ourpump.com blog

Indeed the American dream is to drive past the gas pumps and keep on riding. Electric bicycles and electric scooters are becoming the ride of the times.

In fact electric moped motorcycles cost pennies on the dollar to charge and they are a great means of ecologically friendly transportation. Some of them can also carry two riders for a quick trip to the beach, Ballpark or check out the bike trail with out the strain. There’s something about being on an electric scooter that can take the stress right out of your life. The driving distances can be up to 85 miles on a single charge. No gas needed.

Imagine the smile’s on people’s face’s when you ride your electric bicycle past them in the park or at the beach, with the wind blowing through your hair enjoying your ride.

It’s important to realize that with electric bicycles you can pedal or you don’t have to, because you can let the battery do the work for you. You can also use it for your commute to your job so you don’t have to take the bus or the train. On the other hand if you want to ride to work but don’t want to get all sweaty you can let the electric bicycle do the work for you on the way there, then on the way home you can pedal and get your work out for the day with out going to the gym.

In fact if you’re not used to riding because of your health an electric bicycle is a great way to get your body used to exercising because you don’t have to pedal if you get tired or sore. You have the option to pedal or use the battery power feature allowing you to enjoy a bike ride with your partner or grandchildren to the park or the bike trail without the pollution or the thought of having to buy gas every time you drive you car out of the driveway.

The way gas prices have skyrocketed there have been stories of people buying an electric bicycle or electric scooter, selling one of there vehicles and save anywhere from three to five hundred dollars a month for a couple of years. As a result then found out they like saving so much money they have been able to take vacations and went another two years without a second vehicle.

People are becoming more environmentally friendly and going green. We can do our part in lowering greenhouse gas emissions with an electric bicycle or electric scooter which runs on batteries and doesn’t burn fossil fuel.

Gas pump , also known as air compressors, is the main gas supply, it is the original motive (usually motor) of the mechanical energy into the gas pressure to the device, the air pressure generating device. Pump gas pump and in general different, it’s working medium gases, liquids or other media not.
Large side air-driven piston, a small area of high pressure gas output end to be. Output Pressure: 2690bar (269MPa), in which oxygen maximum 5000psi (34.5MPa). Series of two gas booster pump booster pump, low pressure can be increased to a high pressure gas, driving pressure =<7bar, gas input pressure range of 0.5-10bar, maximum to 90Mpa. Pump for the series and N series to the exactly the same way, the entire pump is used in all aluminum and stainless steel. Pump gas drive in the series required some type of gas lubrication, so seals and other internal parts to be lubricated, the series of pump-driven piston diameter of 160mm.. Series single-stage gas booster pump booster pump, gas pressure to achieve the desired input type requires a certain degree of pressure preload, increased pressure due to the pre-maximum pressure varies. Maximum boost to 80Mpa. The pump for the same way as B series, the difference is that the series B Series pumps manufactured on the basis of two-headed pump, the entire pump used in all aluminum and stainless steel.

The pump drive piston diameter of 160mm, drive pressure =<8bar. Both ends of the pump head are cooled with exhaust, factory two inlet and two exit lines can be connected to user requirements. H Series gas booster pump single air control valve to non-equilibrium distribution of the pump the gas back and forth movement, all aluminum and stainless steel. All seals are imported quality products, designed to drive the maximum pressure are 10bar, proposed in order to ensure the life of the pump-driven pressure <8bar. The pump drive piston diameter of 160mm, the role of a single pump, all pumps are single acting with exhaust cooling.

The role of the fuel pump is stored in the fuel tank of fuel delivered to fuel injector inside the pipe. Early in the engine fuel system, mostly mechanical fuel pump, electric fuel pump now has to be replaced.The fuel pump is a submersible pump with a permanent magnet electric motor.Fuel enters the pump inlet tube after passing through a sock style filter and is pushed through the pump by the motor to the outlet.

It consists of a motor, a vane roller pump, a fuel damper, and a relief valve to prevent system damage from over pressure. The fuel pump shares its mounting cage with the fuel gauge sending unit.The pump contains a single check valve on the output side which restricts fuel movement in either direction, maintaining fuelsystem pressure, typically, at 40 to 45 psi when the pump is not operating, therefore fuel pressure must be released prior to servicing the fuel system.Electric fuel pump works with the electric pump works the same, the use of motor-driven pump unit corresponding to continuoussupply of fuel to the fuel system.You know, the fuel system must maintain a certain pressure, the only way to ensure that the fuel injectors spray atomized better, easier to burn.But when the engine is off,the fuel system pressure loss,if there is no residual pressure inside the pipe at high temperatures is very prone to vapor lock.This re-start the engine, because the air mixed with the fuel system, it is difficult to ensure adequate fuel, the engine will be difficult to start.To this end, set the fuel pump check valve.So that when fuel pump stops running, one-way valve is closed, in order to maintain the residual pressure within the fuel line, to facilitate the re-start the engine.

Electric fuel pump casing at both ends crimping rivet tight, so that the various components of the assembly of a non-removable, so the electric fuel pump is generally not repair. Additional features fuel pump check valve from the valve and the completion of a safety valve to prevent fuel line is blocked, the pressure rise over pipeline rupture or damage caused by the phenomenon of the fuel pump. Calibrated pressure relief valve 2.6 bar or so, one-way valve was set up to prevent the fuel pump stops working seal oil, the fuel system to maintain a certain residual pressure, so when you next start the engine easily. Some put the vehicle after a night on the bad start, just one-way valve failure may be related.Electric fuel pump installed in the fuel tank inside the bottom shell, the tank’s bottom shell on the local composition of the oil pool subsidence. Work pool pump oil from the oil, the oil export pipeline through the fuel tank through the fuel supply pipe connected with the outside cover. The upper part of the pump and the fuel tank cap fuel tank cap gasket, the pump pressure in the tank tightly. In the oil pump on the oil back to oil standard meter arrow, the arrow can be identified pipeline link. Pump circuit connections: Pump circuit with 5-way connector, including 2-way power for the pump, the other 3-way for the surface display. Power supply circuit in the red for the “+” pole, pole should be connected to the EFI system, the interface wiring harness, the power control relay control by the ECU.Fuel pump provides fuel flow 80L / hour, the excess oil recycling, into the fuel tank, the fuel cycle in the washing and cooling injectors in the body.

A fuel pump usually is an essential component on an internal combustion engine device, commonly seen on cars. Some engines like old motorcycles don’t require a fuel pump. They use gravity to send fuel to the engine from the fuel tank. Fuel pumps deliver the fuel from the fuel tank to the engine using low pressure mechanical pump which is mounted in the fuel tank. Some engines have two fuel pumps, a low pressure/high volume supply pump and a low volume/high pressure supply pump.
When starting the engine, you may notice that it is hard to start. You may also experience loss of power while in a full throttle situation. This may be a sign that the fuel pump is in a bad condition. It is better to check if the fuel pickups, filters, electrical connectors, and pump relays are in a good working condition before replacing the fuel pump.

Electric fuel pumps can be found in two locations. One is inside the gas tank and the other is underneath the car. This fuel pump generates high pressured fuel which is supplied into your electronic fuel injection system.
Some tools are needed in changing a fuel pump. These include the following: a replacement fuel pump, large fuel catch container, new fuel line, fire extinguisher and eye protectors (for safety purposes), socket set, open end wrench set, flat head screwdriver, and Phillips head screwdriver.

Changing a fuel pump is not a hard thing to do. It can be easily done by following these steps carefully:

1. Release the pressure first in the fuel system. The fuel injection systems functions in a very high pressure. Explosive results may happen if this pressure is not released before removing the fuel lines so it is better to put the fire extinguisher somewhere near.
2. Start the car engine then pull the fuel pump fuse in the fuse box. If your car doesn’t have a fuel pump fuse, pull the relay that operates the fuel pump instead. If done correctly, the engine will die instantly, releasing all the pressured fuel in the system.
3. Locate the position of the fuel pump. Fuel pump located underneath the car is held by a number of bolts. You will need the open end wrench in this task.
4. Remove the fuel lines from the fuel pump using the open end wrenches. Gas will surely leaks while removing the fuel lines so use the fuel catch container while removing.
5. Disconnect the wire connections of the fuel pump. There should be two wires, a ground and a positive wire. It is better to mark which is which so reconnecting wouldn’t be a problem. The wires may be held by plugs, small bolts or screws.
6. Swap the previous fuel pump with the new one. Connect the wiring and the fuel lines back. Then return the fuel pump to its position, tighten it and make sure it is not loose.
7. Return the removed fuel pump fuse or the fuel pump relay from earlier. Then start the engine and prepare for a test drive.

In today’s upstream and midstream oil and gas environment, screw pumps are playing a larger role in what has traditionally been a centrifugal and reciprocating pump market. This is due in large part to technological innovation by screw pump manufacturers and the industry’s need to pump heavier crude oils. Both twin screw and three screw pumps are successfully operating in multiphase, heavy crude oil and crude oil/water emulsion applications.

The oil and gas industry is producing, transporting and refining more unconventional, heavier grades of crude oil from places such as Canada, California, Mexico and South America. Crude oil from these areas is highly viscous, often requiring diluent, steam or other stimulation just to flow the oil from the reservoirs to the pipelines. These nontraditional grades of crude oil are ideally suited for pumping with a screw pump.

Depending on the actual application, either twin screw or three screw pumps are used in crude oil pipeline services. Three screw pumps are typically found boosting pressure from laterals to the main pipeline, while twin screw pumps are predominantly utilized in the main pipeline boosting stations. The primary advantages of screw pumps include the ability to handle a wide range of viscosities; centrifugals can vapor lock while pumping diluent blended crude oils and become extremely inefficient when pumping crude oils heavier than 250 cSt. Screw pumps have extremely low pulsation, eliminating the need for pulsation dampeners or complicated pipeline support systems required by reciprocating pumps.

Three Screw Pumps

Three screw pump designs are generally capable of flow rates exceeding 1100 gpm and differential pressures up to 1700 psi. The pump consists of three rotors, one power and two driven; one externally lubricated bearing capable of handling thrust loads induced by high inlet pressure; one balanced mechanical seal; a liner; a casing and a bearing/seal housing. The power rotor (coupled to driver) performs the pumping work, while the idlers act to seal off the pumping chambers. The torque is transmitted to the driven rotors by a rolling contact. The pumped fluid creates a barrier between the rotating elements, preventing metal-to-metal contact of the rotating elements. The liquid film also supports the rotors in the liner, eliminating contact between the rotors and the liners.

As crude oil enters a three screw pump, it fills the suction pumping chamber of the screw set; as the screws turn, crude oil is conveyed from suction to discharge. This positive displacement action simply moves a volume from suction to discharge, as if it were an infinite stroke piston without the need for complicated internal porting and valving.

In most cases, three screw pumps are used in applications where sand and particulate have been removed from the crude oil (i.e. pipeline grade crude oil).  However, since some particulate may have survived the crude oil settling process, most pumps are available with alternative liner coatings to prevent premature wear, and the rotors are normally hardened.

Three screw pumps usually boost pipeline lateral pressures to the main pipeline that flows to a refinery or terminal. The main pipelines usually require higher flow rates and pressures, which is best accommodated by large twin screw pumps. Today, twin screw pumps have flow capabilities exceeding 11,500-gpm and differential pressures to 1,400-psi.

Twin Screw Pumps

Twin screw pumps are hydraulically balanced, pulsation free and deliver a given volume from suction to discharge, meeting whatever back pressure the system puts on the pump. The pump has two rotors, one drive and one driven, and relies on the pumped fluid to fill the clearances between the rotors and rotors and liner. The pumped fluid seals the individual pumping chambers of the screw profiles, allowing the pump to maintain prime. In a rigid rotor design, the liquid acts as a sealing mechanism only and does not act as a bearing support for the rotors.

The rotors are supported on both ends by bearings, and torque is transmitted from drive to driven rotor via timing gears. By eliminating rolling contact between rotors, as is the case with three screw pumps, twin screw pumps can handle everything from water to heavy crude oils.

In most designs, the timing gears and bearings are external to the pumped fluid. The timing gears are oil lubricated, while the bearings are lubricated by grease or oil. Depending on differential pressure requirements, the bearing and timing gears may require a forced lube oil system to properly dissipate heat and improve overall component reliability.

Since there are at least four bearings in a twin screw pump, there are four shaft penetrations and four mechanical seals. Seals are available in both single and double seal configurations, depending on the actual service. Single seals are typically used for crude services, while double mechanical seals with a barrier fluid system are also available.

Twin screw pumps are increasingly popular in the midstream market, where their ability to handle high viscosities allows operators to pump colder or use less diluent. This is especially evident in ongoing pipeline projects bringing heavy Canadian crude oil to the American Market.

Multiphase Applications

The evolution of twin screw pumps has led to their implementation in multiphase applications. Twin screw style pumps dominate the upstream market in multiphase applications due to their operational flexibility and economical installation. Multiphase pumps boost the untreated flow stream produced from oil wells to downstream process or gathering facilities. This means the pumps handle 100 percent liquid to 100 percent gas (with recirculation) and every combination in between. These pumps are packaged for land-based, offshore and subsea applications.

Multiphase pumps are typically found in the following services:

• Lower well head pressure-As reservoirs mature, their natural pressure declines and production decreases. Multiphase pumps are able to boost the flow line pressure, allowing increased production flow rates, while bucking downstream line pressure.  By drawing down well head pressure, additional production will occur as the inflow to the production tubing increases.
• Reduced facilities-Rather than separating the gas from the liquids, treating the phases and then compressing and pumping the individual phases, multiphase pumps handle untreated well flow with one piece of equipment. By utilizing one piece of equipment, economic justification is significantly higher for remote single well production and well cluster development with centralized process facilities.
• Flow assurance-Multiphase pumps deliver a constant flow at a given speed regardless of system pressure. By changing the pump speed, operators can optimize the flow rate and inlet pressure, thus boosting total reservoir recovery, improving end of life production and reducing paraffin or hydrate buildup.

Current multiphase pump designs deliver up to 330,000-bpd (total flow) at differential pressures up to 1,200-psi. Given the current trend toward deepwater development, the oil and gas industry has recently identified the need for multiphase pumps capable of flows up to 600,000-bpd (total flow) and differential pressures exceeding 2,400-psi.

The operational flexibility, higher efficiency and robustness of screw pumps make them ideal candidates for an increasing array of applications within the oil and gas industry. Ongoing development of screw pump technology will only broaden their use in multiphase, crude oil, emulsion and produced water services.