Throttles

• Main Authors: SAKURAI TORU, TSUGE TAKASHI, NISHITANI TSUTOMU
• Format: Patent
• Language: English
• Published: 03.12.2002
• Edition: 7
• Subjects: BLASTING; COMBUSTION ENGINES; CONTROLLING COMBUSTION ENGINES; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; LIGHTING; MECHANICAL ENGINEERING; WEAPONS

A throttle gear 5 is fastened to a throttle shaft 2. A relief lever 9 is pivotally mounted on the throttle shaft 2. A return spring 11 urges the relief lever 9 in a valve closing direction with respect to a throttle body 1. The throttle body 1 contacts the relief lever 9 at a second contact position 20A when the relief lever 9 pivots to a predetermined pivot position B in the valve closing direction. A relief spring 10 urges the throttle gear 5 in a valve opening direction with respect to the relief lever 9. The relief lever 9 contacts the throttle gear 5 at a first contact position 20B when the throttle gear 5 pivots to the predetermined pivot position B in the valve opening direction. The first and second contact positions 20B, 20A are located within or to one side of a plane P that is perpendicular to the rotational axis L of the throttle shaft 2. Plane P preferably includes a third position 20C at which the biasing force of the return spring 11 acts on the relief lever 9.