown of said piston, a slide pin extending transversly across said piston slide each end of which is pivotally mounted in said piston slide, a connecting rod having a small journal at one end which holds said slide pin, below said small journal an opening in said connecting rod, below said opening and position to one side of the longitudinal axis of said connecting rod a second small journal on said connecting rod said second small journal holding a rod pin, a connecting link being pivotally journaled to each end of said rod pin, at the opposite end of said link a piston pin also pivotally journaled in said connecting link, said piston pin and connecting link journal pass through the said opening of said connecting rod and extend transversly across said piston, said piston pin being pivotally journaled at each end in said piston, at the opposite end of said connecting rod a large journal for rotatively mounting on an engine crankpin.
Claim 2
Dependent Claim
178 words
A piston, a piston slide in slidable contact with the interior surfaces machined in the crown of said piston, a slide pin extending transversly across said piston slide each end of which is pivotally mounted in said piston slide, a connecting rod having a small journal at one end which holds said slide pin, below said small journal an opening in said connecting rod, below said opening and position to one side of the longitudinal axis of said connecting rod a second small journal on said connecting rod said second small journal holding a rod pin, a connecting link being pivotally journaled to each end of said rod pin, at the opposite end of said link a piston pin also pivotally journaled in said connecting link, said piston pin and connecting link journal pass through the said opening of said connecting rod and extend transversly across said piston, said piston pin being pivotally journaled at each end in said piston, at the opposite end of said connecting rod a large journal for rotatively mounting on an engine crankpin.
Claim 3
Dependent Claim
186 words
A piston, a piston slide in slidable contact with the machined surfaces of an insert fixedly attached to the interior surfaces of the crown of said piston, a slide pin extending transversly across said piston slide each end of which is pivotally mounted in said piston slide, a connecting rod having a small journal at one end which holds said slide pin, below said small journal an opening in said connecting rod, below said opening and position to one side of the longitudinal axis of said connecting rod a second small journal on said connecting rod said second small journal holding a rod pin, a connecting link being pivotally journaled to each end of said rod pin, at the opposite end of said link a piston pin also pivotally journaled in said connecting link, said piston pin and connecting link journal pass through the said opening of said connecting rod and extend transversly across said piston, said piston pin being pivotally journaled at each end in said piston, at the opposite end of said connecting rod a large journal for rotatively mounting on an engine crankpin.
Claim 4
Dependent Claim
186 words
A piston, a piston slide in slidable contact with the machined surfaces of an insert fixedly attached to the interior surfaces of the crown of said piston, a slide pin extending transversly across said piston slide each end of which is pivotally mounted in said piston slide, a connecting rod having a small journal at one end which holds said slide pin, below said small journal an opening in said connecting rod, below said opening and position to one side of the longitudinal axis of said connecting rod a second small journal on said connecting rod said second small journal holding a rod pin, a connecting link being pivotally journaled to each end of said rod pin, at the opposite end of said link a piston pin also pivotally journaled in said connecting link, said piston pin and connecting link journal pass through the said opening of said connecting rod and extend transversly across said piston, said piston pin being pivotally journaled at each end in said piston, at the opposite end of said connecting rod a large journal for rotatively mounting on an engine crankpin.
Claim 5
Dependent Claim
188 words
A piston, a piston slide in slidable contact with machined surfaces in the crown of said piston a slide pin extending transversly across said piston slide each end of which is pivotally mounted in said piston slide, a connecting rod having a small journal at one end which holds said slide pin, below said small journal an opening in said connecting rod below said opening and positioned to one side of the longitudinal axis of said connecting rod cylindrical protrusions on both sides of said connecting rod forming a rod pin, the axis of said rod pin running parallel with the axis of the slide pin, a connecting link being pivotally attached to each end of said rod pin, at the opposite end of said link a piston pin also pivatally journalled in said connecting link, said piston pin and connecting link journal pass through the said opening of said connecting rod and extend transversly across said piston, said piston pin being pivotally journaled at each end in said piston, at the opposite end of said connecting rod a large journal for rotatively mounting on an engine crankpin.
Claim 6
Dependent Claim
188 words
A piston, a piston slide in slidable contact with machined surfaces in the crown of said piston a slide pin extending transversly across said piston slide each end of which is pivotally mounted in said piston slide, a connecting rod having a small journal at one end which holds said slide pin, below said small journal an opening in said connecting rod below said opening and positioned to one side of the longitudinal axis of said connecting rod cylindrical protrusions on both sides of said connecting rod forming a rod pin, the axis of said rod pin running parallel with the axis of the slide pin, a connecting link being pivotally attached to each end of said rod pin, at the opposite end of said link a piston pin also pivatally journalled in said connecting link, said piston pin and connecting link journal pass through the said opening of said connecting rod and extend transversly across said piston, said piston pin being pivotally journaled at each end in said piston, at the opposite end of said connecting rod a large journal for rotatively mounting on an engine crankpin.
References Cited (Backward Citations)
US1379115A
Cited
US1430491A
Cited
US2160012A
Cited
US2368412A
Cited
US2458111A
Cited
US3034362A
Cited
US3693463A
Cited
US3859976A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-09-29 | 1979-03-31 | 1979-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-29 | 1983-03-31 | 1983-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-29 | 1987-03-31 | 1987-09-30 | $7700.00 | Window Closed / Lapsed |