WO2005072085B1 - System and method for preventing piston-valve collision on a non-freewheeling internal combustion engine - Google Patents
System and method for preventing piston-valve collision on a non-freewheeling internal combustion engineInfo
- Publication number
- WO2005072085B1 WO2005072085B1 PCT/US2004/040179 US2004040179W WO2005072085B1 WO 2005072085 B1 WO2005072085 B1 WO 2005072085B1 US 2004040179 W US2004040179 W US 2004040179W WO 2005072085 B1 WO2005072085 B1 WO 2005072085B1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- valve
- pressure
- hydraulic
- engine
- piston
- Prior art date
Links
- 238000002485 combustion reaction Methods 0.000 title claims abstract 16
- 230000037250 Clearance Effects 0.000 claims abstract 8
- 230000035512 clearance Effects 0.000 claims abstract 8
- 239000012530 fluid Substances 0.000 claims 13
- 230000001808 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
Abstract
A valve actuation system and method for use in an internal combustion engine including at least one combustion cylinder having a piston and an engine valve. The valve actuation system includes a hydraulic pump, a high-pressure reservoir, and an electro-hydraulic valve actuator. The hydraulic pump is configured to produce a hydraulic output based on a valve-piston clearance profile of at least one cylinder of the combustion engine. The high-pressure reservoir is coupled with the hydraulic pump. The electro-hydraulic valve actuator is coupled with the high-pressure reservoir via a first control valve and configured to actuate at least one engine valve of the combustion engine according to an output of the hydraulic pump.
Claims
1. A valve actuation system for use in an internal combustion engine comprising at least one combustion cylinder having a piston and an engine valve, said valve actuation system comprising: a hydraulic pump configured to produce a hydraulic output based on a valve-piston clearance profile of at least one cylinder of said combustion engine; a high-pressure reservoir coupled with said hydraulic pump; and an electro-hydraulic valve actuator coupled with said high-pressure reservoir and configured to actuate at least one engine valve of said combustion engine according to an output of said hydraulic pump; wherein said electro-hydraulic valve actuator includes a control chamber coupled with said high-pressure reservoir and at least one plunger fluidly connected with said control chamber and mechanically connected to said at least one engine valve, and said valve actuation system further comprising at least one feedback loop from said control chamber to said high-pressure reservoir; and wherein said at least one feedback loop comprises a first feedback loop having a first check valve disposed therein, said first check valve configured to allow hydraulic fluid to flow from said control chamber to said high-pressure reservoir when the pressure in said control chamber exceeds the pressure in said high-pressure reservoir.
2. The valve actuation system recited in claim 1 , further comprising at least one feedback loop from said electro-hydraulic valve actuator to said high-pressure reservoir, such that when the pressure in said high-pressure reservoir is lower than the pressure in said electro-hydraulic valve actuator, hydraulic fluid travels from said electro-hydraulic valve actuator back to said high-pressure reservoir.
3. The valve actuation system recited in claim 1 , wherein said hydraulic pump includes a cam and a plunger, said cam having a shape selected to produce said hydraulic output based on said valve-piston clearance profile of said at least one engine cylinder, such that said plunger moves toward said cam when valve-piston clearance of said piston and said engine valve approaches zero.
4. The valve actuation system recited in claim 1 , wherein said at least one feedback loop further comprises a second feedback loop having a control valve disposed therein. i
5. The valve actuation system recited in claim 1 , wherein said at least one feedback loop further comprises a second feedback loop having a second control valve and a second check valve disposed therein, wherein when said second control valve is open, hydraulic fluid is permitted to flow to low-pressure region, and said second check valve allows hydraulic fluid to flow from low-pressure region to said high-pressure reservoir when the pressure in said high-pressure reservoir is below the pressure in said low-pressure region.
6. The valve actuation system recited in claim 1 , further comprising an accumulator coupled with said high-pressure reservoir.
7. The valve actuation system recited in claim 6, wherein said accumulator stores excessive hydraulic fluid and functions such that said check valve is permitted to open in response to high-pressure changes in fluid pressure.
8. A valve actuation method for use in an internal combustion engine comprising at least one combustion cylinder having a piston and an engine valve, said engine comprising an electro-hydraulic valve actuation system for opening and closing said engine valve, said valve actuation system comprising a hydraulic pump including a plunger mechanically coupled with a cam, said cam moving said plunger to create hydraulic pressure and being mechanically coupled to an engine crankshaft, said electro-hydraulic valve actuation system also including a second plunger fluidly connected with said hydraulic pump and mechanically connected with said engine valve for opening and closing said engine valve, said method comprising steps of: determining a piston-valve clearance profile of said piston and said engine valve for said at least one combustion cylinder; and selecting a shape of said cam of said hydraulic pump based on said piston-valve clearance profile, such that said plunger moves toward said cam when valve-piston clearance of said piston and said engine valve approaches zero; wherein said valve actuation system further comprises a control chamber coupled with a high-pressure reservoir via a control valve, said method further comprising a step of: coupling an accumulator with said high-pressure reservoir; and providing a feedback loop from said control chamber to said high-pressure reservoir via a check valve, such that when the pressure in said control chamber exceeds the pressure in said high-pressure reservoir, hydraulic fluid flows to said high-pressure reservoir from said control chamber to prevent piston-valve collision.
9. The method recited in claim 8, further comprising a step of configuring said accumulator such that said check valve is permitted to open in response to high-pressure changes in fluid pressure.
10. An electro-hydraulic valve actuation system for use in an internal combustion engine comprising at least one combustion cylinder having an engine piston and an engine valve, said valve actuation system comprising: a hydraulic pump means for producing a hydraulic output of hydraulic fluid based on a valve-piston clearance profile of at least one cylinder of said combustion engine; a valve actuation means for actuating at least one engine valve of said combustion engine according to an output of hydraulic fluid of said pump means:; a high pressure-reservoir means coupled with said hydraulic pump; a control chamber means coupled with said high-pressure reservoir; feedback means for redirecting hydraulic fluid from said valve actuation means when the engine piston moves close to the engine valve; and a check valve means disposed in said feedback means, for allowing hydraulic fluid flow from said control chamber to said high-pressure reservoir when pressure in said control chamber exceeds pressure in said high-pressure reservoir.
11. The valve actuation system recited in claim 10, further comprising accumulator means for storing excessive hydraulic fluid from the output from said pump means.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BRPI0417356A BRPI0417356B1 (en) | 2003-12-04 | 2004-12-02 | piston-valve collision avoidance system and method in an internal combustion engine |
| JP2006542700A JP4580937B2 (en) | 2003-12-04 | 2004-12-02 | System and method for preventing collision between piston and valve of non-freewheel internal combustion engine |
| EP04821255A EP1694945B1 (en) | 2003-12-04 | 2004-12-02 | System and method for preventing piston-valve collision on a non-freewheeling internal combustion engine |
| AU2004314703A AU2004314703B2 (en) | 2003-12-04 | 2004-12-02 | System and method for preventing piston-valve collision on a non-freewheeling internal combustion engine |
| AT04821255T ATE531905T1 (en) | 2003-12-04 | 2004-12-02 | SYSTEM AND METHOD FOR PREVENTING A PISTON-VALVE COLLISION ON AN INTERNAL COMBUSTION ENGINE WITHOUT FREEWHEEL |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/726,688 US7007644B2 (en) | 2003-12-04 | 2003-12-04 | System and method for preventing piston-valve collision on a non-freewheeling internal combustion engine |
| US10/726,688 | 2003-12-04 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| WO2005072085A2 WO2005072085A2 (en) | 2005-08-11 |
| WO2005072085A3 WO2005072085A3 (en) | 2005-11-03 |
| WO2005072085B1 true WO2005072085B1 (en) | 2006-03-02 |
Family
ID=34633365
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/US2004/040179 WO2005072085A2 (en) | 2003-12-04 | 2004-12-02 | System and method for preventing piston-valve collision on a non-freewheeling internal combustion engine |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US7007644B2 (en) |
| EP (1) | EP1694945B1 (en) |
| JP (1) | JP4580937B2 (en) |
| CN (1) | CN100436762C (en) |
| AT (1) | ATE531905T1 (en) |
| AU (1) | AU2004314703B2 (en) |
| BR (1) | BRPI0417356B1 (en) |
| WO (1) | WO2005072085A2 (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI124107B (en) * | 2006-06-30 | 2014-03-14 | Wärtsilä Finland Oy | Piston Engine Gas Exchange Valve Control Arrangement and Method for Controlling a Piston Engine Gas Exchange Valve |
| JP5575749B2 (en) * | 2008-04-22 | 2014-08-20 | ボーグワーナー インコーポレーテッド | Actuator control method |
| US20110214632A1 (en) * | 2010-03-08 | 2011-09-08 | Manousos Pattakos | Hydro-mechanical variable valve actuation |
| FI122253B (en) * | 2010-04-30 | 2011-10-31 | Waertsilae Finland Oy | Improved throttle valve control arrangement in a piston engine |
| US20130304352A1 (en) * | 2012-05-11 | 2013-11-14 | Chrysler Group Llc | On-board diagnostic method and system for detecting malfunction conditions in multiair engine hydraulic valve train |
| CN103147857B (en) * | 2013-02-28 | 2015-05-27 | 长城汽车股份有限公司 | Engine with horizontally-opposed air cylinder |
| CN106460593A (en) * | 2014-05-12 | 2017-02-22 | 博格华纳公司 | Crankshaft driven valve actuation |
| US9279350B2 (en) | 2014-05-27 | 2016-03-08 | Caterpillar Inc. | Intake valve closure control for dual-fuel engines |
| WO2016010732A1 (en) * | 2014-07-16 | 2016-01-21 | Borgwarner Inc. | Crankshaft driven valve actuation using a connecting rod |
| EP3406866A1 (en) * | 2017-05-22 | 2018-11-28 | EMPA Eidgenössische Materialprüfungs- und Forschungsanstalt | Hydraulic drive for accelerating and braking components to be dynamically moved |
| US10976757B2 (en) | 2019-04-18 | 2021-04-13 | Flowserve Management Company | Control systems for valve actuators, valve actuators and related systems and methods |
| SE546024C2 (en) * | 2022-07-11 | 2024-04-16 | Freevalve Ab | An apparatus comprising a plurality of tools, wherein each tool comprises at least one hydraulic chamber |
Family Cites Families (38)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US56435A (en) * | 1866-07-17 | Improvement in pumps for deep wells | ||
| US488A (en) * | 1837-11-25 | Apparatus fob bobing the hubs of wheels | ||
| US157624A (en) * | 1874-12-08 | Improvement in processes of making a mixed paint and paint-oil | ||
| US134328A (en) * | 1872-12-24 | Improvement in governors | ||
| US148421A (en) * | 1874-03-10 | Improvement in safety-pins for thill-couplings | ||
| US1377297A (en) * | 1921-05-10 | werner | ||
| US5898A (en) * | 1848-10-31 | Sawmill | ||
| US1473077A (en) * | 1921-04-16 | 1923-11-06 | George L Bull | Valve-operating mechanism |
| US2459960A (en) * | 1938-02-11 | 1949-01-25 | Perisse Richard | Internal-combustion engine |
| US2703076A (en) * | 1953-01-23 | 1955-03-01 | Chaude Bernard Jean Albert | Valve hydraulic control device for internal-combustion engines |
| US3439662A (en) * | 1967-09-18 | 1969-04-22 | Stanley A Jones | Variably timed brake for an automotive vehicle engine |
| US4510900A (en) * | 1982-12-09 | 1985-04-16 | The Jacobs Manufacturing Company | Hydraulic pulse engine retarder |
| US4572114A (en) * | 1984-06-01 | 1986-02-25 | The Jacobs Manufacturing Company | Process and apparatus for compression release engine retarding producing two compression release events per cylinder per engine cycle |
| US4716863A (en) * | 1985-11-15 | 1988-01-05 | Pruzan Daniel A | Internal combustion engine valve actuation system |
| JPS63176610A (en) * | 1987-01-19 | 1988-07-20 | Honda Motor Co Ltd | Control device for suction and exhaust valves |
| DE3939934A1 (en) * | 1989-12-02 | 1991-06-06 | Man Nutzfahrzeuge Ag | VALVE CONTROL FOR GAS EXCHANGE VALVES OF INTERNAL COMBUSTION ENGINES |
| US5377654A (en) * | 1992-11-12 | 1995-01-03 | Ford Motor Company | System using time resolved air/fuel sensor to equalize cylinder to cylinder air/fuel ratios with variable valve control |
| US5339777A (en) * | 1993-08-16 | 1994-08-23 | Caterpillar Inc. | Electrohydraulic device for actuating a control element |
| DE4424802C1 (en) * | 1994-07-14 | 1995-07-13 | Daimler Benz Ag | EGR system for four=stroke engine |
| US5537976A (en) * | 1995-08-08 | 1996-07-23 | Diesel Engine Retarders, Inc. | Four-cycle internal combustion engines with two-cycle compression release braking |
| EP1031706A1 (en) * | 1995-08-08 | 2000-08-30 | Diesel Engine Retarders, Inc. | Method of operating an internal combustion engine |
| US6125828A (en) * | 1995-08-08 | 2000-10-03 | Diesel Engine Retarders, Inc. | Internal combustion engine with combined cam and electro-hydraulic engine valve control |
| US5996550A (en) * | 1997-07-14 | 1999-12-07 | Diesel Engine Retarders, Inc. | Applied lost motion for optimization of fixed timed engine brake system |
| WO1999023378A1 (en) * | 1997-11-04 | 1999-05-14 | Diesel Engine Retarders, Inc. | Lost motion valve actuation system |
| US6647954B2 (en) | 1997-11-17 | 2003-11-18 | Diesel Engine Retarders, Inc. | Method and system of improving engine braking by variable valve actuation |
| DE19826047A1 (en) * | 1998-06-12 | 1999-12-16 | Bosch Gmbh Robert | Device for controlling a gas exchange valve for internal combustion engines |
| WO2000011336A1 (en) * | 1998-08-19 | 2000-03-02 | Diesel Engine Retarders, Inc. | Hydraulically-actuated fail-safe stroke-limiting piston |
| US6092495A (en) * | 1998-09-03 | 2000-07-25 | Caterpillar Inc. | Method of controlling electronically controlled valves to prevent interference between the valves and a piston |
| GB9906504D0 (en) * | 1999-03-23 | 1999-05-12 | Csa Performance Ltd | Valve actuation means |
| CN1272590A (en) * | 1999-05-03 | 2000-11-08 | 周仲南 | Hydraulic transmission air valve mechanism |
| WO2001020150A1 (en) * | 1999-09-17 | 2001-03-22 | Diesel Engine Retarders, Inc. | Captive volume accumulator for a lost motion system |
| NL1013811C2 (en) | 1999-12-09 | 2000-11-28 | Prometheus Engineering B V | Hydraulic valve actuation mechanism. |
| DE10048263A1 (en) * | 2000-01-14 | 2001-07-19 | Continental Teves Ag & Co Ohg | Method for operating an internal combustion engine |
| JP2003519743A (en) | 2000-01-14 | 2003-06-24 | コンチネンタル・テベス・アーゲー・ウント・コンパニー・オーハーゲー | Method for operating an internal combustion engine |
| ITTO20010269A1 (en) | 2001-03-23 | 2002-09-23 | Fiat Ricerche | INTERNAL COMBUSTION ENGINE, WITH HYDRAULIC VARIABLE VALVE OPERATION SYSTEM, AND MEANS OF COMPENSATION OF VOLUME VARIATIONS |
| ITTO20010660A1 (en) | 2001-07-06 | 2003-01-06 | Fiat Ricerche | MULTI-CYLINDER DIESEL ENGINE WITH VARIABLE VALVE OPERATION. |
| ITTO20020234A1 (en) * | 2002-03-15 | 2003-09-15 | Fiat Ricerche | INTERNAL COMBUSTION MULTI-CYLINDER ENGINE WITH ELECTRONICALLY CONTROLLED HYDRAULIC DEVICE FOR VARIABLE OPERATION OF VALVES AND D |
| US6854433B2 (en) * | 2002-04-05 | 2005-02-15 | Jacobs Vehicle Systems, Inc. | Integrated primary and auxiliary valve actuation system |
-
2003
- 2003-12-04 US US10/726,688 patent/US7007644B2/en not_active Expired - Fee Related
-
2004
- 2004-12-02 BR BRPI0417356A patent/BRPI0417356B1/en not_active IP Right Cessation
- 2004-12-02 AU AU2004314703A patent/AU2004314703B2/en not_active Ceased
- 2004-12-02 JP JP2006542700A patent/JP4580937B2/en not_active Expired - Fee Related
- 2004-12-02 EP EP04821255A patent/EP1694945B1/en not_active Not-in-force
- 2004-12-02 CN CNB2004800358251A patent/CN100436762C/en not_active Expired - Fee Related
- 2004-12-02 AT AT04821255T patent/ATE531905T1/en active
- 2004-12-02 WO PCT/US2004/040179 patent/WO2005072085A2/en active Application Filing
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