Patent US4232645A successfully refreshed from Google Patents.
US4232645A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable geometry whirler
Assignee: Individual
•
Filing: 1979-03-09
•
Granted: 1980-11-11
•
Expires: 1999-03-09
Abstract
Abstract In a throttlable induction manifold of an internal combustion engine a variable geometry whirler for homogenizing an explosive charge flowing there in, during a partially closed throttle operation, the geometry of said whirler adapted to change during an open throttle operation so that the whirling action and the flow restriction associated therewith are minimized.
Inventors
- 👤 Samuel Shiber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:40
CPC Classifications
F; F02; F02M; F02M29/00; F02M29/04; F02M29/06
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
86 words
In an internal combustion engine having a combustion chamber, an induction manifold for delivering an explosive charge into said chamber and a throttle means disposed in said manifold for selectively and variably closing and restricting flow through said manifold, the improvement wherein a variable geometry whirling creating apparatus is disposed in said manifold for mixing and homogenizing said explosive charge when said throttle is partially open, said apparatus adapted to vary its geometry and to minimize its whirling creating action when said throttle is fully open.
Claim 2
Dependent Claim
86 words
In an internal combustion engine having a combustion chamber, an induction manifold for delivering an explosive charge into said chamber and a throttle means disposed in said manifold for selectively and variably closing and restricting flow through said manifold, the improvement wherein a variable geometry whirling creating apparatus is disposed in said manifold for mixing and homogenizing said explosive charge when said throttle is partially open, said apparatus adapted to vary its geometry and to minimize its whirling creating action when said throttle is fully open.
Claim 3
Dependent Claim
18 words
An apparatus as in claim 1, wherein said throttle and said apparatus are mechanically linked one to another.
Claim 4
Dependent Claim
22 words
An apparatus as in claim 1, wherein said geometry is varied according to a flow rate of said charge through said manifold.
Claim 5
Dependent Claim
20 words
An apparatus as in claim 1, wherein said geometry is varied according to a negative pressure prevailing in said manifold.
Claim 6
Dependent Claim
65 words
An apparatus as in claim 1 comprising at least two flat segments set in a parallel position to the direction of the flow through said manifold when said throttle is fully open, said segments adapted to vary their position and form an angle with said parallel position and to thereby jointly define a spiral flow path in said manifold when said throttle is partially open.
Claim 7
Dependent Claim
44 words
An apparatus as in claim 5, adapted to variably and selectively restrict flow through said manifold, and to substantially close it when said segments are set in a perpendicular position to said parallel position so that said apparatus also functions as said throttle means.
Claim 8
Dependent Claim
13 words
An apparatus as in claim 5, wherein said segment has a cresent shape.
References Cited (Backward Citations)
US1600007A
Cited
US1568410A
Cited
US2093959A
Cited
US3048378A
Cited
US3499427A
Cited
US3671208A
Cited
US4137886A
Cited
US4044077A
Cited
US4064857A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-11-11 | 1984-05-12 | 1984-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-11-11 | 1988-05-12 | 1988-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-11-11 | 1992-05-12 | 1992-11-11 | $7700.00 | Window Closed / Lapsed |