Welcome!

News Feed Item

DENSO Develops EGR Valve Unit

World's first to integrate air intake throttle valve and EGR valve and half the size of conventional models

Kariya, Japan, Feb 18, 2014 - (JCN Newswire) - Global automotive supplier DENSO has developed an exhaust gas recirculation (EGR) valve unit, a major component of EGR systems that helps make diesel engine emissions cleaner. The new unit, the first in the world to integrate an air intake throttle valve and an EGR valve, is half the size of conventional models and requires fewer components, thus reducing costs. The unit will be installed in a diesel passenger vehicle to be sold in Europe from later this year.

Reducing size
Conventionally, air intake throttle valves and EGR valves were separately installed to vehicles. The air intake throttle valve controls the amount of air entering the engine and the EGR valve controls the amount of exhaust gas to be recirculated into the engine. By integrating the two valves into one unit, DENSO combined the ducts and reduced the connectors, resulting to reducing the size to half compared to previous models. As the EGR system needs to be installed in a limited space close to the engine, a smaller system enables automakers to design engines more flexibility.

Reducing cost
Conventionally, a motor for valve opening and closing, paired with a sensor to detect the valve opening and closing angle, were needed for both the air intake throttle valve and EGR valve. However, DENSO's new unit, which integrates the two valves, needs only one motor and one sensor, thus reducing the cost.

Flexible to meet various engine parameters
The air intake throttle valve and EGR valve are connected through a highly flexible coupling (cam-link mechanism), allowing the new unit to be applied to various engine parameters, including displacement and output, merely by changing the shape of the connection between the two valves (cam profile).

About diesel engine EGR systems

The diesel engine EGR system, which consists of an EGR valve, an air intake throttle valve, and an EGR cooler, recirculates a portion of the exhaust gas into the engine to lower the combustion temperature and hence reduce emissions of oxides of nitrogen (NOx). With the introduction of stricter exhaust emission regulations worldwide, including Euro 6 standards in Europe, this system has attracted much attention.

The main type of EGR system used today is the high pressure loop (HPL) EGR system where the exhaust gas to be recirculated is taken from an upstream section of the exhaust passage. However, this system has a disadvantage: diverting a fraction of the exhaust gas before the turbocharger that uses exhaust gas energy to force extra air into the engine reduces the amount of exhaust gas energy which can be used by the turbocharger, which makes it difficult for the forced induction device to produce high power. Therefore, the combination of a high pressure loop EGR with low pressure loop (LPL) EGR that takes the exhaust gas to be recirculated from a downstream section of the exhaust passage, is expected to be widely used in the future.

DENSO developments
DENSO has been mass-producing its first EGR valves used in LPL EGR systems since February 2011. It has also been mass-producing LPL EGR systems with a separate air intake throttle valve and EGR valve since November 2012. DENSO's new EGR valve unit is designed for LPL EGR systems. DENSO will continue to develop products and technologies to improve the environmental performance of diesel vehicles.

About Denso

DENSO Corporation, headquartered in Kariya, Aichi prefecture, Japan, is a leading global automotive supplier of advanced technology, systems and components in the areas of thermal, powertrain control, electronics and information and safety. Its customers include all the world's major carmakers. Worldwide, the company has more than 200 subsidiaries and affiliates in 38 countries and regions (including Japan) and employs more than 130,000 people. Consolidated global sales for the fiscal year ending March 31, 2013, totaled US$38.1 billion. For more information, go to www.globaldenso.com, or visit our media website at www.densomediacenter.com.



Source: Denso

Contact:
Sadayoshi Yokoyama, Goro Kanemasu 
DENSO CORPORATION 
Phone: 81-566-25-5594 
Fax: 81-566-25-4509 
[email protected] 
[email protected]


Copyright 2014 JCN Newswire. All rights reserved. www.japancorp.net

More Stories By JCN Newswire

Copyright 2008 JCN Newswire. All rights reserved. Republication or redistribution of JCN Newswire content is expressly prohibited without the prior written consent of JCN Newswire. JCN Newswire shall not be liable for any errors or delays in the content, or for any actions taken in reliance thereon.

Latest Stories
Is advanced scheduling in Kubernetes achievable? Yes, however, how do you properly accommodate every real-life scenario that a Kubernetes user might encounter? How do you leverage advanced scheduling techniques to shape and describe each scenario in easy-to-use rules and configurations? In his session at @DevOpsSummit at 21st Cloud Expo, Oleg Chunikhin, CTO at Kublr, will answer these questions and demonstrate techniques for implementing advanced scheduling. For example, using spot instances ...
Why Federal cloud? What is in Federal Clouds and integrations? This session will identify the process and the FedRAMP initiative. But is it sufficient? What is the remedy for keeping abreast of cutting-edge technology? In his session at 21st Cloud Expo, Rasananda Behera will examine the proposed solutions: Private or public or hybrid cloud Responsible governing bodies How can we accomplish?
Cloud-based disaster recovery is critical to any production environment and is a high priority for many enterprise organizations today. Nearly 40% of organizations have had to execute their BCDR plan due to a service disruption in the past two years. Zerto on IBM Cloud offer VMware and Microsoft customers simple, automated recovery of on-premise VMware and Microsoft workloads to IBM Cloud data centers.
SYS-CON Events announced today that Ryobi Systems will exhibit at the Japan External Trade Organization (JETRO) Pavilion at SYS-CON's 21st International Cloud Expo®, which will take place on Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. Ryobi Systems Co., Ltd., as an information service company, specialized in business support for local governments and medical industry. We are challenging to achive the precision farming with AI. For more information, visit http:...
SYS-CON Events announced today that mruby Forum will exhibit at the Japan External Trade Organization (JETRO) Pavilion at SYS-CON's 21st International Cloud Expo®, which will take place on Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. mruby is the lightweight implementation of the Ruby language. We introduce mruby and the mruby IoT framework that enhances development productivity. For more information, visit http://forum.mruby.org/.
With the rise of DevOps, containers are at the brink of becoming a pervasive technology in Enterprise IT to accelerate application delivery for the business. When it comes to adopting containers in the enterprise, security is the highest adoption barrier. Is your organization ready to address the security risks with containers for your DevOps environment? In his session at @DevOpsSummit at 21st Cloud Expo, Chris Van Tuin, Chief Technologist, NA West at Red Hat, will discuss: The top security r...
Smart cities have the potential to change our lives at so many levels for citizens: less pollution, reduced parking obstacles, better health, education and more energy savings. Real-time data streaming and the Internet of Things (IoT) possess the power to turn this vision into a reality. However, most organizations today are building their data infrastructure to focus solely on addressing immediate business needs vs. a platform capable of quickly adapting emerging technologies to address future ...
Cloud applications are seeing a deluge of requests to support the exploding advanced analytics market. “Open analytics” is the emerging strategy to deliver that data through an open data access layer, in the cloud, to be directly consumed by external analytics tools and popular programming languages. An increasing number of data engineers and data scientists use a variety of platforms and advanced analytics languages such as SAS, R, Python and Java, as well as frameworks such as Hadoop and Spark...
SYS-CON Events announced today that Mobile Create USA will exhibit at the Japan External Trade Organization (JETRO) Pavilion at SYS-CON's 21st International Cloud Expo®, which will take place on Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. Mobile Create USA Inc. is an MVNO-based business model that uses portable communication devices and cellular-based infrastructure in the development, sales, operation and mobile communications systems incorporating GPS capabi...
SYS-CON Events announced today that Enroute Lab will exhibit at the Japan External Trade Organization (JETRO) Pavilion at SYS-CON's 21st International Cloud Expo®, which will take place on Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. Enroute Lab is an industrial design, research and development company of unmanned robotic vehicle system. For more information, please visit http://elab.co.jp/.
Real IoT production deployments running at scale are collecting sensor data from hundreds / thousands / millions of devices. The goal is to take business-critical actions on the real-time data and find insights from stored datasets. In his session at @ThingsExpo, John Walicki, Watson IoT Developer Advocate at IBM Cloud, will provide a fast-paced developer journey that follows the IoT sensor data from generation, to edge gateway, to edge analytics, to encryption, to the IBM Bluemix cloud, to Wa...
SYS-CON Events announced today that Cedexis will exhibit at SYS-CON's 21st International Cloud Expo®, which will take place on Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. Cedexis is the leader in data-driven enterprise global traffic management. Whether optimizing traffic through datacenters, clouds, CDNs, or any combination, Cedexis solutions drive quality and cost-effectiveness.
SYS-CON Events announced today that Nihon Micron will exhibit at the Japan External Trade Organization (JETRO) Pavilion at SYS-CON's 21st International Cloud Expo®, which will take place on Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. Nihon Micron Co., Ltd. strives for technological innovation to establish high-density, high-precision processing technology for providing printed circuit board and metal mount RFID tags used for communication devices. For more inf...
SYS-CON Events announced today that Suzuki Inc. will exhibit at the Japan External Trade Organization (JETRO) Pavilion at SYS-CON's 21st International Cloud Expo®, which will take place on Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. Suzuki Inc. is a semiconductor-related business, including sales of consuming parts, parts repair, and maintenance for semiconductor manufacturing machines, etc. It is also a health care business providing experimental research for...
Many companies start their journey to the cloud in the DevOps environment, where software engineers want self-service access to the custom tools and frameworks they need. Machine learning technology can help IT departments keep up with these demands. In his session at 21st Cloud Expo, Ajay Gulati, Co-Founder, CTO and Board Member at ZeroStack, will discuss the use of machine learning for automating provisioning of DevOps resources, taking the burden off IT teams.