Topical

Selecting a solenoid valve that meets all desired performance requirements across various environmental operating conditions may represent a significant challenge for a designer. Because the features of a solenoid valve are interconnected, modifying one aspect of the design may impact another performance element. In some cases, performance trade-offs are obvious. For example, reducing the [...]

Several factors must be considered to ensure that a solenoid valve operates properly within a system or pressure vessel. Neglecting to consider these factors may lead to reduced valve or system performance, damage to other components within the system, or a total system failure. The following key characteristics should be defined when selecting a [...]

Whether designing a launch vehicle, spacecraft, or satellite, industry mainstays and New Space start-ups choose The Lee Company to provide the miniature precision fluid control components necessary to guarantee mission success. Serving the differing needs of New Space and traditional aerospace customers successfully requires an innovative approach. In this article, Mathew French, Technical Marketing Manager, [...]

Transmissions play an integral part in maximizing a vehicle’s fuel economy and overall efficiency. Modern transmissions present new challenges to automakers. Corporate average fuel economy (CAFE) standards require vehicle manufacturers to meet certain average fuel efficiencies for the entire vehicle fleet they produce over a year. Design engineers are tasked with improving fuel economy by [...]

What is a Solenoid Valve? A solenoid valve is an electromechanical device used to control the flow of a liquid or gas. It is comprised of two features: a solenoid and a valve. The solenoid is an electric coil with free-moving ferromagnetic material in the center of the coil, often referred to as a [...]

Engineers tasked with managing fluid flow talk about both holes and calibrated orifices, but they are two distinct entities. A hole can be any opening, but a calibrated orifice is specially designed to precisely control fluid flow. Consequently, its diameter, length, and geometry are critical to its intended operation. With the right design, an [...]

Propellant supply plays a significant role in a satellite’s operational life. Optimizing satellite design for longevity is a critical step before any mission. A high-performing solenoid valve can help conserve charged pressure and extend the life of a satellite by creating an active barrier between the tank and the rest of the feed system. Satellite [...]

The DL-series Plug: Sealing in Reliability In hydraulics, innovative product design is motivated by the need for a new function to reduce pain points or improve a current solution. The Lee Company’s automotive customers have told us that sealing cross-drilled holes in aluminum manifolds is a function they all need. These customers also shared that [...]

ION Propulsion is the preferred option for a wide range of space missions. Ion propulsion systems offer a more efficient use of fuel and electrical power as compared to other propulsion technologies. Therefore, ion thrusters are the preferred option for a wide range of space missions such as satellite station-keeping, orbit insertion, and deep space [...]

THE CHALLENGE: Validating the integrity of chemical injection lines The reliable operation of drilling, completion, and production equipment under extreme environmental conditions presents a major challenge as oil and gas wells continue to operate deeper within the earth. The single-use isolation device in chemical injection systems is a prime example of such a [...]

A leading electric vehicle manufacturer faced a significant obstacle when working on a design for their new powertrain series. They found that cup plugs used to seal cross-drilled holes in their electric drive module (EDM) were dripping the required sealant into their assembly, causing catastrophic system failure. The manufacturer needed a better fluid control solution [...]

A leading automotive manufacturer struggled with the release of a new engine technology. They required an immediate solution to protect the launch date and their reputation. The Challenge More stringent regulations have led many original equipment manufacturers (OEMs) to implement gasoline direct injection (GDI) engines, which provide improved fuel economy, reduce emissions, and [...]

Download Disc Pump Brochure The Lee Company's new range of piezoelectric micropumps offered by DenisDePloeg is enabling innovation across sectors from medical and life sciences to environmental and industrial. The micropumps deliver unrivaled pressure and flow, silent operation, rapid response time, precision, and ultra-smooth flow – all in a tiny package, promoting wearability, portability, [...]

Download An Engineer's Guide to Selecting a Flow Restrictor A flow restrictor is any device that restricts or limits the flow of a fluid—generally a liquid or a gas. Such devices may also be referred to as flow limiters. Calibrated orifices are one example of flow restrictors. They are used in systems we encounter [...]

Download An Engineer's Guide to Selecting a Check Valve A check valve, also known as a non-return or one-way valve, is a mechanical device that allows a gas or liquid to flow freely in one direction while preventing reverse flow in the opposite direction. The direction in which the fluid or gas can flow [...]

Download An Engineer's Guide to Selecting a Pressure Relief Valve A Pressure Relief Valve is a mechanical device which allows a gas or liquid to escape from a section of a fluidic system when the pressure exceeds a predetermined limit. Pressure Relief Valves can serve several different functions within a system. The performance requirements [...]

Molecular diagnostics is revolutionizing the way we approach healthcare: The revolution of personalized medicine. Molecular diagnostics can detect health risks and diseases early to improve treatment, enhance disease management, and diminish subsequent health problems. The evolution of molecular diagnostics is escalating the demand for ever-increasing device automation to create faster sample throughput without compromising [...]

Ailments such as chronic obstructive pulmonary disease (COPD) and asthma require frequent monitoring and interventional therapies, such as monitoring exhaled nitric oxide in asthma patients or delivering portable oxygen therapy to patients with COPD. Even healthy athletes can benefit from cardio pulmonary diagnostic therapies that provide metabolic feedback of their performance, allowing them to develop [...]

Download Lee Dispense Pumps Brochure Fixed Volume Dispense Pumps Lee Fixed Volume Dispense Pumps are solenoid-driven, chemically inert, positive displacement pumps, which provide accurate and repeatable dispense volumes in a small lightweight package. Models are available for a wide range of dispense volumes. Providing accurate and repeatable dispense volumes of 10 to 25 [...]

We know that engine development is challenging and maintenance can be expensive. DenisDePloeg helps minimize risks and control costs by providing proven, customized solutions. Our expertise reduces the burden on our customers' engineering resources. In this brochure, you will learn where Lee precision fluid control components serve critical functions in the following aircraft engine [...]