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81. 发明专利

CZ278091B6 TOOTH INTERNAL COMBUSTION ENGINE 未知
公开(公告)号：CZ278091B6
公开(公告)日：1993-08-11
申请号：CS130090
申请日：1990-03-19
申请人： NOVAK JAN
发明人： NOVAK JAN
IPC分类号： F02G1/02 , F01C1/08 , F01C11/00 , F02B53/08 , F02G3/00
摘要： The principle of the solution is based on the fact that the body of the gear compressor (1), used to fill the combustion chamber (2) with air, passes through the combustion chamber (3). In the combustion chamber (2) there is a spark plug (3) which ignites the mixture and a jet (4) for spraying the fuel into the combustion chamber (2). The combustion chamber continues to the body of the primary gear engine (6) through which the exhaust gases are collected from the combustion chamber (2). In the perimeter of the body of the primary gear engine (7) there are holes (10), the contour length of which is smaller than the contour length of the gear heads (11) of the gear wheels (9) of the primary geared engine (7) so that these holes (10) are closed by the gear heads (11). These holes (10) which continue to the channels (12) and the body of the secondary geared engine (13) are used to collect the exhaust gases enclosed in the gear gaps and using the secondary geared engine (13) they make it possible to adiabatically expand them. The gear compressor (1) and the fuel pump (6) are driven by the primary geared engine (7) and the secondary geared engine.

90. 发明专利

CS231266B1 FORMING CLAWS FOR MAKING OF SPIRAL PARTS FROM TUBULAR HALF-PRODUCTS 未知
公开(公告)号：CS231266B1
公开(公告)日：1984-10-15
申请号：CS935781
申请日：1981-12-16
申请人： SVERCL JOSEF , NOVAK JAN , ZAMPACH STEPAN
发明人： SVERCL JOSEF , NOVAK JAN , ZAMPACH STEPAN
IPC分类号： B29D1/00 , B21C37/15 , B21D11/06 , B21D11/14 , B21D15/04 , B21D15/12 , B21K1/12 , B21K21/16 , B29C33/00 , B29C61/00 , B29C65/00 , B21D15/00
摘要： Forming die for manufacturing screw workpieces of a tube semi-product, e.g. rotors of single-spindle pumps. The function cavity of the forming dies consists of a guide part, a forming part, and a calibrating part. The guide part of the function cavity is formed by the intersection of a cylindrical surface and a helix, the forming part is formed by the intersection of a conical surface and a helix, and the calibrating part is of the shape of the helix of the final product. A minimum length of the guide part of the function cavity is equal to the diameter of the cylindrical surface, but the minimum length of the forming part as well as the length of the calibrating part of the function cavity is equal to one lead of the helix. The ratio of the diameter of the cylindrical surface of the guide part to the diameter of the helix is at least 1.1:1.

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