DK154312C - INSTRUMENT FOR AUTOMATIC ADJUSTMENT OF THE ENGINE CIRCUIT OF A EQUIPMENT - Google Patents

INSTRUMENT FOR AUTOMATIC ADJUSTMENT OF THE ENGINE CIRCUIT OF A EQUIPMENT

Info

Publication number
DK154312C
DK154312C DK239682A DK239682A DK154312C DK 154312 C DK154312 C DK 154312C DK 239682 A DK239682 A DK 239682A DK 239682 A DK239682 A DK 239682A DK 154312 C DK154312 C DK 154312C
Authority
DK
Denmark
Prior art keywords
control element
speed
hydraulic circuit
control
lever
Prior art date
Application number
DK239682A
Other languages
Danish (da)
Other versions
DK239682A (en
DK154312B (en
Inventor
Kurt-Arno Kruse
Manfred Grahl
Werner Kock
Heinz Mehldau
Original Assignee
Weyhausen Kg Maschf H
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Weyhausen Kg Maschf H filed Critical Weyhausen Kg Maschf H
Publication of DK239682A publication Critical patent/DK239682A/en
Publication of DK154312B publication Critical patent/DK154312B/en
Application granted granted Critical
Publication of DK154312C publication Critical patent/DK154312C/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/22—Hydraulic or pneumatic drives
    • E02F9/2278—Hydraulic circuits
    • E02F9/2292—Systems with two or more pumps
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/22—Hydraulic or pneumatic drives
    • E02F9/2246—Control of prime movers, e.g. depending on the hydraulic load of work tools
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D17/00—Controlling engines by cutting out individual cylinders; Rendering engines inoperative or idling
    • F02D17/04—Controlling engines by cutting out individual cylinders; Rendering engines inoperative or idling rendering engines inoperative or idling, e.g. caused by abnormal conditions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D29/00—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto
    • F02D29/04—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto peculiar to engines driving pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition

Abstract

1. A device for automatically controlling the engine speed of an earthmoving machine having an internal combustion engine, more particularly a hydraulic excavator having a diesel engine, between a working speed and a second speed below said working speed, comprising a hydraulic circuit (6) fed by at least one hydraulic pump (3, 4) to actuate a working tool, a pick-up (9) which is disposed in the hydraulic circuit (6) and which is (pressure-)controlled by the pressure in the hydraulic circuit (6), and a control element (21), by means of which there is actuated, on the one hand, a control lever (26) disposed in the area of the driver's seat and adjustable manually there and, on the other hand, a speed adjusting lever (33) acting on the internal combustion engine fuel regulator, the control element (21) being adapted to be so actuated, via a control line (38), by means of a switch (17, 18) connected to the pick-up (9) via a delay means (12), the actuation being provided by controlled application of a separate energy source (19), that the connection between the energy source (19) and the control element (21) is blocked when a predetermined critical pressure is exceeded in the hydraulic circuit (6) so that the control element (21) returns the speed adjusting lever (33) to the working speed set at the control lever (26), and the connection between the energy source (19) and the control element (21) can be released with a controlled delay by the delay means (12) when the predetermined critical pressure in the hydraulic circuit (6) is not attained, so that the control element (31) adjusts the speed adjusting lever (33) without adjusting the control lever (26) to the idling position.
DK239682A 1981-08-28 1982-05-27 INSTRUMENT FOR AUTOMATIC ADJUSTMENT OF THE ENGINE CIRCUIT OF A EQUIPMENT DK154312C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3134068A DE3134068C2 (en) 1981-08-28 1981-08-28 Device for the automatic regulation of the engine speed of an earth moving device
DE3134068 1981-08-28

Publications (3)

Publication Number Publication Date
DK239682A DK239682A (en) 1983-03-01
DK154312B DK154312B (en) 1988-10-31
DK154312C true DK154312C (en) 1989-04-03

Family

ID=6140333

Family Applications (1)

Application Number Title Priority Date Filing Date
DK239682A DK154312C (en) 1981-08-28 1982-05-27 INSTRUMENT FOR AUTOMATIC ADJUSTMENT OF THE ENGINE CIRCUIT OF A EQUIPMENT

Country Status (6)

Country Link
EP (1) EP0073288B1 (en)
JP (1) JPS5844132A (en)
AT (1) ATE20269T1 (en)
DE (1) DE3134068C2 (en)
DK (1) DK154312C (en)
NO (1) NO155852C (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61142338A (en) * 1984-12-13 1986-06-30 Komatsu Ltd Method of controlling engine provided with automatic decelerator
JPS60256528A (en) * 1984-05-31 1985-12-18 Komatsu Ltd Engine control device in hydraulically driven machine
GB2171757B (en) * 1985-02-28 1989-06-14 Komatsu Mfg Co Ltd Method of controlling an output of an internal combustion engine and a variabledisplacement hydraulic pump driven by the engine
JP2567222B2 (en) * 1986-04-01 1996-12-25 株式会社小松製作所 Engine control method and apparatus for wheeled construction machine
JPS62275507A (en) * 1986-05-21 1987-11-30 Sumitomo Heavy Ind Ltd Manufacturing assembly for base metal for aluminum foil
US4838755A (en) * 1987-02-19 1989-06-13 Deere & Company Automatic engine control for an excavator
JP2831377B2 (en) * 1988-07-04 1998-12-02 日立建機株式会社 Engine speed control device for construction machinery
DE3911401C1 (en) * 1989-04-07 1990-03-01 Joseph Voegele Ag, 6800 Mannheim, De
DE3911706C2 (en) * 1989-04-10 1999-09-30 Linde Ag Method for operating a drive unit
US4989567A (en) * 1989-07-19 1991-02-05 Kabushiki Kaisha Kobe Seiko Sho Engine speed controlling system in construction machine
CA2062591C (en) * 1991-11-13 1999-05-11 Isao Murota Method for controlling engine for driving hydraulic pump to operate hydraulic actuator for construction equipment
EP1666711B1 (en) 2003-09-02 2016-07-20 Komatsu Ltd. Method and device for controlling power output of engine for working machine

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2862587A (en) * 1956-10-26 1958-12-02 James L Baughman Brake pedal actuated auxiliary decelerator for internal combustion engines
SE394903B (en) * 1974-01-23 1977-07-18 Akermans Verkstad Ab DEVICE FOR SPEED CONTROL OF AN ENGINE, SPECIAL DIESEL ENGINE IN A WORKING MACHINE
FR2496172A1 (en) * 1980-12-11 1982-06-18 Richier Sa Nle Indle Automatic idling device for IC engine - has sensors associated with control to detect rest position and delay circuit producing signal when preset condition is detected

Also Published As

Publication number Publication date
DE3134068A1 (en) 1983-03-17
ATE20269T1 (en) 1986-06-15
DK239682A (en) 1983-03-01
NO821062L (en) 1983-03-01
EP0073288B1 (en) 1986-06-04
DK154312B (en) 1988-10-31
EP0073288A1 (en) 1983-03-09
NO155852C (en) 1987-06-10
JPS5844132A (en) 1983-03-15
DE3134068C2 (en) 1984-05-10
NO155852B (en) 1987-03-02

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Legal Events

Date Code Title Description
PBP Patent lapsed