US3799206A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluidic pulse generator for internal combustion engines
Assignee: Denso Corp
•
Filing: 1971-03-18
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Granted: 1974-03-26
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Expires: 1991-03-18
Abstract
Abstract A fluidic pulse generator wherein a fluid passage in the form of a recess or through-hole is formed in a rotary shaft slidingly rotatable in a casing of an ignition interrupter but not movable axially, and two conduits which can be communicated with each other through said fluid passage are connected to said casing with one ends thereof open in said casing. When pressurized fluid is supplied into one of the conduits, the flow of pressurized fluid is interrupted intermittently, whereby fluidic trigger pulses are generated.
Inventors
- 👤 K Matsui
- 👤 H Tsubouchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:53
CPC Classifications
F; F15; F15C; F15C1/00; F15C1/002; F02; F02D; F02D9/00; F02D2700/00; F02D2700/02; F02D2700/0217; F02D2700/0225; F02D2700/0228; F02D2700/023; F02D2700/0233; Y; Y10; Y10T; Y10T137/00; Y10T137/206; Y10T137/218; Y10T137/2202; Y10T137/2207
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
95 words
A fluidic pulse generator for use with a fluidic multivibrator in an internal combustion engine including an ignition spark distributor having a housing and a shaft which rotates in said housing in synchronism with the engine rotation; said housing having a member provided with inlet and outlet ports respectively coupling a supply of air under pressure from the inlet to the outlet port, and said shaft having a bore therethrough and airtightly but rotatably coupling with said member for intermittently communicating with the inlet and outlet ports simultaneously for each revolution of the distributor shaft.
Claim 2
Dependent Claim
95 words
A fluidic pulse generator for use with a fluidic multivibrator in an internal combustion engine including an ignition spark distributor having a housing and a shaft which rotates in said housing in synchronism with the engine rotation; said housing having a member provided with inlet and outlet ports respectively coupling a supply of air under pressure from the inlet to the outlet port, and said shaft having a bore therethrough and airtightly but rotatably coupling with said member for intermittently communicating with the inlet and outlet ports simultaneously for each revolution of the distributor shaft.
Claim 3
Dependent Claim
41 words
The fluidic pulse generator of claim 1 wherein a plurality of bores is supplied to said distributor shaft for selectively communicating said inlet and outlet ports for a portion of the rotational cycle of said distributor shaft at different selected intervals.
References Cited (Backward Citations)
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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) | 1977-03-25 | 1977-09-24 | 1978-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-25 | 1981-09-24 | 1982-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-25 | 1985-09-24 | 1986-03-26 | $7700.00 | Window Closed / Lapsed |