A diesel locomotive is a type of railway locomotive in which the prime mover is a diesel engine. Several types of diesel locomotive have been developed, differing in the means by which mechanical power is conveyed to the driving wheels. Early internal combustion locomotives and railcars used gasoline as their fuel. Rudolf Diesel patented his first compression ignition engine in 1898, steady improvements to the design of diesel engines reduced their physical size and improved their power-to-weight ratios to a point where one could be mounted in a locomotive. Internal combustion engines only operate efficiently within a limited torque range, while low power gasoline engines could be coupled to mechanical transmissions, the more powerful diesel engines required the development of new forms of transmission; this is because clutches would need to be large at these power levels and would not fit in a standard 2.5 m -wide locomotive frame, or wear too to be useful. The first successful diesel engines used diesel–electric transmissions, by 1925 a small number of diesel locomotives of 600 hp were in service in the United States.
In 1930, Armstrong Whitworth of the United Kingdom delivered two 1,200 hp locomotives using Sulzer-designed engines to Buenos Aires Great Southern Railway of Argentina. In 1933, diesel-electric technology developed by Maybach was used to propel the DRG Class SVT 877, a high-speed intercity two-car set, went into series production with other streamlined car sets in Germany starting in 1935. In the United States, diesel-electric propulsion was brought to high-speed mainline passenger service in late 1934 through the research and development efforts of General Motors dating back to the late 1920s and advances in lightweight car body design by the Budd Company; the economic recovery from World War II caused the widespread adoption of diesel locomotives in many countries. They offered greater flexibility and performance than steam locomotives, as well as lower operating and maintenance costs. Diesel–hydraulic transmissions were introduced in the 1950s, from the 1970s onwards, diesel–electric transmissions have dominated.
The earliest recorded example of the use of an internal combustion engine in a railway locomotive is the prototype designed by William Dent Priestman, examined by William Thomson, 1st Baron Kelvin in 1888 who described it as a " mounted upon a truck, worked on a temporary line of rails to show the adaptation of a petroleum engine for locomotive purposes." In 1894, a 20 hp two-axle machine built by Priestman Brothers was used on the Hull Docks. In 1896, an oil-engined railway locomotive was built for the Royal Arsenal in Woolwich, using an engine designed by Herbert Akroyd Stuart, it was not a diesel, because it used a hot bulb engine. Rudolf Diesel considered using his engine for powering locomotives in his 1893 book Theorie und Konstruktion eines rationellen Wärmemotors zum Ersatz der Dampfmaschine und der heute bekannten Verbrennungsmotoren. However, the massiveness and poor power-to-weight ratio of early diesel engines made them unsuitable for propelling land-based vehicles. Therefore, the engine's potential as a railroad prime mover was not recognized.
This changed as development reduced the weight of the engine. In 1906, Adolf Klose and the steam and diesel engine manufacturer Gebrüder Sulzer founded Diesel-Sulzer-Klose GmbH to manufacture diesel-powered locomotives. Sulzer had been manufacturing diesel engines since 1898; the Prussian State Railways ordered a diesel locomotive from the company in 1909, after test runs between Winterthur and Romanshorn the diesel–mechanical locomotive was delivered in Berlin in September 1912. The world's first diesel-powered locomotive was operated in the summer of 1912 on the Winterthur–Romanshorn railroad in Switzerland, but was not a commercial success. During further test runs in 1913 several problems were found. After the First World War broke out in 1914, all further trials were stopped; the locomotive weight was 95 tonnes and the power was 883 kW with a maximum speed of 100 km/h. Small numbers of prototype diesel locomotives were produced in a number of countries through the mid-1920s. Adolphus Busch purchased the American manufacturing rights for the diesel engine in 1898 but never applied this new form of power to transportation.
He founded the Busch-Sulzer company in 1911. Only limited success was achieved in the early twentieth century with internal combustion engined railcars, due, in part, to difficulties with mechanical drive systems. General Electric entered the railcar market in the early twentieth century, as Thomas Edison possessed a patent on the electric locomotive, his design being a type of electrically-propelled railcar. GE built its first electric locomotive prototype in 1895. However, high electrification costs caused GE to turn its attention to internal combustion power to provide electricity for electric railcars. Problems related to co-ordinating the prime mover and electric motor were encountered due to limitations of the Ward Leonard current control system, chosen. GE Rail was formed in 1907 and 112 years in 2019, was purchased by and merged with Wabtec. A significant breakthrough occurred in 1914, when Hermann Lemp, a GE electrical engineer and patented a reliable control system that controlled the engine and traction motor with a single lever.
Lemp's design solved the problem of overloading and damaging the traction motors with excessive electrical power at low speeds, was the prototype for all in
Utö hus is a medieval manor on Arnö island in lake Mälaren in Uppland, Sweden. The manor is mentioned in written sources for the first time in beginning of the 15th century. At the time, it belonged to the Schack family. In the 1630s, the estate was merged with neighbouring estate of Grönsö Manor when the Chancellor of Uppsala University Johan Skytte married Maria Näf; the building was repaired circa 1740 and inhabited until the 1840s, when it was transformed into a storage. In 1937 the building was donated to the Royal Swedish Academy of Letters and Antiquities by Alice von Ehrenheim; the manor is a rectangular medieval manor house with crow-stepped gables. It consists of two proper floors and two attic floors; the current division of rooms seems to date from the first half of the 17th century. Media related to Utöhus at Wikimedia Commons
Por amar sin ley is a Mexican telenovela produced by José Alberto Castro that premiered on Las Estrellas on 12 February 2018. It is a remake of a 2016 Colombian telenovela La ley del corazón; the telenovela revolves around the personal life and work of a group of lawyers belonging to a prestigious law firm. Portrayed by Ana Brenda Contreras, Alejandra Ponce is a lawyer specialized in family law. During her wedding to Carlos, the police arrest him interrupting the wedding. After a while Alejandra gets to know Ricardo, thanks to him she starts working at Vegas y Asociados. Portrayed by David Zepeda, Ricardo Bustamante he is a senior lawyer in family law. Ricardo is a honorable man; when his wife Elena is unfaithful to him, he decides to divorce her. Ricardo has two stepchildren and Natalia, whom he considers his own children. Portrayed by Julián Gil, Carlos Ibarra is a renowned lawyer. Carlos is best known as a criminal lawyer representing various defendants accused of serious crimes including murder.
He is willing to do anything necessary to get more money and power. On the day of his wedding to Alejandra, he was arrested for accused of the murder of Patricia, a sex worker, with him the night before his wedding. Portrayed by José María Torre Hütt, Roberto Morelli is a lawyer of Vegas y Asociados, he is a womanizing man who likes to go to parties. Roberto is Leonardo's best friend, he tries to conquer Victoria, but she does not let herself be fall in love by him. Portrayed by Sergio Basañez, Gustavo Soto is a prestigious lawyer of Vegas y Asociados. Gustavo maintains a relationship with his lover, but after realizing that what she did was wrong, he decides to end her lover, but when Milena frustrated and feels betrayed by Gustavo, she does everything possible to make her marriage to Isabel come to an end. Portrayed by Altair Jarabo, Victoria Escalante she is a specialist in family cases, she has a romantic interest with Roberto, but since she is a feminist woman who believes that men are not necessary for a woman to be powerful, she decides to ignore him.
Victoria is a brave woman who defends the rights of women. Portrayed by Guillermo García Cantú, Alonso Vega he is the owner of the law firm Vega y Asociados. Alonso is the one who keeps track of all the cases his lawyers have. Portrayed by Pablo Valentín, Benjamín Acosta is an ambitious lawyer of the company Vega Y Asociado. Benjamín has a wife and children, but maintains a relationship with Leticia, with her he tries to do everything possible to be recognized for his efforts in the company. Portrayed by Ilithya Manzanilla, Olivia Suárez she is a dedicated lawyer in cases of family abuse. Olivia is a romantic woman who believes in love, she is secretly in love with Leonardo his platonic love. Portrayed by Geraldine Bazán, Elena Fernández is the Patricia mother; as a result of a clandestine relationship that took place outside of her marriage, Elena divorces Ricardo, but she does not accept having divorced so she tries to get Ricardo back. Portrayed by Moisés Arizmendi, Alan Páez he is Carlo's cousin.
He is a mediocre lawyer who only feels envy and hatred towards his cousin, since he is more recognized in the professional field. Portrayed by Manuel Balbi, Leonardo Morán is a lawyer for Vegas y Asociados. Leonardo is a handsome, intelligent and professional man, man in his forties. A lawyer specialized in criminal law, dedicated to his work, he is always there to give him good advice. Leonardo is a correct and responsible man, why he has a lot of credibility, both in the law firm and in the courts of Mexci City