in order to develop more efficient engines, it is essential to optimize the lubrication circuit of the power train systems. in this paper, during an engine design and development process, a network analysis of the engine lubrication system is described in detail. two elements have been added to the lubrication circuit in the modified engine. these elements are hydraulic lifters and an anti-drai...

The paper deals with the flow of oil through an experimental hydraulic circuit a convergent divergent nozzle circular cross-section. Under different physical conditions, i.e. changes in pressure, and temperature, formation development cavitation is monitored. As it highly dynamic transparent nozzle, monitored using high-speed camera frequency dissolution bubble movement cloud then determined. a...

The publication retells a story about the author’s visit to place where Russian oil prospectors stayed in Assam, helping explore fields and pump India. ONGC campus is described, lived many years ago. Meetings with local people, who kept memories specialists’ stay India, are covered, too. article also describes inspection of equipment, used by Soviet prospectors.

It is well known that, at present, late stage fields are operated mainly by sucker-rod pumps. The pumps usually in rather complicated technological and hydrodynamic conditions, strongly influencing its efficiency. In the article possible influence of downhole pump (DSRP) depth on delivery factor that one indicators operating efficiency entire pumping unit investigated basis actual field informa...

Taking the lubrication system of rotary tillage engine as research object, this paper makes a three-dimensional simulation study on oil flow characteristics in lubricating passage. The supply pump shall be greater than circulating required by to ensure cultivator. Lubrication is an important part reliability and durability key component achieve its performance pump. geometric model field tiller...

conclusions intraperitoneal migration of a subfascially placed baclofen pump is a rare, yet serious complication, which has been reported only once in the literature. we advise neurosurgeons to have a low level of threshold in confirming the location of a baclofen pump with imaging and surgical exploration if necessary in order to avoid detrimental outcomes such as bowel perforation. case prese...

The use of pumps linked in parallel or series in large scale pipe systems is usually inevitable, to meet the required head and discharge. Transient flow occurs following a pump failure in a pump group as a result of variations in the flow rate. This research is an investigation about waterhammer caused by one or more pump-switch off in a pump group when they are connected in parallel. The opera...

The oil production process is the of extracting from reservoir using wells that have been made. In there are three stages, namely primary recovery, secondary recovery and tertiary recovery. At stage two methods, natural energy (natural flow) artificial lift methods (artificial lift). There basic principles lift, gas pumps. principle to inject into bottom well thereby reducing density pressure g...

Due to the enormous use of oil worldwide, accidental spills occur relatively often, threatening sea ecosystem. A remediation strategy, usually, includes materials macroporous structure, flexibility, and low cost. Furthermore, they need have oleophilic hydrophobic characteristics. All these demands fulfill siloxane matrix foams. The addition a natural zeolite, clinoptilolite, as filler, can impr...

Many vitreoretinal procedures are performed in offices and hospitals where cost control is important. We describe three useful devices and techniques that facilitate these procedures at minimal expense and often greater convenience. These include an accurate method for localising the pars plana without the use of callipers, an inexpensive, reliable, pressure regulated air pump for fluid-air exc...