EP1091049B1 - Hydraulic excavator - Google Patents

EP1091049B1 - Hydraulic excavator - Google Patents

US5642616A - Fluid pressure control - Google Patents

A fluid pressure control system for hydraulic excavators includes a load sensing valve in communication with first and second pressure compensator valves via a load sensing line and responsive to a load sensing pressure developed in the load sensing line for regulating the discharge volume of a working fluid and a swing torque regulator lying midway of the load …

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EP0435702A1 - Demolition tool for a hydraulic excavator

A demolition tool for attachment to the boom structure (11) and hydraulic system of a hydraulic excavator having a pair of jaws (22,24) pivotally connected together as to be mountable on the frame of the tool by a movable pin (24) so that the jaws may be placed with other jaws having other forms of demolition characteristics. The jaws may be a shear for steel or other structural …

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Cheap Price China Mini Excavator 3.5 Ton 4 Ton For Sale

Cheap Price China Mini Excavator 3.5 Ton 4 Ton For Sale, Find Complete Details about Cheap Price China Mini Excavator 3.5 Ton 4 Ton For Sale,Cheap Price Mini Excavator,3.5 Ton Mini Excavator,4 Ton Mini Excavator from Excavators Supplier or Manufacturer-Shandong Nuote Machinery Co., Ltd.

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Issue Dates and Patent Numbers Since 1836

A brief description of these patent documents is provided on the following page. The patent documents listed in this report are as follows: 1) 1836-Series Patents (Utility Patents) - Mechanical, electrical, and chemical patents issued since July 13, 1836, which are frequently designated as "utility" patents, are included in this document set.

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China Road Roller manufacturer, Excavator, Backhoe Loader

Shandong Hengwang Group, an integrated enterprise of research, production and marketing, and a national high-tech enterprise. Headquartered in Jining, Shandong, the hometown of Confucius and Mencius, it has more than ten wholly-owned subsidiaries such as Hengwang Industrial and Mining, Luheng Machinery, Haineng Electronic Technology, Shanghai Hengwang Machinery, …

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US5363304A - Method for controlling a hydraulic excavator

In controlling a hydraulic excavator equipped with a front mechanism having multiple foldable and rotatable joints, the controlling method described enables complex joint actions to be controlled readily by manipulating electrical joy sticks. Translational and rotational control commands are input to a certain point on the longitudinal axis of a rear arm through the joy …

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Battery-driven hydraulic excavator - Google Patents

The battery-driven hydraulic excavator comprises an electric motor driven by power from the battery, a hydraulic pump driven by the electric motor, and a plurality of hydraulic actuators driven by operating oil from the hydraulic pump. There are provided supply lines for feeding the operating oil in an oil tank from the hydraulic pump into the hydraulic actuators.

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China Mini Excavator manufacturer, Wheel Excavator

Dec 24, 2021 · Shandong Dezhou Hengte Heavy Industry Co., Ltd was found in 1996, it's located in Yucheng City National High Tech Zone Hengte Industrial Park. Shandong Province. We are the first economic hydraulic excavator domestic manufacturer. Our main products covers 2-18 ton wheeled excavators and crawler excavators.

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Cheap Price China Mini Excavator 3.5 Ton 4 Ton For Sale

Cheap Price China Mini Excavator 3.5 Ton 4 Ton For Sale, Find Complete Details about Cheap Price China Mini Excavator 3.5 Ton 4 Ton For Sale,Cheap Price Mini Excavator,3.5 Ton Mini Excavator,4 Ton Mini Excavator from Excavators Supplier or Manufacturer-Shandong Nuote Machinery Co., Ltd.

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KR910014877U - Hydraulic system for - patents.google.com

Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Kefid Filing date Kefid Publication date Kefid Kefid Application filed by 임도빈 filed Critical 임도빈 Kefid Priority to KR2019900002499U priority Critical patent/KR920001919Y1/en

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Semi-automatic hydraulic excavator - Google Patents

A semi-automatic hydraulic excavator capable of automatically controlling arm and bucket angles when bringing the bucket back to the original excavation posture after completion of dumping excavated soil. For this purpose, arm and bucket angle detectors are provided therein and the automatic control is performed by negatively feeding back values detected by these detectors …

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Patents Assigned to Caterpillar Tractor Co. - Justia

Type: Grant. Filed: April 17, 1978. Date of Patent: December 18, 1979. Assignee: Caterpillar Tractor Co. Inventor: Alexander Goloff. Electronic directional control circuit. Patent number: 4178518. Abstract: Lift trucks (10) have many hand control levers which are manipulated to hoist a load, propel the lift truck (10) forward and rearward, and

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China Rhinoceros 800kg Mini Excavator Xn08 Mini Digger

Shandong Rhinoceros Engineering Machinery Co., LTD is a professional manufacturer of construction machinery, engineering machinery and trucks in china, the machines cover wheel excavator 5-15 ton, mini and big crawler excavator 6 -45 ton, backhoe loader 5-7 ton, wheel loader 0.5-5ton, concrete pump 21-55 meter, small trucks and mini dump. So i

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Developments in energy regeneration technologies for

Jul 01, 2021 · The results show that the reduction in fuel consumption can reach up to 40–60%, compared to the conventional excavators. In 2012, an 8-ton class hybrid hydraulic excavator SK08H was developed by Kobelco to harvest energy through its swing operation . The model has reduced 40% of the fuel consumption and deceased the noise level compared to

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US Patent for Hydraulic drive system for work machine

A hydraulic drive system includes a swing directional control valve 81 and a third boom directional control valve 82 that are connected to a third hydraulic pump 33. Furthermore, the hydraulic drive system includes: a second auxiliary directional control valve 84 that is connected to the third hydraulic pump 33, and is connectable with a second special hydraulic actuator 64 …

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EP0419673A4 - Hydraulic drive unit - patents.google.com

L'unité de commande hydraulique décrite comprend une pompe hydraulique (11, 11A), plusieurs actuateurs (4-6) mus par une huile sous pression fournie par la pompe hydraulique et comprenant un vérin de bras (5) et un vérin de flêche (4), plusieurs soupapes de modulation de débit (12, 14, 16) destinées à moduler les débits de l'huile sous pression alimentant les actuateurs et …

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LINK-BELT Construction Equipment For Sale in CLEVELAND

Browse a wide selection of new and used LINK-BELT Construction Equipment for sale near you at MachineryTrader.com. Top models for sale in CLEVELAND, GEORGIA include 210 X4, 350 X4, HTC-8660 II, and 145 X4 SPIN ACE

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Kobelco Schematic Hydraulic [MI4ULC]

Kobelco SK200 III SK200LC III Hydraulic Excavator Service Repair Manual will come to you in pdf format and is compressed for a lightning fast download! After downloading your Kobelco SK200 III SK200LC III Hydraulic Excavator Service Repair Manual you can view it on your computer or print one or all of the pages needed.

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Hydraulic thumb kit for backhoe - babbelbox24.de

D: Hydraulic Excavator Thumb Kits Add grappling functionality to your excavator or backhoe with a hydraulic thumb. 5-2. More Info 45168: Used Non-Hydraulic Thumb for 10-15 Ton Excavator: 80. Whole Machine Hydraulic Cylinder Seal Kit Made for Case 480F 480FLL Backhoe: Industrial & Scientific. Material 44W or A36.

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US3430790A - Excavator - Google Patents

US3430790A - Excavator - Google Patents Excavator Download PDF Info Arrangement for swinging an attachment holder for the equipment of a hydraulic excavator US3584751A (en) Liming: Mechanical earth working machine US3337974A (en) Liming: Bulldozer US4218171A (en

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