EP0396154A2 - Valve disabling mechanism for an internal combustion engine - Google Patents
Valve disabling mechanism for an internal combustion engine Download PDFInfo
- Publication number
- EP0396154A2 EP0396154A2 EP90110325A EP90110325A EP0396154A2 EP 0396154 A2 EP0396154 A2 EP 0396154A2 EP 90110325 A EP90110325 A EP 90110325A EP 90110325 A EP90110325 A EP 90110325A EP 0396154 A2 EP0396154 A2 EP 0396154A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- tubular
- drive pin
- shoulder
- valve
- tubular drive
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
- F01L13/06—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for braking
- F01L13/065—Compression release engine retarders of the "Jacobs Manufacturing" type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/12—Transmitting gear between valve drive and valve
- F01L1/18—Rocking arms or levers
- F01L1/181—Centre pivot rocking arms
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D13/00—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing
- F02D13/02—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation
- F02D13/0273—Multiple actuations of a valve within an engine cycle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D13/00—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing
- F02D13/02—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation
- F02D13/04—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation using engine as brake
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/02—Valve drive
- F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
- F01L1/08—Shape of cams
Definitions
- This invention relates to a valve disabling mechanism employed in internal combustion engines which may be switched from the normal powering mode to a retarding mode of the compression-release type.
- a further alternative way to disable the exhaust valve is to provide an eccentric bushing in the rocker arm pivot so as to raise the pivot or fulcrum and thereby introduce a lost motion in the valve train.
- Such a device is shown, for example in U.S. Patent 3 367 312.
- other lost motion mechanisms may also be used; see for example U.S. Patent 3 786 792.
- EP-A 0 037 269 which concerns engine cylinder cutout systems in which for the cutout cylinders the exhaust valves are kept open while the intake valves are kept closed.
- the disengageability of the intake valve train is accomplished by a two-part pushtube, the two parts being telescopically slidable with respect to each other and having locking means to prevent telescopic sliding in the normal powering mode of the engine.
- the locking means are controlled by means of a hydraulically actuated piston accommodated between the outer portion of the two-part pushtube and a housing.
- a valve disabling mechanism for an internal combustion engine having a valve train mechanism, characterized by tubular driven means affixed to the valve train mechanism and having first and second shoulder means, tubular drive pin means coaxially disposed within the tubular driven means and communicating at one end with the valve train mechanism, the tubular drive pin means having third and fourth shoulder means and a plurality of transverse radial ports, actuating pin means coaxially disposed within the tubular drive pin means and adapted to reciprocate between first and second positions within the tubular drive pin means, the actuating pin means having fifth and sixth shoulder means, first biasing means interposed between the actuating pin means and the tubular drive pin means and adapted to bias the drive pin means towards said first position, second biasing means disposed between the second and third shoulder means, and locking means loosely disposed within the transverse radial ports and being moveable between a first position in engagement with the first shoulder for conjoint movement of the tubular driven means and the tubular drive pin means and a second position in engagement
- a valve disabling mechanism in accordance with the invention shown in Fig. 1A and 1B comprises a tubular adjusting screw 310.
- Fig. 1A shows the valve disabling mechanism during the powering mode of engine operation wherein it performs the function of the adjusting screw of the rocker arm.
- Fig. 1B shows the same mechanism during the retarding mode of engine operation wherein it disables the rocker arm 50 and, therefore, the exhaust valves.
- Point 308 represents the point about which rocker arm 50 pivots when actuated by a pushtube 52.
- the tubular adjusting screw 310 which replaces the solid adjusting screw is locked in its adjusted position by a locknut 312.
- the tubular adjusting screw 310 is provided with three concentric bores.
- a large bore 314 extends a short distance from the pushtube end of the adjusting screw 310.
- An intermediate bore 316 extends from the large bore 314 substantially to the top of the adjusting screw 310.
- a small bore 318 extends through the top of the adjusting screw 310.
- a sloping shoulder 320 is formed between the large bore 314 and the intermediate bore 316 while a horizontal shoulder 322 is formed between the intermediate bore 316 and the small bore 318.
- a drive pin 324 is positioned within the adjusting screw 310.
- the maximum diameter of the drive pin 324 is slightly less than the diameter of the intermediate bore 316 to permit reciprocation of the drive pin 324 relative to the adjusting screw 310.
- One end of the drive pin 324 is adapted to mate with, and be driven by, the pushtube 52.
- a snap ring 326 limits the downward (as shown in Figs. 1A and 1B) movement of the drive pin 324 relative to the adjusting screw 310.
- the upper portion of the drive pin 324 has an outside diameter 328 which is slightly smaller than the small bore 318 of the adjusting screw 310 so as to permit relative reciprocation of the drive pin 324 and adjusting screw 310.
- a shoulder 330 is defined by the diameter 328 of the upper portion of the drive pin 324 and the maximum diameter of the drive pin.
- a compression spring 332 is located within the adjusting screw 310 between shoulders 322 and 330 so as to bias the drive pin 324 downwardly (as shown in Figs. 1A and 1B) relative to the adjusting screw 310.
- a plurality of ports 334 are disposed around the circumference of the drive pin 324 in the region of its largest diameter. The ports 334 are directed angularly downwardly (as shown in Figs. 1A and 1B) from the outside of the drive pin 324 toward the axis of the drive pin.
- a stepped cavity 336 is formed within the drive pin 324.
- the largest diameter 338 of the stepped cavity 336 communicates at its upper region with the plurality of ports 334, and with an intermediate diameter 340 through a sloping shoulder 342.
- the intermediate diameter 340 terminates at a shoulder 344 while a smaller diameter section 346 extends from the shoulder 344 through the top of the drive pin 324.
- a stepped actuator pin 348 is mounted for reciprocating motion with respect to the drive pin 324 and includes a large diameter section 350, an intermediate diameter section 352 and a small diameter section 354.
- a sloping shoulder 356 joins the larger diameter section 350 and the intermediate diameter section 352 while a horizontal shoulder 358 is located between the intermediate and small diameter sections of the actuator pin 348.
- a ball 362 is located in each of the ports 334.
- the balls 362 are larger in diameter than the wall thickness of the drive pin 324 in the region of the ports 334 so that when the actuator pin 348 is in its uppermost position (as shown in Fig. 1B) the balls 362 extend outside the drive pin 324 and engage the shoulder 320 of the adjusting screw 310.
- the sloping shoulder 320 cams the balls 362 inwardly so that the balls 362 rest, at least partially, on the sloping shoulder 356 of the actuator pin 348. In this position (Fig. 1B), the balls 362 clear the shoulder 320 and the adjusting screw 310 is free to reciprocate with respect to the drive pin 324 so that no movement is imparted to pushtube 52.
- Point 364 (Fig. 1B) represents the maximum upward excursion of the drive pin 324 as a result of the upward movement of the exhaust valve pushtube 52.
- the distance 366 (Fig. 1B) represents a clearance (which should be a minimum of about 0.100 ⁇ ) between point 364 and the rest position of the master piston 66 ⁇ (or 224 shown in Fig. 2A).
- the master piston 66 ⁇ (or 224) is biased toward its rest position by the leaf spring 120 ⁇ (or 236 shown in Figs. 2A and 2B).
- the hydraulic circuit will be pressurized by the low pressure pump and the master piston 66 ⁇ will be driven downwardly (as viewed in Figs. 1A and 1B) until it contacts the end of the drive pin.324 against the bias of leaf spring 120 ⁇ and compression spring 360.
- the motion of the pushtube 52 will be transmitted through the drive pin 324 to the master piston 66 ⁇ but the rocker arm 50 will remain at rest since the drive pin 324 will be disengaged from the adjusting screw 310.
- Figs. 2A and 2B illustrate a mechanism which is very similar to the mechanism shown in Figs. 1A and 1B but which is designed to delay but not entirely disable the motion of the intake valve.
- the rocker arm 232 is an intake valve rocker arm
- the pushtube 228 is an intake valve pushtube
- the master piston 224 is located in alignment with the intake valve pushtube 228 within a master cylinder 226 located in the retarder housing.
- Figs. 2A and 2B are intended principally to provide the intake valve delay, it will be appreciated that this mechanism may be used whenever a delay in the intake or exhaust valve motion is required. Similarly, the mechanism of Figs. 1A and 1B may be used whenever the intake or exhaust valves are required to be disabled.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Valve Device For Special Equipments (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
Abstract
Description
- This invention relates to a valve disabling mechanism employed in internal combustion engines which may be switched from the normal powering mode to a retarding mode of the compression-release type.
- In internal combustion engines which may be switched from a powering mode to a retarding mode of the compression release-type, the normal motion of at least one exhaust valve has to be substituted by a modified valve motion. An improved engine retarding method of the named type with an advantageous valve motion in the retarding mode has been disclosed in the European Patent Application 86 107 117.3 which is the parent application to this divisional application.
- While known engine retarding methods of the compression release type (eg. US-PS 32 20 392) merely provide an additional exhaust valve opening event at the end of the stroke corresponding to the compression stroke in the powering mode, said additional opening event not interfering with the normal exhaust valve motion, in an improved engine retarding method according to the parent application to this application (EP-A 0 211 170) the normal valve motion has to be modified in the retarding mode.
- Thus it is necessary to disable the exhaust valves from the opening at the time they would normally open during the positive power mode of engine operation. Two mechanisms which accomplish this result are disclosed in U.S. Patent 4 572 114 which is owned by the assignee of the present invention. One of these mechanisms involves a modification of the exhaust valve crosshead to temporarily prevent its actuation by a rocker arm while enabling actuation by the slave piston. The other mechanism involves a modification of the rocker arm wherein the portion of the rocker arm which contacts the crosshead is temporarily disconnected from the portion of the rocker arm actuated by a pushtube.
- A further alternative way to disable the exhaust valve is to provide an eccentric bushing in the rocker arm pivot so as to raise the pivot or fulcrum and thereby introduce a lost motion in the valve train. Such a device is shown, for example in U.S. Patent 3 367 312. As noted above, other lost motion mechanisms may also be used; see for example U.S. Patent 3 786 792.
- A further device for disabling the normal valve motion is known from EP-A 0 037 269 which concerns engine cylinder cutout systems in which for the cutout cylinders the exhaust valves are kept open while the intake valves are kept closed. The disengageability of the intake valve train is accomplished by a two-part pushtube, the two parts being telescopically slidable with respect to each other and having locking means to prevent telescopic sliding in the normal powering mode of the engine. The locking means are controlled by means of a hydraulically actuated piston accommodated between the outer portion of the two-part pushtube and a housing. A very high accuracy is necessary in the production of this assembly, since three separate chambers for control-fluid are required for operation. The high-precision production, however, result in high production cost.
- It is the object of this invention to provide a reliable and simple mechanism for disabling the normal valve motion which may be incorporated into the valve pushtube, the rocker arm adjusting screw, rocker arm or rocker arm shaft.
- According to the present invention this problem is solved by a valve disabling mechanism for an internal combustion engine having a valve train mechanism, characterized by tubular driven means affixed to the valve train mechanism and having first and second shoulder means, tubular drive pin means coaxially disposed within the tubular driven means and communicating at one end with the valve train mechanism, the tubular drive pin means having third and fourth shoulder means and a plurality of transverse radial ports, actuating pin means coaxially disposed within the tubular drive pin means and adapted to reciprocate between first and second positions within the tubular drive pin means, the actuating pin means having fifth and sixth shoulder means, first biasing means interposed between the actuating pin means and the tubular drive pin means and adapted to bias the drive pin means towards said first position, second biasing means disposed between the second and third shoulder means, and locking means loosely disposed within the transverse radial ports and being moveable between a first position in engagement with the first shoulder for conjoint movement of the tubular driven means and the tubular drive pin means and a second position in engagement with the fifth shoulder for enabling reciprocating motion of the tubular driven means relative to the tubular drive pin means.
- Further objects and advantages of the invention will become apparent from the following detailed description of the invention and the accompanying drawings in which:
- Fig. 1A is a cross-sectional view of a mechanism for disabling the exhaust valve for an internal combustion engine with separate crossheads and slave pistons and showing the mechanism in the positive powering mode.
- Fig. 1B is a cross-sectional view of the mechanism of Fig. 1A in the retarding mode of operation.
- Fig. 2A is a cross-sectional view of a mechanism for delaying the opening of the intake valve and showing the mechanism in the positive powering mode.
- Fig. 2B is a cross-sectional view of the mechanism of Fig. 2A in the retarding mode of operation.
- A valve disabling mechanism in accordance with the invention shown in Fig. 1A and 1B comprises a
tubular adjusting screw 310. Fig. 1A shows the valve disabling mechanism during the powering mode of engine operation wherein it performs the function of the adjusting screw of the rocker arm. Fig. 1B shows the same mechanism during the retarding mode of engine operation wherein it disables therocker arm 50 and, therefore, the exhaust valves. -
Point 308 represents the point about whichrocker arm 50 pivots when actuated by apushtube 52. The tubular adjustingscrew 310 which replaces the solid adjusting screw is locked in its adjusted position by alocknut 312. The tubular adjustingscrew 310 is provided with three concentric bores. Alarge bore 314 extends a short distance from the pushtube end of the adjustingscrew 310. Anintermediate bore 316 extends from thelarge bore 314 substantially to the top of the adjustingscrew 310. Asmall bore 318 extends through the top of the adjustingscrew 310. A slopingshoulder 320 is formed between thelarge bore 314 and theintermediate bore 316 while ahorizontal shoulder 322 is formed between theintermediate bore 316 and thesmall bore 318. - A
drive pin 324 is positioned within the adjustingscrew 310. The maximum diameter of thedrive pin 324 is slightly less than the diameter of theintermediate bore 316 to permit reciprocation of thedrive pin 324 relative to the adjustingscrew 310. One end of thedrive pin 324 is adapted to mate with, and be driven by, thepushtube 52. Asnap ring 326 limits the downward (as shown in Figs. 1A and 1B) movement of thedrive pin 324 relative to the adjustingscrew 310. The upper portion of thedrive pin 324 has anoutside diameter 328 which is slightly smaller than thesmall bore 318 of the adjustingscrew 310 so as to permit relative reciprocation of thedrive pin 324 and adjustingscrew 310. Ashoulder 330 is defined by thediameter 328 of the upper portion of thedrive pin 324 and the maximum diameter of the drive pin. Acompression spring 332 is located within the adjustingscrew 310 betweenshoulders drive pin 324 downwardly (as shown in Figs. 1A and 1B) relative to the adjustingscrew 310. A plurality ofports 334 are disposed around the circumference of thedrive pin 324 in the region of its largest diameter. Theports 334 are directed angularly downwardly (as shown in Figs. 1A and 1B) from the outside of thedrive pin 324 toward the axis of the drive pin. A stepped cavity 336 is formed within thedrive pin 324. Thelargest diameter 338 of the stepped cavity 336 communicates at its upper region with the plurality ofports 334, and with anintermediate diameter 340 through a slopingshoulder 342. Theintermediate diameter 340 terminates at ashoulder 344 while asmaller diameter section 346 extends from theshoulder 344 through the top of thedrive pin 324. - A
stepped actuator pin 348 is mounted for reciprocating motion with respect to thedrive pin 324 and includes alarge diameter section 350, anintermediate diameter section 352 and asmall diameter section 354. A slopingshoulder 356 joins thelarger diameter section 350 and theintermediate diameter section 352 while ahorizontal shoulder 358 is located between the intermediate and small diameter sections of theactuator pin 348. When theactuator pin 348 is in its uppermost position (as shown in Fig. 1A) thehorizontal shoulder 358 in the actuator pin abuts theshoulder 344 of thedrive pin 324 and thesmall diameter section 354 of theactuator pin 348 extends beyond the upper end of thedrive pin 324. Theactuator pin 348 is biased toward its uppermost position by acompression spring 360 located within the cavity 336. Aball 362 is located in each of theports 334. Theballs 362 are larger in diameter than the wall thickness of thedrive pin 324 in the region of theports 334 so that when theactuator pin 348 is in its uppermost position (as shown in Fig. 1B) theballs 362 extend outside thedrive pin 324 and engage theshoulder 320 of the adjustingscrew 310. However, whenever theactuator pin 348 is depressed as shown in Fig. 1B, thesloping shoulder 320 cams theballs 362 inwardly so that theballs 362 rest, at least partially, on thesloping shoulder 356 of theactuator pin 348. In this position (Fig. 1B), theballs 362 clear theshoulder 320 and the adjustingscrew 310 is free to reciprocate with respect to thedrive pin 324 so that no movement is imparted to pushtube 52. - Point 364 (Fig. 1B) represents the maximum upward excursion of the
drive pin 324 as a result of the upward movement of theexhaust valve pushtube 52. The distance 366 (Fig. 1B) represents a clearance (which should be a minimum of about 0.100˝) betweenpoint 364 and the rest position of themaster piston 66˝ (or 224 shown in Fig. 2A). - The
master piston 66˝ (or 224) is biased toward its rest position by theleaf spring 120˝ (or 236 shown in Figs. 2A and 2B). Whenever the engine retarder is turned on, the hydraulic circuit will be pressurized by the low pressure pump and themaster piston 66˝ will be driven downwardly (as viewed in Figs. 1A and 1B) until it contacts the end of the drive pin.324 against the bias ofleaf spring 120˝ andcompression spring 360. Under these conditions, the motion of thepushtube 52 will be transmitted through thedrive pin 324 to themaster piston 66˝ but therocker arm 50 will remain at rest since thedrive pin 324 will be disengaged from the adjustingscrew 310. However, the bias ofcompression spring 332 will maintain therocker arm 50 in contact with the exhaust valve crosshead (not shown). It will be seen, therefore, that the exhaust valves are automatically disabled by the mechanism of Fig. 1A and 1B whenever the engine retarder is switched on. - Figs. 2A and 2B illustrate a mechanism which is very similar to the mechanism shown in Figs. 1A and 1B but which is designed to delay but not entirely disable the motion of the intake valve. For purposes of clarity and brevity, parts which are common to both mechanisms carry the same designators. It will be understood, however, that the
rocker arm 232 is an intake valve rocker arm, thepushtube 228 is an intake valve pushtube and themaster piston 224 is located in alignment with the intake valve pushtube 228 within amaster cylinder 226 located in the retarder housing. - The only significant difference in the mechanisms shown in Figs. 2A and 2B over the mechanisms shown in Figs. 1A and 1B is that an extra step is provided between the
intermediate bore 316 and thesmall bore 318 so as to form ashoulder 364 between theintermediate bore 316 and anintervening bore 366. The diameter of the intervening bore 366 is smaller than themaximum diameter 328 of thedrive pin 324. Thedistance 368 betweenshoulders distance 368 is equal to or greater than the travel of thepushtube 228, the mechanism of Figs. 2A and 2B will function exactly like the mechanism of Figs. 1A and 1B. - Although the mechanism of Figs. 2A and 2B is intended principally to provide the intake valve delay, it will be appreciated that this mechanism may be used whenever a delay in the intake or exhaust valve motion is required. Similarly, the mechanism of Figs. 1A and 1B may be used whenever the intake or exhaust valves are required to be disabled.
- The terms and expressions which have been employed are used as terms of description and not of limitation and there is no intention in the use of such terms and expressions of excluding any equivalent of the features shown and described or portions thereof, but it is recognized that various modifications are possible within the scope of the invention claimed.
Claims (4)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP90110325A EP0396154B1 (en) | 1985-08-09 | 1986-05-26 | Valve disabling mechanism for an internal combustion engine |
AT90110325T ATE95279T1 (en) | 1985-08-09 | 1986-05-26 | DEVICE FOR SWITCHING OFF AN ENGINE VALVE. |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/763,962 US4592319A (en) | 1985-08-09 | 1985-08-09 | Engine retarding method and apparatus |
US763962 | 1985-08-09 | ||
EP90110325A EP0396154B1 (en) | 1985-08-09 | 1986-05-26 | Valve disabling mechanism for an internal combustion engine |
Related Parent Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP86107117.3 Division | 1986-05-26 | ||
EP88111487A Division EP0302288B1 (en) | 1985-08-09 | 1986-05-26 | Disengageable valve drive means |
EP88111487.0 Division | 1988-07-16 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0396154A2 true EP0396154A2 (en) | 1990-11-07 |
EP0396154A3 EP0396154A3 (en) | 1991-04-03 |
EP0396154B1 EP0396154B1 (en) | 1993-09-29 |
Family
ID=66687164
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP90110325A Expired - Lifetime EP0396154B1 (en) | 1985-08-09 | 1986-05-26 | Valve disabling mechanism for an internal combustion engine |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0396154B1 (en) |
AT (1) | ATE95279T1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103346657A (en) * | 2013-07-26 | 2013-10-09 | 侯惜之 | Magnetic iron-core coil integrated power generator |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4141333A (en) * | 1975-01-13 | 1979-02-27 | Gilbert Raymond D | Valve train systems of internal combustion engines |
EP0037269A1 (en) * | 1980-03-28 | 1981-10-07 | Engine Control Industries Ltd. | Engine cylinder cutout system |
US4411229A (en) * | 1981-02-09 | 1983-10-25 | Mile-Age Research Corporation | Cylinder deactivation device |
-
1986
- 1986-05-26 EP EP90110325A patent/EP0396154B1/en not_active Expired - Lifetime
- 1986-05-26 AT AT90110325T patent/ATE95279T1/en active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4141333A (en) * | 1975-01-13 | 1979-02-27 | Gilbert Raymond D | Valve train systems of internal combustion engines |
EP0037269A1 (en) * | 1980-03-28 | 1981-10-07 | Engine Control Industries Ltd. | Engine cylinder cutout system |
US4411229A (en) * | 1981-02-09 | 1983-10-25 | Mile-Age Research Corporation | Cylinder deactivation device |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103346657A (en) * | 2013-07-26 | 2013-10-09 | 侯惜之 | Magnetic iron-core coil integrated power generator |
Also Published As
Publication number | Publication date |
---|---|
ATE95279T1 (en) | 1993-10-15 |
EP0396154A3 (en) | 1991-04-03 |
EP0396154B1 (en) | 1993-09-29 |
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