A piston expander
An expander, piston-type technology, applied in the field of refrigeration, can solve problems such as limiting the scope of application, and achieve the effects of improving service life, avoiding fluctuations, and running the crankshaft smoothly.
Inactive Publication Date: 2021-06-04
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
View PDF0 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The piston expander realizes the reciprocating motion of the piston through the connecting rod crankshaft. The expansion ratio of the existing piston expander is fixed. If the expansion ratio is to be changed, the connecting rod crankshaft system needs to be replaced as a whole, which limits its scope of application.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0021] The standard parts used in the present invention can be purchased from the market, and the special-shaped parts can be customized according to the instructions and the accompanying drawings. The specific connection methods of each part adopt mature bolts, rivets, welding in the prior art , pasting and other conventional means, no longer described in detail here.
[0022] refer to Figure 1-7 A specific embodiment of the present invention includes a cylinder block 1, a piston 2 is movably arranged in the cylinder block 1, and the piston 2 is connected to a crankshaft 4 through a connecting rod 3. A crank arm 5 is arranged on the crankshaft 4, and a crank arm 5 is arranged on the crank arm 5. The connecting rod journal 6, the connecting rod 3 and the connecting rod journal 6 are movably socketed; the crank arm 5 is provided with a chute 7, and the two ends of the connecting rod journal 6 are slidably inserted in the chute 7, and the chute 7 One end is equipped with a cyl...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a piston type expander, comprising a cylinder body, a piston is movably arranged in the cylinder body, the piston is connected to a crankshaft through a connecting rod, a crank arm is arranged on the crankshaft, and a connecting rod journal is arranged on the crank arm, The connecting rod and the connecting rod journal are movable socketed; the crank arm is provided with a chute, and the two ends of the connecting rod journal are slid and inserted in the chute, and one end of the chute is installed with a cylinder, and the piston of the cylinder and the connecting rod journal Fixed connection, the side wall of the chute is provided with a positioning rack, the two ends of the connecting rod journal are respectively provided with blind holes, the top of the blind hole is fixed with an annular iron ring, and an electromagnet is slidingly inserted into the blind hole, and the electromagnet is fixed There is a bolt, and the top of the bolt is fixed with a tooth head matched with the positioning rack. The invention can improve the deficiencies of the prior art and realize the flexible adjustment of the expansion ratio of the piston expander during operation.
Description
technical field [0001] The invention relates to the technical field of refrigeration, in particular to a piston expander. Background technique [0002] The expander generates cooling capacity in the cold chamber during the isothermal expansion process using the movement of the working fluid gas. Due to its simple structure, large expansion ratio, small volume and other advantages, the piston expander has been paid more and more attention. The piston expander realizes the reciprocating motion of the piston through the connecting rod crankshaft. The expansion ratio of the existing piston expander is fixed. If the expansion ratio is to be changed, the connecting rod crankshaft system needs to be replaced as a whole, which limits its scope of application. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a piston expander, which can solve the deficiencies of the prior art and realize flexible adjustment of the expansi...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): F01B9/02F01B31/00
Inventor 刘博想李晓静郑国忠
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)