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50 years of Bosch electric fuel pumps



Bosch Portugal
Corporate Communication
Av. Infante D. Henrique, Lote 2E-3E
1800-220 Lisboa
Phone: +351 218 500 117


2017-09-21 | Portugal | Product News

First series application in 1967 with D-Jetronic

  • Bosch electric fuel pumps reliably supply injection systems of gasoline and diesel engines with fuel
  • Wide OE product range and efficient maintenance
  • Continuous further development of fuel pumps into smaller, more robust, more powerful and more efficient fuel pumps

Concomitant with the world’s first electronic manifold-pressure-controlled gasoline injection system – Bosch D-Jetronic – launched in 1967, the newly developed electric gasoline pump was first used as well. Accordingly, this year marks the 50th anniversary of both the D-Jetronic system and the electric gasoline pump. VW 1600 LE/TLE (Type 3) was the first car featuring a D-Jetronic system for four-stroke gasoline engines as integral part of its standard equipment. Prior to the era of electronic injection systems, mechanical fuel pumps were used to supply the engine with fuel. As early as 1954, the legendary Mercedes 300 SL was already equipped with a Bosch injection system. In 1959, Bosch started developing an electronically controlled injection systems. At the same time, the electric gasoline pump based on a rollercell pump with five cells combined with a permanent-magnet electric motor was developed.

Starting in 1985, the peripheral pump substituted the rollercell pump

Further improvement of electric fuel pumps was running in parallel with the improvement of gasoline and diesel injection systems. In 1979, Bosch thus launched a fuel pump onto the aftermarket, that allowed generating high pressures and providing delivery qualities of air-flow-controlled L-Jetronic and mechanical/hydraulic K-Jetronic gasoline injection systems. In 1985, the start of the series production of the first peripheral pump marked yet another milestone regarding the development of Bosch fuel-pump technologies. It completely substituted the rollercell pump throughout the following years.

The first electric fuel pumps reliably supplying the injection system with fuel were installed afar from the tank within the fuel lining (“in-line” fuel pumps). Today, however, most of the pumps are installed inside the fuel tank (“in-tank” pumps). Besides electric fuel pumps, modern fuel supply modules also include fuel filters, fuel pressure regulators and fuel-level sensors as an integral parts of in-tank units. Having prevailed at diesel engines as well by now, electric fuel pumps have become state of the art for all combustion engines.

Repair kits for straightforward and value-based maintenance

Bosch constantly continues improving fuel pumps even further turning them into even more robust, more powerful and smaller components. Today, the company offers a wide product range comprising more than 450 in-tank modules, 60 fuel-pump kit solutions and 120 fuel pumps. Stringent test routines and quality checks ensure the high performance and reliability as well as the long service life of Bosch fuel pumps. In addition to the original equipment, perfectly fitting repair kits for value-based, quick and easy maintenance tasks are also available for automotive workshops.

Irrespective of their operating conditions, electric fuel pumps are to supply the engine with sufficient fuel for the required injection pressure. Apart from this, the pump is also used more and more often as a pre-supply pump in modern direct-injection systems of gasoline and diesel engines. Bosch also provides solutions for fuel supply units with sophisticated types of tanks – e.g. saddle tanks and with fuel tanks featuring large surface geometries. These fuel pumps provide fuel flow rates between 60 and 200 l/h at rated voltage and fuel-system pressure between 300 and 450 kPa (3 - 4.5 bar). In addition, the design of Bosch pumps and fuel modules guarantees driver a high level of safety through a variety of safety devices such as rollover valve and pressure dampeners.

Bosch is represented in Portugal by Bosch Termotecnologia in Aveiro, Bosch Car Multimedia Portugal in Braga, and Bosch Security Systems – Sistemas de Segurança, in Ovar. At these locations, Bosch develops and manufactures hot water solutions, car multimedia and security and communication systems, over 85% of which are exported to international markets. The Bosch Group’s Portuguese headquarters is located in Lisbon with central functions for sales, marketing, accounting and communication as well as a team which offers human resources related shared services for the Bosch Group. In addition, Bosch operates a subsidiary of BSH Hausgeräte GmbH in Lisbon. With more than 4,000 associates (as per December 31, 2016), Bosch is one of the largest industrial employers in Portugal with total net sales of 1.1 billion euros in 2016 including internal deliveries to affiliated companies.

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Bosch Group

The Bosch Group is a leading global supplier of technology and services. It employs roughly 390,000 associates worldwide (as of December 31, 2016). The company generated sales of 73.1 billion euros in 2016. Its operations are divided into four business sectors: Mobility Solutions, Industrial Technology, Consumer Goods, and Energy and Building Technology. As a leading IoT company, Bosch offers innovative solutions for smart homes, smart cities, connected mobility, and connected manufacturing. It uses its expertise in sensor technology, software, and services, as well as its own IoT cloud, to offer its customers connected, cross-domain solutions from a single source. The Bosch Group’s strategic objective is to deliver innovations for a connected life. Bosch improves quality of life worldwide with products and services that are innovative and spark enthusiasm. In short, Bosch creates technology that is “Invented for life.” The Bosch Group comprises Robert Bosch GmbH and its roughly 440 subsidiaries and regional companies in some 60 countries. Including sales and service partners, Bosch’s global manufacturing and sales network covers nearly every country in the world. The basis for the company’s future growth is its innovative strength. At 120 locations across the globe, Bosch employs some 59,000 associates in research and development.

The company was set up in Stuttgart in 1886 by Robert Bosch (1861-1942) as “Workshop for Precision Mechanics and Electrical Engineering.” The special ownership structure of Robert Bosch GmbH guarantees the entrepreneurial freedom of the Bosch Group, making it possible for the company to plan over the long term and to undertake significant upfront investments in the safeguarding of its future. Ninety-two percent of the share capital of Robert Bosch GmbH is held by Robert Bosch Stiftung GmbH, a charitable foundation. The majority of voting rights are held by Robert Bosch Industrietreuhand KG, an industrial trust. The entrepreneurial ownership functions are carried out by the trust. The remaining shares are held by the Bosch family and by Robert Bosch GmbH.

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