Entity

Time filter

Source Type

La Grange, GA, United States

Chen R.,Kaydon Filtration Corporation
ASME International Mechanical Engineering Congress and Exposition, Proceedings | Year: 2010

This paper focuses on developing the Network Locating Principle for fixturing tooling design in flexible circuit board assembly. From a viewpoint of Thermodynamics, a flexible circuit board populated with electronic components on the first side is a closed thermodynamic system. It experiences deformation energy change, assembly load work, and heat transfer during an isothermal assembly process on the second side, such as solder paste deposit printing and electronic component placement processes. Based on the First and Second Laws of Thermodynamics and Energy Equation of Thermoelastic Theory, a fixturing analysis is developed to investigate the deformation energy change, and furthermore the theoretical fixturing solution is derived to minimize the assembly load work during the isothermal assembly processes. To this end, the Network Locating Principle is proposed to guide fixturing tooling design for the isothermal assembly processes on the second side. Effectiveness of the Network Locating Principle is verified in numerical and experimental studies of flip chip placement processes on a thin flexible circuit Copyright © 2010 by ASME. Source


Chen R.,Kaydon Filtration Corporation | Ma A.,Kaydon Filtration Corporation | Mills T.,Kaydon Filtration Corporation | Martin B.,Kaydon Filtration Corporation
AFS 2012 Fall Conference: Solid-Fluid-Separation - Innovation in Research and Applications | Year: 2012

Moisture is considered a chemical contamination when suspended or mixed with lubricating oils. It presents a combination of chemical and physical problems for the lubricant and machinery, respectively. To separate the water contamination from lubricating oil effectively and efficiently by coalescence filtration approach, a new coalescer element concept per non-woven filter media is introduced in this paper. Experimental results of preliminary water removal tests from ISO68 hydraulic mineral oil prove feasibility of the above coalescer element concept and furthermore demonstrate an amazing water-oil separation capability. In the case of ISO68 AW hydraulic mineral oil, total water concentration in oil can be reduced from 0.5 % v/v or larger at coalescer element upstream to 150ppm v/v or less at separator element downstream within one single pass through a set of a new coalescer element and a regular separator element. Source


Chen R.,Kaydon Filtration Corporation | Jose J.,Kaydon Filtration Corporation | Majestic P.,Kaydon Filtration Corporation | Mills T.,Kaydon Filtration Corporation | Martin B.,Kaydon Filtration Corporation
Filtration | Year: 2012

An innovative, US patent pending coalescence filtration medium, called SFM, has been developed to effec-tively and efficiently clean heavy water contaminations from fuels, including petrodiesel fuels and biodiesel blends. The paper focuses on studying four technical issues related to SFM and its water removal applica-tions in fuels. The first proposes the concept of SFM, including filter medium structure and the coalescence filtration mechanism. The second addresses the conceptual designs of two coalescer elements, denoted as advanced and standard - these are made of the SFM coalescence medium and more traditional nonwoven filter media, respectively. The third briefly describes water droplet motion on the downstream surface of the advanced coalescer element. The fourth introduces experimental studies of water removal performance with the two coalescer elements for a No. 2 petrodiesel fuel and a B20 biodiesel blend. The preliminary experimental results shown demonstrate unprecedented water removal capabilities for the advanced coa-lescer element. For example, total volumetric water content in 4.8 GPM petrodiesel-water blend flow can be reduced from 10% upstream of the element to 200 ppm or less downstream of the element within a single pass. Source


Chen R.,Kaydon Filtration Corporation | Jose J.,Kaydon Filtration Corporation | Majestic P.,Kaydon Filtration Corporation | Mills T.,Kaydon Filtration Corporation | And 2 more authors.
Filtration and Separation in the New Energy Era - 2011 AFS Fall Topical Conference | Year: 2011

FCS systems are next generation fuel purification products. They are mainly designed based on US patent-pending, advanced coalescence filtration technology to solve very serious contaminations of both water and particulate in diesel fuels, including petroldiesel fuels and up to 20% biodiesel blends. This paper focuses on studying three technical-related issues of FCS systems. The first issue is about conceptual design of FCS filtration elements. The second issue is about conceptual design of FCS filtration vessel. The third issue is related with preliminary water removal performances of FCS systems in case of No. 2 ultra-low sulfur diesel fuel and B20 biodiesel blend at ambient temperature. Preliminary experimental results of fuel-water separation tests demonstrate unprecedented water removal capabilities of FCS systems. For example, total volumetric water contents in fuel-water blend stream at nominal flow rate and ambient temperature can be reduced from 10 % at FCS system inlet to less than 500 ppm at FCS system outlet within one single steady-state flow pass through FCS system equipped with one advanced FCS coalescer element. Besides the above water removal performance studies, water droplet motion on advanced FCS coalescer element at downstream side is shortly discussed. More detail of water droplet motion on advance FCS coalescer element in case of No.2 ultra-low sulfur diesel fuel and B20 biodiesel blend will be presented in the AFS conference presentation. Source

Discover hidden collaborations