ONE-WAY FILTER DRIER

• US 20120217200A1
• Filed: 02/27/2012
• Published: 08/30/2012
• Est. Priority Date: 02/28/2011
• Status: Abandoned Application

• Current Assignee: Zhejiang Sanhua Climate and Appliance Controls Group Company Limited (Sanhua Holding Group Company Limited)
• Original Assignee: Zhejiang Sanhua Climate and Appliance Controls Group Company Limited (Sanhua Holding Group Company Limited)
• Inventors: Wu, Linping
• Application Number:
  US13/405,510
• Publication Number:
  US 20120217200A1
• Time in Patent Office: Days
• US Class Current: 210/352
• CPC Class Codes: F25B 43/003 Filters

Abstract

Disclosed herein is a one-way filter drier comprising a cartridge having an inlet and an outlet, a molecular sieve being provided inside the cartridge, a first filter sheet being provided between the molecular sieve and the outlet, a spring and a second filter sheet being provided between the inlet and the molecular sieve in sequence, wherein at least one piece of third filter sheet is provided in the spring. In the one-way filter drier provided by the present application, the third filter sheet is provided in the spring, the refrigerant still has relative large flowing space after entering via the inlet, which may ensure the requirement of the fluid flux; at the same time, the third filter sheet combining with the first filter sheet and the second filter sheet may maximize the filter capacity.

Claims

1. A one-way filter drier, comprising a cartridge having an inlet and an outlet, a molecular sieve being provided inside the cartridge, a first filter sheet being provided between the molecular sieve and the outlet, a spring and a second filter sheet being provided between the inlet and the molecular sieve in sequence, wherein at least one piece of third filter sheet is provided in the spring.

2. The one-way filter drier according to claim 1, wherein the third filter sheet is fastened by the spring.

3. The one-way filter drier according to claim 2, wherein a diameter of one end of the spring contacting with an inlet blocking net is less than a diameter of the inlet blocking net.

4. The one-way filter drier according to claim 3, wherein a diameter of a bottom portion of the spring abutting against the second filter sheet is equal to a diameter of the second filter sheet.

5. The one-way filter drier according to claim 1, wherein the second filter sheet is made of glass wool board and the first filter sheet is made of glass wool felt.

6. The one-way filter drier according to claim 5, wherein the glass wool board has a density ρ

₂ meeting an expression of 25 kg/m³≦

ρ

₂≦

50 kg/m³, a thickness t₂ meeting an expression of 10 mm≦

t₂≦

50 mm, and a fiber diameter d₂ not larger than 10 μ

m; and

the glass wool felt has a density ρ

₁ meeting an expression of 10 kg/m³≦

ρ

₁≦

40 kg/m³, a thickness t₁ meeting an expression of 20 mm≦

t₁≦

30 mm, and a fiber diameter d₁ not larger than 15 μ

m.

7. The one-way filter drier according to claim 6, wherein the third filter sheet is made of glass wool board with a density ρ

₃ meeting an expression of 25 kg/m³≦

ρ

₃≦

50 kg/m³, a thickness t₃ meeting an expression of 10 mm≦

t₃≦

50 mm and a fiber diameter d₃ not larger than 10 μ

m.