Patent US3585975A successfully refreshed from Google Patents.
US3585975A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid-operated rpm regulator for internal combustion engines
Assignee: Bosch Corp
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Filing: 1969-06-06
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Granted: 1971-06-22
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Expires: 1989-06-06
Abstract
Abstract In a fluid-operated r.p.m. regulator, in which the output channels of a fluid amplifier element carry r.p.m.-proportionate pressures applied to both sides of a fuel control rod to displace the same for varying the r.p.m., the transitional period between the moment of change (e.g. increase or decrease in the engine load) and the moment of stabilization of the automatically adjusted new r.p.m. is decreased by the provision, between said amplifier element and said rod, of components which respond to a change in said r.p.m.-proportionate pressures by generating an output flow of increased pressure in one of the output channels of a component and switching said output flow to another output channel thereof after a predetermined interval.
Inventors
- 👤 Hiroshi Tonegawa
- 👤 Tadayuki Kawasaki
- 👤 Kenji Nakayama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:08
CPC Classifications
G; G05; G05D; G05D13/00; F; F15; F15C; F15C1/00; F15C1/002; Y; Y10; Y10S; Y10S123/00; Y10S123/10; Y10T; Y10T137/00; Y10T137/206; Y10T137/2065; Y10T137/2071; Y10T137/212; Y10T137/2125; Y10T137/2142
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
205 words
In a fluid-operated r.p.m. regulator for internal combustion engines, said regulator being of the type that includes (A) a fluid logic element having a plurality of output channels carrying output flows of r.p.m.-responsive pressures, (B) a first fluid amplifier element controlled by said output flows and by an arbitrarily adjustable fluid flow of constant pressure and (C) a pressure difference-responsive actuator to which the output flows of said amplifier element are applied for displacing a fuel quantity control member, the improvement comprising a component formed of A. at least one second fluid amplifier element having 1. a plurality of oppositely working input or control channels and 2. a plurality of output channels and B. delay means coupled to at least one of said input channels for admitting therethrough a delayed pressure signal to said second fluid amplifier element to switch the output flow, caused by a pressure signal admitted precedIngly through an opposing input channel, from one output channel of said second fluid amplifier element into another output channel thereof; the output channels of said first fluid amplifier element being connected to input channels of said second fluid amplifier element, the output channels of said second fluid amplifier element being operatively coupled with said actuator.
Claim 2
Dependent Claim
205 words
In a fluid-operated r.p.m. regulator for internal combustion engines, said regulator being of the type that includes (A) a fluid logic element having a plurality of output channels carrying output flows of r.p.m.-responsive pressures, (B) a first fluid amplifier element controlled by said output flows and by an arbitrarily adjustable fluid flow of constant pressure and (C) a pressure difference-responsive actuator to which the output flows of said amplifier element are applied for displacing a fuel quantity control member, the improvement comprising a component formed of A. at least one second fluid amplifier element having 1. a plurality of oppositely working input or control channels and 2. a plurality of output channels and B. delay means coupled to at least one of said input channels for admitting therethrough a delayed pressure signal to said second fluid amplifier element to switch the output flow, caused by a pressure signal admitted precedIngly through an opposing input channel, from one output channel of said second fluid amplifier element into another output channel thereof; the output channels of said first fluid amplifier element being connected to input channels of said second fluid amplifier element, the output channels of said second fluid amplifier element being operatively coupled with said actuator.
Claim 3
Dependent Claim
19 words
a second output connected through another of said delay means to other of said oppositely working second input channels.
Claim 4
Dependent Claim
19 words
a second output connected through another of said delay means to other of said oppositely working second input channels.
Claim 5
Dependent Claim
6 words
two oppositely working second input channels,
Claim 6
Dependent Claim
6 words
two oppositely working second input channels,
Claim 7
Dependent Claim
96 words
An improvement as defined in claim 1, wherein said component is formed of a first and a second part, each including one said second fluid amplifier element; the input channels of the second fluid amplifier element of said first part are connected to one output of said first fluid amplifier element and the input channels of the second fluid amplifier element of said second part are connected to another output of said first fluid amplifier element; one input channel of said second fluid amplifier element of each part is coupled to one of said delay means.
Claim 8
Dependent Claim
98 words
a plurality of output channels and B. delay means coupled to at least one of said input channels for admitting therethrough a delayed pressure signal to said second fluid amplifier element to switch the output flow, caused by a pressure signal admitted precedIngly through an opposing input channel, from one output channel of said second fluid amplifier element into another output channel thereof; the output channels of said first fluid amplifier element being connected to input channels of said second fluid amplifier element, the output channels of said second fluid amplifier element being operatively coupled with said actuator.
Claim 9
Dependent Claim
98 words
a plurality of output channels and B. delay means coupled to at least one of said input channels for admitting therethrough a delayed pressure signal to said second fluid amplifier element to switch the output flow, caused by a pressure signal admitted precedIngly through an opposing input channel, from one output channel of said second fluid amplifier element into another output channel thereof; the output channels of said first fluid amplifier element being connected to input channels of said second fluid amplifier element, the output channels of said second fluid amplifier element being operatively coupled with said actuator.
Claim 10
Dependent Claim
41 words
two output channels operatively connected to said actuator, B. at least one third fluid amplifier element for amplifying at least part of the signals in said output channels of said sole second fluid amplifier element, said third fluid amplifier element has
Claim 11
Dependent Claim
41 words
two output channels operatively connected to said actuator, B. at least one third fluid amplifier element for amplifying at least part of the signals in said output channels of said sole second fluid amplifier element, said third fluid amplifier element has
Claim 12
Dependent Claim
71 words
An improvement as defined in claim 1, including a relatively short fluid conduit connecting an output of said first fluid amplifier element with one of said input channels of said second fluid amplifier element and a relatively long fluid conduit connecting the same output of said first fluid amplifier element with another of said input channels of said second fluid amplifier element; said relatively long fluid conduit constitutes said delay means.
Claim 13
Dependent Claim
36 words
An improvement as in claim 1, wherein said delay means includes a fluid capacitor connected between the output of said first fluid amplifier element and one of said input channels of said second fluid amplifier element.
Claim 14
Dependent Claim
19 words
An improvement as defined in claim 1, wherein said component comprises A. a sole second fluid amplifier element having
Claim 15
Dependent Claim
61 words
An improvement as defined in claim 5, wherein said delay means is formed of two fluid capacitors, one is connected between an output of said third fluid amplifier element and one of said oppositely working second input channels, the other is connected between another output of said third fluid amplifier element and the other of said oppositely working second input channels.
References Cited (Backward Citations)
US2900969A
Cited
US3292648A
Cited
US3266510A
Cited
US3463176A
Cited
US3484889A
Cited
US3461892A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-21 | 1974-12-21 | 1975-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-21 | 1978-12-21 | 1979-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-21 | 1982-12-21 | 1983-06-22 | $7700.00 | Window Closed / Lapsed |