Refrigerant compressor

A refrigerant compressor comprising:

• a discharge port constructed in a member forming a compression chamber;
• a discharge vale formed in a reed shape and constituted by a valve cover portion for opening and closing said discharge port at one end and a fixed portion at another end;
• and
• a substantially rectangular valve restricting plate closely fixed to a member forming said compression chamber together with the fixed portion of the discharge valve and restricting an opening amount of a side of said valve cover portion,
• wherein a head portion wider than a middle portion of the valve restricting plate is provided in said valve restricting plate in a side with which said valve cover portion of the discharge valve is brought into contact, and a circular recess portion and a small hole extending from the recess portion to an opposite side to the contact surface are provided in a side of the contact surface of the head portion.

A refrigerant compressor comprising:

• a discharge port constructed in a member forming a compression chamber;
• a discharge vale formed in a reed shape and constituted by a valve cover portion for opening and closing said discharge port at one end and a fixed portion at another end;
• and
• a substantially rectangular valve restricting plate closely fixed to a member forming said compression chamber together with the fixed portion of the discharge valve and restricting an opening amount of a side of said valve cover portion,
• wherein a head portion wider than a middle portion of the valve restricting plate is provided in said valve restricting plate in a side with which the valve cover portion of said discharge valve is brought into contact, and a U-shaped notch having an open front end is provided in the head portion.

A refrigerant compressor comprising:

• a discharge port constructed in a member forming a compression chamber;
• a discharge vale formed in a reed shape and constituted by a valve cover portion for opening and closing said discharge port at one end and a fixed portion at another end;
• and
• a substantially rectangular valve restricting plate closely fixed to a member forming said compression chamber together with the fixed portion of the discharge valve and restricting an opening amount of a side of said valve cover portion,
• wherein a head portion wider than a middle portion of the valve restricting plate is provided in said valve restricting plate in a side with which the valve cover portion of said discharge valve is brought into contact, and a recess portion having a front end open to a side of the contact surface and a circular shape in a side of the fixed portion is provided in the head portion.