Patent ID: 9303635
Filing Date: 2016-04-05
CPC Classification: F04B

Claim Text:
1. A compressor comprising: a motor having a rotational shaft; a piston reciprocating by the motor; a crankcase comprising: a printed circuit board between the motor and the crankcase exposed to an outside of the compressor; a first cylinder body secured to an internal surface of the first wall portion, a second cylinder body secured to an internal surface of the second wall portion, a third cylinder body secured to an internal surface of the third wall portion, and a fourth cylinder body secured to an internal surface of the fourth wall portion, the first cylinder body, the second cylinder body, the third cylinder body, the fourth cylinder body, the first wall portion, the second wall portion, the third wall portion and the fourth wall portion defining a chamber, a capacity of the chamber increasing or decreasing by reciprocating the piston; and a first cylinder head secured to an outer surface of the first wall portion, a second cylinder head secured to an outer surface of the second wall portion, a third cylinder head secured to an outer surface of the third wall portion and a fourth cylinder head secured to an outer surface of the fourth wall portion, the first cylinder head and the first wall portion defining a first flow path communicated with the chamber through the first communication hole, the second cylinder head and the second wall portion defining a second flow path communicated with the chamber through the second communication hole, the third cylinder head and the third wall portion defining a third flow path communicated with the chamber through the third communication hole, the fourth cylinder head and the fourth wall portion defining a fourth flow path communicated with the chamber through the fourth communication hole, wherein the first wall portion and the second wall portion are adjacent to each other, the piston does not enter any of the first flow path, the second flow path, the third flow path and the fourth flow path, and the first flow path and the second flow path are directly connected to and communicate with each other.