摘要:
A friction clutch wherein a pressure plate is axially movably but non-rotatably coupled to a cover and is biased by a diaphragm spring to urge the friction linings of a clutch disc against a flywheel which is driven by the engine of a motor vehicle. The diaphragm spring is tiltable relative to a seat which is carried by the cover, and a second spring is provided to bias a portion of the seat against the diaphragm spring. The latter can be moved axially of the flywheel to compensate for wear upon the friction linings, particularly when the flywheel is idle or is driven at a relatively low speed. The device which compensates for wear upon the friction linings is installed between the diaphragm spring and the cover, and its purpose is to ensure that the bias of the diaphragm spring upon the pressure plate in engaged condition of the friction clutch remains at least nearly constant regardless of the extent of wear upon the friction linings and certain other parts including the diaphragm spring, the pressure plate, springs which form part of the clutch disc to urge two sets of friction linings axially and away from each other against the flywheel and the pressure plate, respectively, and leaf springs which connect the pressure plate to the cover.
摘要:
A friction clutch wherein a pressure plate is axially movably but non-rotatably coupled to a cover and is biased by a diaphragm spring to urge the friction linings of a clutch disc against a flywheel which is driven by the engine of a motor vehicle. The diaphragm spring is tiltable relative to a seat which is carried by the cover, and a second spring is provided to bias a portion of the seat against the diaphragm spring. The latter can be moved axially of the flywheel to compensate for wear upon the friction linings, particularly when the flywheel is idle or is driven at a relatively low speed. The device which compensates for wear upon the friction linings is installed between the diaphragm spring and the cover, and its purpose is to ensure that the bias of the diaphragm spring upon the pressure plate in engaged condition of the friction clutch remains at least nearly constant regardless of the extent of wear upon the friction linings and certain other parts including the diaphragm spring, the pressure plate, springs which form part of the clutch disc to urge two sets of friction linings axially and away from each other against the flywheel and the pressure plate, respectively, and leaf springs which connect the pressure plate to the cover.
摘要:
A friction clutch wherein an adjusting device serves to compensate for wear at least upon the friction linings of the clutch disc between the driven counterpressure plate and the axially movable pressure plate. The purpose of the adjusting device is to ensure that the bias of the clutch spring upon the pressure plate remains at least substantially unchanged. The adjusting device satisfies such requirement due to the provision of a device which compensates for departures of the actual position of the clutch actuating unit from an optimum position or which compensates for the departures of those portions of the actuating unit relative to a clutch disengaging member from an optimum position which are acted upon by the actuating unit.
摘要:
A friction clutch has a pressure plate which is axially movably but non-rotatably coupled to a flywheel on the output element of the engine in a motor vehicle and is acted upon by a diaphragm spring which causes the pressure plate and the flywheel to frictionally engage the friction linings of a clutch disc when the clutch is engaged. The wear upon the friction linings is compensated by a device which causes the diaphragm spring to move toward the flywheel and operates between the clutch housing and the diaphragm spring.
摘要:
A friction clutch wherein the pressure plate is urged against the adjacent friction linings of the clutch disc by a diaphragm spring which reacts against a seat at the inner side of the clutch housing and bears against the pressure plate, at least when the clutch is engaged. The diaphragm spring is of one piece with or carries a resilient device which reacts against ramps at the exposed side of the housing and urges the diaphragm spring toward the seat. The ramps and the seat form part of a unit which automatically compensates for wear upon the friction linings of the clutch disc.
摘要:
Recombinant microorganisms comprising DNA molecules in a deregulated form which improve the production of cadaverine or N-acetylcadaverine, as well as recombinant DNA molecules and polypeptides used to produce the microorganisms are provided. Said microorganisms comprise an intracellular lysine decarboxylase activity and a deregulated cadaverine export activity, or comprise a decreased cadaverine export activity and an enhanced N-acetylcadaverine forming activity. Processes for the production of cadaverine N-acetylcadaverine using the recombinant microorganisms are also provided.
摘要:
The present invention relates to microorganisms and processes for the efficient preparation of L-methionine. In particular, the present invention relates to processes in which the amount of serine available for the metabolism of the microorganism is increased.
摘要:
A military motor vehicle for transporting personnel, comprising a chassis on which are successively disposed a driver's cabin and an upwardly open transport structure that can be covered by a tarpaulin and has seats and/or benches. A roll protection device is disposed on the upper side of the transport structure and comprises two roll bars, each of which is disposed over a side wall of the transport structure and extends in the longitudinal direction and over the entire length thereof. Each end of each roll bar is releasably attached to the transport structure. The roll bars are interconnected by reinforcing elements that extend transverse to the longitudinal direction.
摘要:
The present invention features methods of increasing the production of a fine chemical, e.g., lysine from a microorganism, e.g., Corynebacterium by way of deregulating an enzyme encoding gene, i.e., fructose-1,6-bisphosphatase. In a preferred embodiment, the invention provides methods of increasing the production of lysine in Corynebacterium glutamicum by way of increasing the expression of fructose-1,6-bisphosphatase activity. The invention also provides a novel process for the production of lysine by way of regulating carbon flux towards oxaloacetate (OAA). In a preferred embodiment, the invention provides methods for the production of lysine by way of utilizing fructose or sucrose as a carbon source.
摘要:
The present invention is directed to a method utilizing a recombinant microorganism for the production of aspartate derived amino acids and precursors thereof, in particular for the production of L-lysine. Furthermore, the present invention relates to a recombinant microorganism having improved aspartate-derived amino acid synthesis activity in comparison to the initial microorganism and the use of such microorganisms in producing said amino acids and precursors and derivatives, in particular in the synthesis of L-lysine.