Application of Oil Level Detection Device in Mining Heavy Truck Lubrication System

2021 ◽  
Keyword(s):  
Lubrication System ◽  
Heavy Truck

DESAIN ELASTOHYDRODINAMIS LUBRICATION SYSTEM DENGAN PENGATUR TEKANAN PADA CAMSHAFT MOTOR BENSIN 4 LANGKAH

2017 ◽  
Vol 8 (2) ◽  
pp. 773
Author(s):  
Nana Supriyana ◽  
Mastur Mastur
Keyword(s):  
Lubrication System

Camshaft didesain dengan beberapa pertimbangan seperti durasi bukaan katup, tinggi angkat katup, jarak titik puncak antara cam lobe intake  dan cam lobe exhaust, dengan cara kerja berputar, tertekan dan bergesekan akan menimbulkan hal yang tidak bisa dihindarkan yaitu terjadinya proses keausan permukaan yang bergesekan yang berdampak perubahan pada waktu pemasukan campuran bahan bakar dengan udara dan pengeluaran sisa pembakaran yang pada akhirnya berpengaruh terhadap kemampuan kerja motor secara keseluruhan. Penelitian ini dilakukan untuk mengamati fenomena keausan yang terjadi pada komponen camshaft dengan cara membuat desain sistem pelumasan (elastohydrodinamic lubrication system) untuk mencapai kondisi elastohidrodinamis selalu terjadi walaupun diawal bergeraknya komponen camshaft pada motor bensin sehingga keausan permukaan camshaft dapat diminimalisir dan kemampuan kerja motor tetap terjaga. Metode penelitian menggunakan media motor bensin 4 langkah dengan mekanisme katup jenis single over head camshaft (SOHC), kecepatan putar camshaft 2000 Rpm, temperatur kerja 78o C serta menggunakan minyak pelumas SAE 10W-40. Hasil penelitian didapatkan bahwa sistem pelumasan modifikasi dengan penambahan dua buah katup pengatur minyak pelumas pada komponen camshaft menunjukan kekasaran intake cam lobe sebesar 0,316µm dan kekasaran exhaust cam lobe sebesar 0,343µm mempunyai nilai kekasaran lebih rendah dibandingkan dengan sistem pelumasan standar menghasilkan nilai kekasaran sebesar 0,639µm untuk intake cam lobe dan 0,433µm untuk exhaust cam lobe. Hal ini membuktikan bahwa dengan modifikasi desain dengan penambahan sebuah katup pengatur minyak pelumas dapat meminimalisir atau mengurangi resiko keausan camshaft.

Choice and Exchange of Lubricating Oil for Injection Molding Machine

2019 ◽  
Vol 12 (4) ◽  
pp. 378-382
Author(s):  
Shan Syedhidayat ◽  
Quan Wang ◽  
Al-Hadad M.A.A. Mohsen ◽  
Jinrong Wang
Keyword(s):  
Injection Molding ◽  
Dimensional Accuracy ◽  
Low Noise ◽  
Working Environment ◽  
Lubricating Oil ◽  
Lubrication System ◽  
Molding Machine ◽  
Oil And Grease ◽  
Injection Molding Machine ◽  
The Stability

Background: One of the most common manufacturing equipment for polymer product is injection molding machine. In order to ensure the precise, stable and continuous operation of the injection molding machine, the maintenance of the lubrication system must be done well. The stability, reliability, rationality and low noise performance of the lubrication system of injection molding machine directly affect the quality of injection products, dimensional accuracy, molding cycle, working environment and maintenance. Objective: The purpose of this study is to introduce the methods of choice, maintenance of lubricating oil for injection molding machine from many literatures and patents in the recent years, such as lubricating oil device, lubricating composite and structure. Methods: An example of the 260M5 automatic injection molding machine is introduced for the inspection and maintenance of the lubrication system including lubricating oil and lubricating grease. Results: To ensure the lubrication of the injection molding machine, it needs to strictly observe the lubrication time and modulus of the injection molding machine. It needs to strictly control the temperature rise of the lubricating oil and select the correct lubricating oil and grease to ensure the lubrication quality. Conclusion: In the operation of the injection molding machine, it is necessary to check that the lubricating oil is sufficient and the lubricating points are working properly. It ensures sufficient lubrication of the injection molding machine and strictly observes the lubrication time and modulus of the injection molding machine. The stored lubricating oil should be sealed well to prevent air pollution.

Traffic and speed characteristics on two-lane highways: field study

2003 ◽  
Vol 30 (6) ◽  
pp. 1042-1054 ◽  
Author(s):  
Yasser Hassan
Keyword(s):  
Light Condition ◽  
Operating Speed ◽  
Ambient Light ◽  
Horizontal Curve ◽  
Vehicle Class ◽  
Rural Highways ◽  
Horizontal Alignment ◽  
Heavy Truck ◽  
Traffic Composition ◽  
Rural Highway

Many models have been developed to evaluate the operating speeds on two-lane rural highways. However, provided information usually lacks details essential to assess their applicability at locations other than where they were developed. This paper presents a procedure to interpret raw data collected on three horizontal curve sites of different two-lane rural highway classes in Ontario. The speed observations were categorized into three vehicle classes (passenger car, light truck, and multi-axle heavy truck) and four light condition categories (day, night, and two transition periods). The minimum headway and percentile value to define the operating speed were examined, and a revision of the current practice deemed not warranted. The findings also indicated that operating speeds do not depend on the time or vehicle class. Finally, the horizontal alignment affects the operating speed, but the speeds of the two travel directions on a horizontal curve may differ even with little contribution of the vertical alignment.Key words: highway geometric design, operating speed, traffic composition, traffic counters, ambient light, acceleration, deceleration.

Dynamic responses of highway bridge subjected to heavy truck impact

2021 ◽  
Vol 232 ◽  
pp. 111828
Author(s):  
Kai Heng ◽  
Ruiwen Li ◽  
Zhuoran Li ◽  
Hao Wu
Keyword(s):  
Dynamic Responses ◽  
Highway Bridge ◽  
Heavy Truck

scholarly journals Enzymatic identification of the load-bearing boundary lubricant in the joint.

Rheumatology ◽  
1998 ◽  
Vol 37 (2) ◽  
pp. 137-142 ◽  
Author(s):  
B A Hills ◽  
M K Monds
Keyword(s):  
Water Soluble ◽  
Surprising Result ◽  
Lubrication System ◽  
Load Bearing ◽  
Bovine Articular Cartilage ◽  
Boundary Lubricant ◽  
Surface Active ◽  
Per Se ◽  
Dose Dependent ◽  
Wear Tests

Abstract Bovine articular cartilage and synovial fluid (SF) were co-incubated with one of three enzymes selected to destroy each of the three major contenders for the active ingredient imparting such remarkable load-bearing lubrication to the normal joint. Destroying hyaluronic acid (HA), alias hyaluronan, with hyaluronidase, both frictional and wear tests displayed no significant change in accordance with most previous studies of SF alone. Destroying surface-active phospholipid (SAPL) with phospholipase A2, there was a highly significant dose-dependent compromise of lubrication as recorded on both tests. Trypsin produced a somewhat surprising result in that lubrication of the cartilage actually improved. This result can be interpreted as indicating that lubricin is not the lubricant per se, but, as a water-soluble, macromolecular, proteinaceous carrier for phospholipid, its destruction caused more SAPL to be deposited as the true load-bearing lubricant. These results are discussed in the context that SAPL, lubricin and HA each have specific roles in a comprehensive lubrication system.

Pumpless Lubrication System: A New Concept to Reduce Emission from 2-stroke Engined Vehicles

2001 ◽  
Author(s):  
V. Tandon ◽  
K.P. Kavthekar ◽  
S.D. Rairikar ◽  
M.K. Chaudhari
Keyword(s):  
Lubrication System ◽  
System A
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