摘要:
A water-cooled cylinder head is provided for a multicylinder internal-combustion engine having two inlet and outlet valves per cylinder. The cylinder head has a cylinder head cooling space with inflow and outflow openings for the coolant which is integrated in the cylinder head housing and extends above a part-spherical cap forming a combustion chamber volume. Water cooling spaces are formed at least in areas around a receiving opening for a spark plug arranged centrally in the cylinder head housing and around the two outlet valves. The water cooling spaces are mutually connected by way of a common annulus section. At least the common water cooling jacket annulus section has a volume which remains an essentially constant distance from the combustion chamber volume, so that, at least in this area, the wall thickness of the part-spherical combustion chamber cap extends in a uniform manner and to close to the combustion chamber volume.
摘要:
A water-cooled cylinder head for a multicylinder internal-combustion engine, has a cylinder head housing which has charge cycle ducts, passage bores for receiving cylinder head screws, valve stem guides for inlet and outlet valves controlling the charge cycle ducts, and part-spherical combustion chamber caps which are bounded by a water cooling jacket on a side facing away from the combustion chamber. One spark plug dome respectively has an opening leading to the combustion chamber of the respective cylinder. For reinforcing the cylinder head housing and/or for supporting the part-spherical combustion chamber caps, a rib structure is integrated in the cylinder head housing.
摘要:
A valve-actuating mechanism for a multicylinder internal combustion engine has, for each inlet valve of a cylinder, a low engine speed cam and a high engine speed cam. A first rocker arm cooperates with the low engine speed cam and the valve, while a second rocker arm cooperates only with the high engine speed cam and in the high engine speed range can be coupled to the first rocker arm in order to operate the valve in accordance with the contour of the high engine speed cam. The coupling between the first and second rocker arms is effected by means of a piston which can be moved by a pressure medium and which is acted on by the latter only when sufficient time remains to bring the piston into its coupling position before the commencement of the lifting phase of the valve in question.
摘要:
An actuating mechanism for three inlet valves of a cylinder of an internal combustion engine has three first rocker arms, each of which actuates an inlet valve and is actuated by a first cam for a lower revolution speed range, and two second rocker arms which are arranged between adjacent first rocker arms and are actuated by second cams for the upper speed range. The first and second rocker arms are coupled in the upper speed range so that the valves are actuated in accordance with the contour of the second cams.
摘要:
A valve train with a variable valve timing mechanism for at least one intake or exhaust valve E has a cam shaft with a low-speed cam and a high-speed cam. A first rocker lever interacts with the low-speed cam and the valve E. A second rocker lever interacts with the high-speed cam and can be connected to the first rocker lever via a coupling pin. To press the second rocker lever against its cam, a spring system is provided and this is formed by at least one spring, which, during the base circle phase, rests in a prestressed state directly or indirectly against a fixed stop and the rocker lever is thus relieved of load in order to reduce friction and wear.
摘要:
A trash can device for assisting a user in lifting and removing a trash can liner from a trash can. The device includes a container having a base, one or more sidewalls, and an open upper end. The device further includes an interior volume in which a trash can liner can be placed. The sidewalls comprise an upper end and a lower end. The lower end of at least one sidewall includes one or more recessed foot supports that serve as footholds, allowing the user to hold the trash can in place with his or her foot while removing the trash can liner therefrom. The device further includes a lid removably attached to the open upper end of the container so to conceal the garbage therein and one or more handles permanently affixed to the sidewalls to allow the user to lift or move the device.
摘要:
The invention relates to a device for processing an edible product in the form a viscous to pasty mass (1), especially an edible product based on a fat mass, such as chocolate, or based on water, such as ice cream. Said device comprises a dosing unit (2) for the dosed delivery of a specific volume of the mass (1) to shaping units (13). The movement of the displacement element (6) determining the dosage volume is performed via servo drive (9) while an inlet (4) and an outlet (5) are closed and opened via servo drive or pneumatic drive, respectively. Preferably, the displacement element is embodied as a combined lifting/rotating plunger (6) which can perform a linear movement for a suctioning lift and a dosing lift while being able to perform a rotary movement for opening and closing the inlet (4) and the outlet (5), i.e. a valve function.
摘要:
The invention relates to a device for processing an edible product in the form of a viscous to pasty mass, in particular, an edible product based on a fatty mass, such as chocolate, or based on water, such as ice cream. Said device comprises dosing units (D1, D2) for the dosed supply of a specific volume of the mass to a bearing surface. Said dosing units (D1, D2) comprise, respectively, a dosing piston (4) which is mounted in a piston chamber, whereby the dosing piston (4) moves at least in a rotational manner about the piston axis thereof (A1). A first plurality of dosing units (D1) are arranged on a first plane, and a second plurality of dosing units (D2) are arranged on a second plane. The dosing piston (4) of the dosing units (D1), which are arranged on the first plane (D1), are rotationally driven by means of a first drive element (7; 16), and the dosing piston (4) of the dosing units (D2), which are arranged on the second plane, are rotationally driven by means of a second drive element (8; 16).
摘要:
This invention relates to a reactor unit with a first chamber and a second chamber, wherein the first chamber is formed by the interior of a housing and wherein the second chamber is formed by the interior of a plurality of hollow fibers arranged in the housing. The hollow fibers are arranged in the housing such that their density in at least one region of the first chamber does not exceed 10 fibers/mm2, based on the cross-sectional area of the first chamber. In accordance with another aspect of the invention it is provided that in the reactor unit two casting compounds are arranged, in which a portion of the hollow fibers is embedded and between which another portion of the hollow fibers extends, wherein the length of at least some or all hollow fibers is at least 0.5% greater than the distance of the casting compounds.
摘要翻译:本发明涉及具有第一室和第二室的反应器单元,其中第一室由壳体的内部形成,并且其中第二室由布置在壳体中的多个中空纤维的内部形成。 中空纤维布置在壳体中,使得它们在第一腔室的至少一个区域中的密度基于第一腔室的横截面面积不超过10根纤维/ mm 2。 根据本发明的另一方面,提供了在反应器单元中,布置两个铸造化合物,其中中空纤维的一部分被嵌入,并且在另一部分中空纤维之间延伸,其中至少一些中空纤维的长度 或所有中空纤维比铸造化合物的距离大至少0.5%。
摘要:
Methods are disclosed for generating and isolating an informative content repository of respiratory related biomarkers to accurately determine whether an individual has normal or abnormal pulmonary function. Specifically, methods are directed to determination of whether individuals have chronic obstructive pulmonary disease, and if so, whether the affected individuals experience rapid long decline or slow lung decline as a result of COPD. Also disclosed is an informative content repository of chronic obstructive pulmonary disease biomarkers, which when linked with other informative content provides a powerful tool for diagnosis, study, therapeutic discovery and development, condition management, health maintenance, and linking chronic obstructive pulmonary disease through pattern of life style, environmental exposure, and genetic susceptibility and inheritance. Disclosed herein is a chronic obstructive pulmonary disease biomarker informative content repository comprising at least one COPD biomarker, apparatus and methods to diagnose, assess, address, and ameliorate related conditions.