Patent EP0589708A2 successfully refreshed from Google Patents.
US4969332A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Controller for a three-wheel turbocharger
Assignee: Honeywell International Inc
•
Filing: 1989-01-27
•
Granted: 1990-11-13
•
Expires: 2009-01-27
Abstract
Abstract A controller for a three-wheel turbocharger is shown for receiving input parameters including: throttle or rack position, manifold absolute pressure, airflow (either mass or volume), and engine RPM. The controller may also use an accumulator. The operating parameters are used by the controller to control the amount of hydraulic fluid applied to the third hydraulic turbine wheel of the turbocharger through various operational modes including: pump bypass, power transfer, lugging or override, and accumulator charging modes. The controller is designed so that power transfer may be overridden when engine load sensed by manifold absolute pressure or airflow or throttle position is reduced.
Inventors
- 👤 James H. Nancarrow
- 👤 Fredrick E. Burdette
- 👤 George A. Adeff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:17
CPC Classifications
F; F02; F02B; F02B37/00; F02B37/04; F02B37/10; F02B37/12; F01; F01D; F01D15/00; F01D15/08; F02B37/14; F02B39/00; F02B39/02; F02B39/08; F02B39/14; F02D; F02D41/00; F02D41/0002; F02D41/0007; F02B1/00; F02B1/02; F02B1/04; F05; F05D; F05D2220/00; F05D2220/40; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 32
Claim 1
Independent Claim
185 words
In a three-wheel turbocharger for use with an internal combustion engine having a shaft that rotatably supports a turbine wheel for exhaust gas, a compressor wheel for input air, and a third turbine wheel for hydraulic fluid, wherein the improvement comprises: a controller for controlling the flow of hydraulic fluid to said third wheel of said three-wheel turbocharger by receiving a plurality of operating parameters relating to the conditions of said internal combustion engine; adjustable position means for accelerating the revolutions per minute of said engine; means for applying an indication of the position of said adjustable position means and of the revolutions per minute of said engine as two of said plurality of operating parameters to said controller; pressure sensitive means for sensing the load on said engine; means for applying an indication of the pressure at said pressure sensitive means as another of said plurality of operating parameters to said controller; and said controller including means for overriding said adjustable position means for accelerating said engine when said pressure sensitive means for sensing the load on said engine indicate said load is decreasing.
Claim 2
Dependent Claim
185 words
In a three-wheel turbocharger for use with an internal combustion engine having a shaft that rotatably supports a turbine wheel for exhaust gas, a compressor wheel for input air, and a third turbine wheel for hydraulic fluid, wherein the improvement comprises: a controller for controlling the flow of hydraulic fluid to said third wheel of said three-wheel turbocharger by receiving a plurality of operating parameters relating to the conditions of said internal combustion engine; adjustable position means for accelerating the revolutions per minute of said engine; means for applying an indication of the position of said adjustable position means and of the revolutions per minute of said engine as two of said plurality of operating parameters to said controller; pressure sensitive means for sensing the load on said engine; means for applying an indication of the pressure at said pressure sensitive means as another of said plurality of operating parameters to said controller; and said controller including means for overriding said adjustable position means for accelerating said engine when said pressure sensitive means for sensing the load on said engine indicate said load is decreasing.
Claim 3
Dependent Claim
12 words
The turbocharger of claim 1, wherein: said controller is a hydraulic controller.
Claim 4
Dependent Claim
12 words
The turbocharger of claim 1, wherein: said controller is an electronic controller.
Claim 5
Dependent Claim
12 words
The turbocharger of claim 3, wherein: said electronic controller is a computer.
Claim 6
Dependent Claim
24 words
The turbocharger of claim 4, wherein: said computer is integrated with an engine management computer for the vehicle in which the engine is mounted.
Claim 7
Dependent Claim
26 words
The turbocharger of claim 1, wherein: said engine is a diesel engine and said adjustable position means for accelerating said engine is a rack control valve.
Claim 8
Dependent Claim
24 words
The turbocharger of claim 1, wherein: said engine is a gasoline engine and said adjustable position means for accelerating said engine is a throttle.
Claim 9
Dependent Claim
44 words
The turbocharger of claim 1, wherein: said pressure sensitive means for sensing the load on said engine is a boost limiter valve having a pressure sensitive diaphragm connected to sense the absolute pressure of the charge air supplied to said engine by said turbocharger.
Claim 10
Dependent Claim
61 words
The turbocharger of claim 1, additionally comprising: a high pressure pump having an input and an output; an accumulator connected to said pump output to receive said hydraulic fluid which drives said third turbine wheel; and a valve for supplying said hydraulic fluid to said third turbine wheel and in the alternative, back to said input of said high pressure pump.
Claim 11
Dependent Claim
100 words
The turbocharger of claim 9, wherein: said controller is a hydraulic controller; said valve is a bypass valve connected to pass said hydraulic fluid back to said input of said pump; said controller includes means for applying said hydraulic fluid in said accumulator to said third turbine wheel when said adjustable position means for accelerating said engine is actuated; and said controller further includes means for locking said bypass valve closed when said adjustable position means for accelerating said engine is actuated for applying said hydraulic fluid from said high pressure pump and said accumulator to said third hydraulic wheel.
Claim 12
Dependent Claim
72 words
The turbocharger of claim 9, wherein: said controller is an electrical controller; said valve is a proportional valve connected to pass said hydraulic fluid back to said input of said pump and to said third turbine wheel; said controller including means for adjusting the setting of said proportional valve in response to said adjustable position means for accelerating said engine and said pressure sensitive means for sensing the load on said engine.
Claim 13
Dependent Claim
49 words
The turbocharger of claim 1, wherein: said adjustable position means for accelerating the revolutions per minute of said engine further includes an on-off control function in said controller; and said pressure sensitive means for sensing the load on said engine further includes a modulating control function in said controller.
Claim 14
Dependent Claim
26 words
The turbocharger of claim 1, wherein: said third turbine wheel is driven by a plurality of nozzles for directing said hydraulic fluid onto said third wheel.
Claim 15
Dependent Claim
27 words
The turbocharger of claim 13, wherein: said plurality of nozzles include two or more spring loaded nozzles each actuated by a different pressure of said hydraulic fluid.
Claim 16
Dependent Claim
140 words
In a three-wheel turbocharger having a shaft that rotatably supports a turbine wheel for exhaust gas, a compressor wheel for input air, and a third turbine wheel for hydraulic fluid wherein the improvement comprises: a pump having an input and an output for supplying hydraulic fluid to said third wheel; an accumulator connected to receive said hydraulic fluid from said output of said pump; a proportioning valve connected to receive said hydraulic fluid from said output of said pump and from said accumulator; an electronic controller connected to said proportioning valve; said proportioning valve connected to supply said hydraulic fluid to said third turbine wheel and to said input of said pump in response to signals from said electronic controller; and said proportioning valve connected to a plurality of nozzles for directing said hydraulic fluid onto said third turbine wheel.
Claim 17
Dependent Claim
140 words
In a three-wheel turbocharger having a shaft that rotatably supports a turbine wheel for exhaust gas, a compressor wheel for input air, and a third turbine wheel for hydraulic fluid wherein the improvement comprises: a pump having an input and an output for supplying hydraulic fluid to said third wheel; an accumulator connected to receive said hydraulic fluid from said output of said pump; a proportioning valve connected to receive said hydraulic fluid from said output of said pump and from said accumulator; an electronic controller connected to said proportioning valve; said proportioning valve connected to supply said hydraulic fluid to said third turbine wheel and to said input of said pump in response to signals from said electronic controller; and said proportioning valve connected to a plurality of nozzles for directing said hydraulic fluid onto said third turbine wheel.
Claim 18
Dependent Claim
13 words
The turbocharger of claim 15, wherein: said pump is a variable volume pump.
Claim 19
Dependent Claim
26 words
The turbocharger of claim 15, wherein said electronic controller is integrated with an engine management computer for the vehicle in which the turbo charger is mounted.
Claim 20
Dependent Claim
27 words
The turbocharger of claim 15, wherein: said plurality of nozzles include two or more spring loaded nozzles, each activated by a different pressure of said hydraulic fluid.
Claim 21
Dependent Claim
150 words
A controller for a three-wheel turbocharger that is used to supply high pressure hydraulic fluid to said third wheel to accelerate said turbocharger and increase the density of charge air supplied to an engine, comprising: adjustable position means for accelerating the revolutions per minute of said engine and for applying an indication of said adjustable position to said controller; pressure sensitive means for sensing the load of said engine and for applying an indication of said pressure to said controller; an accumulator for said hydraulic fluid that retains said fluid under said high pressure and releases said high pressure fluid to said third wheel when said adjustable position means for accelerating said engine are activated; and means for overriding said adjustable position means for accelerating said engine and said release of high pressure when said pressure sensitive means for sensing the load on said engine indicate said load is decreasing.
Claim 22
Dependent Claim
150 words
A controller for a three-wheel turbocharger that is used to supply high pressure hydraulic fluid to said third wheel to accelerate said turbocharger and increase the density of charge air supplied to an engine, comprising: adjustable position means for accelerating the revolutions per minute of said engine and for applying an indication of said adjustable position to said controller; pressure sensitive means for sensing the load of said engine and for applying an indication of said pressure to said controller; an accumulator for said hydraulic fluid that retains said fluid under said high pressure and releases said high pressure fluid to said third wheel when said adjustable position means for accelerating said engine are activated; and means for overriding said adjustable position means for accelerating said engine and said release of high pressure when said pressure sensitive means for sensing the load on said engine indicate said load is decreasing.
Claim 23
Dependent Claim
43 words
The controller of claim 19, wherein: said adjustable position means for accelerating said engine includes an on-off control provided by said controller; and said means for overriding said adjustable position means for accelerating said engine is a modulated control provided by said controller.
Claim 24
Dependent Claim
55 words
The controller of claim 19, additionally comprising: a bypass valve for passing said high pressure fluid around said three-wheel turbine when said adjustable position means for accelerating said engine is indicating the absence of acceleration or when said pressure sensitive means for sensing the load on said engine is indicating the absence of a load.
Claim 25
Dependent Claim
34 words
The controller of claim 21, additionally comprising: said adjustable position means for accelerating said engine include means for locking said bypass valve closed to prevent said high pressure fluid from passing therethrough during acceleration.
Claim 26
Dependent Claim
12 words
The controller of claim 19, wherein: said controller is a hydraulic controller.
Claim 27
Dependent Claim
12 words
The controller of claim 19, wherein: said controller is an electronic controller.
Claim 28
Dependent Claim
12 words
The controller of claim 24, wherein: said electronic controller is a computer.
Claim 29
Dependent Claim
24 words
The controller of claim 25, wherein: said computer is integrated with an engine management computer for the vehicle in which the engine is mounted.
Claim 30
Dependent Claim
26 words
The controller of claim 19, wherein: said engine is a diesel engine and said adjustable position means for accelerating said engine is a rack control valve.
Claim 31
Dependent Claim
24 words
The controller of claim 19, wherein: said engine is a gasoline engine and said adjustable position means for accelerating said engine is a throttle.
Claim 32
Dependent Claim
44 words
The controller of claim 19, wherein: said pressure sensitive means for sensing the load on said engine is a boost limiter valve having a pressure sensitive diaphragm connected to sense the absolute pressure of the charge air supplied to said engine by said turbocharger.
References Cited (Backward Citations)
US2968914A
Cited
US2957463A
Cited
US3805754A
Cited
US4285200A
Cited
US4322949A
Cited
DE3008181A1
Cited
JPS5810114A
Cited
US4444014A
Cited
US4478043A
Cited
US4572125A
Cited
US4622817A
Cited
US4803969A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-11-12 | 1994-05-14 | 1994-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-11-12 | 1998-05-14 | 1998-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-11-12 | 2002-05-14 | 2002-11-13 | $7700.00 | Window Closed / Lapsed |