Ön seçici şanzıman

1934 Daimler Fifteen'in direksiyon kolonundaki vites kolu

Ön seçici şanzıman, 1930'larda binek ve yarış otomobillerinde, 1940-1960 arası otobüslerde ve 1930'lardan 1970'lere kadar zırhlı araçlarda kullanılan bir manuel şanzıman türüdür. Bir ön seçici vites kutusunun belirleyici özelliği, vites kolunun sürücünün bir sonraki vitesi "önceden seçmesine" izin vermesidir, sürücü istenen zamanda "vites değiştirme pedalına" basana kadar şanzıman mevcut viteste kalır.

Tasarım, senkronize olmayan manuel şanzımanda yumuşak bir vites değiştirmek için gerekli olan sürücünün debriyaj pedalı ve vites kolu kullanma zamanlamasında ustalaşması ihtiyacını ortadan kaldırır.[1] Çoğu ön seçici şanzıman, sürücü kontrollü bir debriyaja hiç ihtiyaç duymaz. Bazı modellerde ise sadece durma ve ilk kalkışta debriyaj kullanılır.[2] Ön seçici dişli kutuları, otomatik şanzımanın yaygın olarak benimsenmesinden önce yaygındı.

Ön seçici vites kutuları genellikle "kendiliğinden değişen" vites kutuları olarak pazarlanmaktadır,[1] ancak sürücünün vitesi seçmesi (ve genellikle vites değişimini manuel olarak yapması) gerektiğinden bu yanlış bir tanımdır. Otomatik şanzıman, gerçek bir "kendini değiştiren şanzıman" dır, çünkü herhangi bir sürücü müdahalesi olmadan vites değiştirebilir.

Ön seçici vites kutusu için birbirinden farklı birçok mekanik tasarım vardır. En iyi bilinen Wilson tasarımıdır.[3] Cotal gibi bazı dişli kutuları ayrı bir vites değiştirme pedalına ihtiyaç duymadan, kontrol hareket ettikçe vitesleri derhal değiştirir.

Kaynakça

  1. ^ a b Autocar handbook, 13th.
  2. ^ Setright (1976).
  3. ^ Peter Banjo Meyer: The Wilson Preselector Gearbox, Armstrong Siddeley Type; pbm verlag, Seevetal, Hamburg, Germany, 2011

Read other articles:

Etlingera

Etlingera Etlingera elatior Klasifikasi ilmiah Kerajaan: Plantae Upakerajaan: Trachaeophyta Divisi: Magnoliophyta Kelas: Liliopsida Subkelas: Commelinidae Ordo: Zingiberales Famili: Zingiberaceae Subfamili: Alpinioideae Tribus: Alpinieae Genus: EtlingeraGiseke, 1792 Spesies Lihat teks Sinonim[1] Geanthus Reinw. 1828, illegitimate homonym, not Raf. 1814 Diracodes Blume Bojeria Raf. Achasma Griff. Nicolaia Horan. Phaeomeria Lindl. ex K.Schum. in H.G.A.Engler Etlingera adalah genus tumb...

 

Bouleau

Betula Pour les articles ayant des titres homophones, voir Boulaud, Boulo et Boulot. Pour les articles homonymes, voir Bouleau (homonymie). Si ce bandeau n'est plus pertinent, retirez-le. Cliquez ici pour en savoir plus. Cet article contient une ou plusieurs listes (mars 2021). Ces listes gagneraient à être rédigées sous la forme de paragraphes synthétiques, plus agréables à la lecture, les listes pouvant être aussi introduites par une partie rédigée et sourcée, de façon à bien r...

 

Ираклеониты

Ираклеониты — ученики гностика Ираклеона (II век). Упоминаются как особая секта Епифанием и Августином; при крещении и миропомазании они соблюдали обряд помазания елеем и при этом произносили воззвания на арамейском языке, которые должны были освободить душу от власт�...

Cannon Coaster

Cannon CoasterConey IslandLocationConey IslandCoordinates40°34′30″N 73°58′48″W / 40.575°N 73.98°W / 40.575; -73.98StatusRemovedOpening date1902 (1902)Closing date1907 (1907)General statisticsTypeWoodManufacturerGeorge Francis MeyerHeight40 ft (12 m)Cannon Coaster at RCDB Cannon Coaster,[1] sometimes known as Leap-the-Gap,[2] was a wooden roller coaster which operated on Bowery Street in Coney Island, Brooklyn, New York, i...

 

Sanbenito

Artikel ini sebatang kara, artinya tidak ada artikel lain yang memiliki pranala balik ke halaman ini.Bantulah menambah pranala ke artikel ini dari artikel yang berhubungan atau coba peralatan pencari pranala.Tag ini diberikan pada Februari 2023. Sanbenito (sambenito dalam bahasa Spanyol,[1][2] gramalleta atau sambenet dalam bahasa Catalan) adalah topi berbentuk kerucut yang digunakan sebagai sebuah bentuk hukuman terutama ketika masa Inkuisisi Spanyol. Topi ini disertai dengan...

 

Eric Marshall

British Antarctic explorer (1879–1963) This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed.Find sources: Eric Marshall – news · newspapers · books · scholar · JSTOR (April 2018) (Learn how and when to remove this message) Lieutenant ColonelEric MarshallCBE MCMarshall in 1908Born(1879-05-29)29 May 1879Hampstead, Surrey, ...

Francesco Varicelli

Questa voce sull'argomento calciatori italiani è solo un abbozzo. Contribuisci a migliorarla secondo le convenzioni di Wikipedia. Segui i suggerimenti del progetto di riferimento. Francesco Varicelli Nazionalità  Italia Calcio Ruolo Difensore Termine carriera 1959 CarrieraGiovanili 19??-1942 SavonaSquadre di club1 1942-1943 Cairese10 (0)1945-1947 Savona40+ (?)1947-1949 Cremonese67 (0)1949-1950 SPAL37 (1)1950-1953 Livorno32 (0)1956-1957 Savona25 ...

 

Население Татарстана

Численность населения республики по данным Росстата составляет 4 003 016[1] чел. (2024). Татарстан занимает 8-е место по численности населения среди субъектов Российской Федерации[2]. Плотность населения — 59,00 чел./км² (2024). Городское население — 76,72[3] % (20...

 

The Greenback Era

History book by Irwin Unger The Greenback Era First editionAuthorIrwin UngerCountryUnited StatesLanguageEnglishGenreNon-fictionPublisherACLS History E-Book Project and Princeton University PressPublication date1964Pages467ISBN978-1597401685 The Greenback Era: A Social and Political History of American Finance, 1865-1879 is a nonfiction history book by American historian Irwin Unger, published in 1964 by Princeton University Press. It won the 1965 Pulitzer Prize for History.[1] It is a...

Державний комітет телебачення і радіомовлення України

Державний комітет телебачення і радіомовлення України (Держкомтелерадіо) Приміщення комітетуЗагальна інформаціяКраїна  УкраїнаДата створення 2003Керівне відомство Кабінет Міністрів УкраїниРічний бюджет 1 964 898 500 ₴[1]Голова Олег НаливайкоПідвідомчі ор...

 

スターどっきり（秘）報告

この項目では、フジテレビのバラエティ番組について説明しています。KBCラジオのワイド番組については「スター高橋 ドッキリ!マル秘報告」をご覧ください。 この記事には複数の問題があります。改善やノートページでの議論にご協力ください。 出典がまったく示されていないか不十分です。内容に関する文献や情報源が必要です。（2018年3月） 独自研究が含まれて...

 

علم الإنسان الاجتماعي

علم الإنسان الاجتماعيصنف فرعي من علم الإنسان جزء من social and cultural anthropology (en) يمتهنه social anthropologist (en) تعديل - تعديل مصدري - تعديل ويكي بيانات تحتوي هذه المقالة اصطلاحات معربة غير مُوثَّقة. لا تشمل ويكيبيديا العربية الأبحاث الأصيلة، ويلزم أن تُرفق كل معلومة فيها بمصدر موثوق به. فضل...

Horsens Municipality

For the article about the city in Denmark with the same name, see Horsens. Municipality in Central Denmark, DenmarkHorsens Municipality Horsens Kommune (Danish)Municipality FlagCoat of armsLocation in DenmarkCoordinates: 55°52′N 9°50′E / 55.86°N 9.84°E / 55.86; 9.84CountryDenmarkRegionCentral DenmarkEstablished1 January 2007Government • MayorPeter SørensenArea • Total515.2 km2 (198.9 sq mi)Population (1. January...

 

David Forde

David Forde Informasi pribadiNama lengkap David FordeTanggal lahir 20 Desember 1979 (umur 44)Tempat lahir Galway, IrlandiaTinggi 1,88 m (6 ft 2 in)Posisi bermain Penjaga gawangInformasi klubKlub saat ini MillwallNomor 1Karier senior*Tahun Tim Tampil (Gol)1999–2001 Galway United 38 (0)2001–2002 Barry Town 16 (0)2002–2004 West Ham United 0 (0)2003 → Derry City (pinjaman) 4 (0)2003 → Barnet (pinjaman) 7 (0)2004 Galway United 22 (0)2005–2006 Derry City 63 (0)2006�...

 

Frankfurter Wachensturm

Attempted revolution in Frankfurt, Germany Contemporary illustration of the Wachensturm The Frankfurter Wachensturm (German: charge of the Frankfurt guard house) on 3 April 1833 was a failed attempt to start a revolution in Germany. Events About 50 students attacked the soldiers and policemen of the Frankfurt Police offices Hauptwache and Konstablerwache to try to gain control over the treasury of the German Confederation to start a revolution in all German states. However, because the plot h...

Robust capuchin monkey

Genus of mammals belonging to the capuchin and squirrel monkey family of primates Robust capuchin monkey[1]Temporal range: Late Miocene to present Four species of robust capuchins, from top to bottom, from left to right: S. flavius, S. xanthosternos, S. nigritus, S. libidinosus Scientific classification Domain: Eukaryota Kingdom: Animalia Phylum: Chordata Class: Mammalia Order: Primates Suborder: Haplorhini Infraorder: Simiiformes Family: Cebidae Subfamily: Cebinae Genus: SapajusKerr,...

 

Yeti Holdings

American manufacturing company For other uses of Yeti, see Yeti (disambiguation). YETI Holdings, Inc.Company typePublicTraded asNYSE: YETIS&P 400 componentISINUS98585X1046Founded2006; 18 years ago (2006)FoundersRyan and Roy SeidersHeadquartersAustin, Texas, U.S.ProductsCoolers, drinkware, gearRevenue US$1.66 billion (2023)Net income US$169.9 million (2023)Websiteyeti.comFootnotes / references[1] A display of Yeti products at Academy Sports + Outdoor...

 

Astrophysical jet

Beam of ionized matter flowing along the axis of a rotating astronomical object The starburst galaxy Centaurus A, with its plasma jets extending over a million light years, is considered as the closest active radio galaxy to Earth. The 870-micron submillimetre data, from LABOCA on APEX, are shown in orange. X-ray data from the Chandra X-ray Observatory are shown in blue. Visible light data from the Wide Field Imager (WFI) on the MPG/ESO 2.2 m telescope located at La Silla, Chile, show the bac...

John Carmack

John CarmackJohn Carmack à la GDC 2010FonctionDirecteur techniqueReality Labs (en)depuis le 7 août 2013BiographieNaissance 21 août 1970 (53 ans)Roeland Park (Kansas)Nationalité américaineDomiciles Zone métropolitaine de Kansas City, HeathFormation Université du Missouri à Kansas CityShawnee Mission East High School (en)Raytown South High School (en)Activités Directeur technique, ingénieur, homme d'affaires, informaticien, ingénieur aéronautique, programmeur, développeur de j...

 

Abu Wahab Abdullah ibn Umayr

Muslim martyr The topic of this article may not meet Wikipedia's notability guideline for biographies. Please help to demonstrate the notability of the topic by citing reliable secondary sources that are independent of the topic and provide significant coverage of it beyond a mere trivial mention. If notability cannot be shown, the article is likely to be merged, redirected, or deleted.Find sources: Abu Wahab Abdullah ibn Umayr – news · newspapers · books · ...